Difference between revisions of "Acceleo/Acceleo Operations Reference"

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(First version of the Acceleo operations reference.)
 
m (Formatting)
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h5. lastIndex (String r) : Integer
+
=== lastIndex (String r) : Integer ===
 
+
Returns the last index of substring *r* in *self*, or -1 if *self* contains no occurrence of *r*. *Important:* String indexes start at 1. Consequently the last character's index in a string is equal to the string's length.
  Returns the last index of substring *r* in *self*, or -1 if *self* contains no occurrence of *r*.
+
 
+
  **Important:** String indexes start at 1. Consequently the last character's index in a string
+
  is equal to the string's length.
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +-------------------------------------------------------------+----------------------------+
 
   +-------------------------------------------------------------+----------------------------+
Line 253: Line 245:
  
  
h5. matches (String regex) : Boolean
+
=== matches (String regex) : Boolean ===
 
+
Returns *true* if *self* matches the given regular expression pattern *regex*, *false* otherwise. The regex engine used is that of your runtime JDK. The given pattern is passed "as is" to the method *matches* of the java class *String*. For more about regular expressions, please refer to the JDK API documentation.
  Returns **true** if *self* matches the given regular expression pattern *regex*, **false** otherwise.
+
  The regex engine used is that of your runtime JDK. The given pattern is passed "as is" to the method *matches*
+
  of the java class *String*.
+
  For more about regular expressions, please refer to the JDK API documentation.
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +-------------------------------------------------------------+----------------------------+
 
   +-------------------------------------------------------------+----------------------------+
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h5. replace (String substring, String replacement) : String
+
=== replace (String substring, String replacement) : String ===
 
+
Substitutes the first occurrence of substring *substring* in *self* by substring *replacement* and returns the resulting string. Returns *self* if it contains no occurrence of *substring*. Note that both *substring* and *replacement* are treated as regular expressions.
  Substitutes the first occurrence of substring *substring* in *self* by substring *replacement* and returns the
+
  resulting string. Returns *self* if it contains no occurrence of *substring*. Note that both *substring* and
+
  *replacement* are treated as regular expressions.
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +-------------------------------------------------------------+----------------------------+
 
   +-------------------------------------------------------------+----------------------------+
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h5. replaceAll (String substring, String replacement) : String
+
=== replaceAll (String substring, String replacement) : String ===
 
+
Substitutes all substrings *substring* in *self* by substring *replacement* and returns the resulting string. Returns *self* if it contains no occurrence of *substring*. Note that both *substring* and *replacement* are treated as regular expressions.
  Substitutes all substrings *substring* in *self* by substring *replacement* and returns the resulting string.
+
  Returns *self* if it contains no occurrence of *substring*. Note that both *substring* and *replacement* are
+
  treated as regular expressions.
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +---------------------------------------------------------------+----------------------------+
 
   +---------------------------------------------------------------+----------------------------+
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h5. startsWith (String substring) : Boolean
+
=== startsWith (String substring) : Boolean ===
 
+
Returns *true* if *self* starts with the substring *substring*, *false* otherwise.
  Returns **true** if *self* starts with the substring *substring*, **false** otherwise.
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +-------------------------------------------------------------+----------------------------+
 
   +-------------------------------------------------------------+----------------------------+
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h5. substituteAll (String substring, String replacement) : String
+
=== substituteAll (String substring, String replacement) : String ===
 
+
Substitutes all substrings *substring* in self by substring *replacement* and returns the resulting string. Returns *self* if it contains no occurrence of *substring*. Unlike the *replaceAll* operation, neither *substring* nor *replacement* are considered as regular expressions.
  Substitutes all substrings *substring* in self by substring *replacement* and returns the resulting string.
+
  Returns *self* if it contains no occurrence of *substring*. Unlike the **replaceAll** operation, neither
+
  *substring* nor *replacement* are considered as regular expressions.
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +-------------------------------------------------------------+----------------------------+
 
   +-------------------------------------------------------------+----------------------------+
Line 349: Line 307:
  
  
h5. substring (Integer startIndex) : String
+
=== substring (Integer startIndex) : String ===
 
+
Returns a substring of *self*, starting at *startIndex* (inclusive), until the end of *self*. Returns |invalid| when the *startIndex* is either negative, zero, or greater than *self*'s length. *Important:* String indexes start at 1. Consequently the last character's index in a string is equal to the string's length.
  Returns a substring of *self*, starting at *startIndex* (inclusive), until the end of *self*.
+
  Returns |invalid| when the *startIndex* is either negative, zero, or greater than *self*'s length.
+
 
+
  **Important:** String indexes start at 1. Consequently the last character's index in a string
+
  is equal to the string's length.
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +-------------------------------------------------------------+----------------------------+
 
   +-------------------------------------------------------------+----------------------------+
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h5. tokenize (String substring) : Sequence(String)
+
=== tokenize (String substring) : Sequence(String) ===
 
+
Returns a sequence containing all parts of self split around delimiters defined by the characters in String delim.
  Returns a sequence containing all parts of self split around delimiters defined by the characters in
+
  String delim.
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +-------------------------------------------------------------+-------------------------------------------+
 
   +-------------------------------------------------------------+-------------------------------------------+
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h5. trim () : String
+
=== trim () : String ===
 
+
Removes all leading and trailing white space characters (tabulation, space, line feed, ...) of *self*.
  Removes all leading and trailing white space characters (tabulation, space, line feed, ...) of *self*.
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +-------------------------------------------------------------+----------------------------+
 
   +-------------------------------------------------------------+----------------------------+
Line 410: Line 348:
  
  
h4. Non-standard *EObject* operations
+
== Non-standard *EObject* operations ==
 
+
All of the examples from this section are set in the context of this model (with **root** being an instance of *Model* as per the UML metamodel) :
 
+
All of the examples from this section are set in the context of this model (with **root** being an instance of
+
*Model* as per the UML metamodel) :
+
 
   
 
   
 
  !../images/model_example.png!
 
  !../images/model_example.png!
  
h5. ancestors () : Sequence(EObject)
+
=== ancestors () : Sequence(EObject) ===
 
+
Returns a Sequence containing the full set of the receiver's ancestors.
  Returns a Sequence containing the full set of the receiver's ancestors.
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +-----------------------------+--------------------------------------+
 
   +-----------------------------+--------------------------------------+
Line 435: Line 365:
  
  
h5. ancestors (OclType oclType) : Sequence(oclType)
+
=== ancestors (OclType oclType) : Sequence(oclType) ===
 
+
Returns the elements of the given type from the set of the receiver's ancestors as a Sequence. The returned sequence's elements are typed with the expected type (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).
 
+
  Returns the elements of the given type from the set of the receiver's ancestors as a Sequence.
+
  The returned sequence's elements are typed with the expected type
+
  (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +------------------------------+--------------------------------------+
 
   +------------------------------+--------------------------------------+
Line 455: Line 377:
  
  
h5. eAllContents () : Sequence(EObject)
+
=== eAllContents () : Sequence(EObject) ===
 
+
Returns the whole content tree of the receiver as a Sequence.
  Returns the whole content tree of the receiver as a Sequence.
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +-----------------------------+-------------------------------------------------------------------------------------+
 
   +-----------------------------+-------------------------------------------------------------------------------------+
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h5. eAllContents (OclType oclType) : Sequence(oclType)
+
=== eAllContents (OclType oclType) : Sequence(oclType) ===
 
+
Returns the elements of the given type from the whole content tree of the receiver as a Sequence. The returned sequence's elements are typed with the expected type (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).
  Returns the elements of the given type from the whole content tree of the receiver as a Sequence.
+
  The returned sequence's elements are typed with the expected type
+
  (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +-------------------------------+----------------------------------------------+
 
   +-------------------------------+----------------------------------------------+
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h5. eContainer (OclType oclType) : oclType
+
=== eContainer (OclType oclType) : oclType ===
 
+
Returns the first ancestor of the given type, i.e. the first ancestor for which @oclIsKindOf(oclType)@ evaluates to **true**. The returned element is typed with the expected type (so there's no need to invoke @oclAsType(oclType)@ on it). *Important:* users of Acceleo 2.x should note that, contrary to what took place in acceleo 2.x, this operation **never** returns *self* even when @self.oclIsKindOf(oclType)@ is true.
  Returns the first ancestor of the given type, i.e. the first ancestor for which
+
  @oclIsKindOf(oclType)@ evaluates to **true**.
+
  The returned element is typed with the expected type (so there's no need to invoke @oclAsType(oclType)@ on it).
+
 
+
  **Important:** users of Acceleo 2.x should note that, contrary to what took place in acceleo 2.x,
+
  this operation **never** returns *self* even when @self.oclIsKindOf(oclType)@ is true.
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +------------------------------+------------------+
 
   +------------------------------+------------------+
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h5. eContents (OclType oclType) : Sequence(oclType)
+
=== eContents (OclType oclType) : Sequence(oclType) ===
 
+
Returns a sequence of the direct children of *self* that are of the given type, i.e. the direct children for which @oclIsKindOf(oclType)@ evaluates to **true**. The returned sequence's elements are typed with the expected type (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).
  Returns a sequence of the direct children of *self* that are of the given type, i.e. the direct children for which
+
  @oclIsKindOf(oclType)@ evaluates to **true**.
+
  The returned sequence's elements are typed with the expected type
+
  (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +------------------------------+------------------------------+
 
   +------------------------------+------------------------------+
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h5. eGet (String featureName) : EJavaObject
+
=== eGet (String featureName) : EJavaObject ===
 
+
This will fetch the value of the feature named *featureName* on the current Object. Return type can as well be a collection as a single value.
  This will fetch the value of the feature named *featureName* on the current Object. Return type
+
  can as well be a collection as a single value.
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +-------------------------------------------------+---------------------------------------+
 
   +-------------------------------------------------+---------------------------------------+
Line 556: Line 442:
  
  
h5. eInverse () : Sequence(EObject)
+
=== eInverse () : Sequence(EObject) ===
 
+
Returns the set of all objects referencing *self*.
  Returns the set of all objects referencing *self*.
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +----------------------------------+-------------------------------------+
 
   +----------------------------------+-------------------------------------+
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h5. eInverse (OclType oclType) : Sequence(oclType)
+
=== eInverse (OclType oclType) : Sequence(oclType) ===
 
+
Returns the elements of the given type from the set of the inverse references of *self*. The returned sequence's elements are typed with the expected type (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).
  Returns the elements of the given type from the set of the inverse references of *self*.
+
  The returned sequence's elements are typed with the expected type
+
  (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +----------------------------------------------+---------------------------------+
 
   +----------------------------------------------+---------------------------------+
Line 593: Line 467:
  
  
h5. followingSiblings () : Sequence(EObject)
+
=== followingSiblings () : Sequence(EObject) ===
 
+
Returns a Sequence containing the full set of the receiver's following siblings.
  Returns a Sequence containing the full set of the receiver's following siblings.
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +-----------------------------+--------------------------------------+
 
   +-----------------------------+--------------------------------------+
Line 610: Line 479:
  
  
h5. followingSiblings (OclType oclType) : Sequence(oclType)
+
=== followingSiblings (OclType oclType) : Sequence(oclType) ===
 
+
Returns the elements of the given type from the set of the receiver's following siblings as a Sequence. The returned sequence's elements are typed with the expected type (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).
 
+
  Returns the elements of the given type from the set of the receiver's following siblings as a Sequence.
+
  The returned sequence's elements are typed with the expected type
+
  (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +------------------------------------+--------------------------------+
 
   +------------------------------------+--------------------------------+
Line 632: Line 493:
  
  
h5. precedingSiblings () : Sequence(EObject)
+
=== precedingSiblings () : Sequence(EObject) ===
 
+
Returns a Sequence containing the full set of the receiver's preceding siblings.
  Returns a Sequence containing the full set of the receiver's preceding siblings.
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +------------------------------+--------------------------------------+
 
   +------------------------------+--------------------------------------+
Line 652: Line 508:
  
  
h5. precedingSiblings (OclType oclType) : Sequence(oclType)
+
=== precedingSiblings (OclType oclType) : Sequence(oclType) ===
 
+
Returns the elements of the given type from the set of the receiver's preceding siblings as a Sequence. The returned sequence's elements are typed with the expected type (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).
  Returns the elements of the given type from the set of the receiver's preceding siblings as a Sequence.
+
  The returned sequence's elements are typed with the expected type
+
  (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +------------------------------------+--------------------------------+
 
   +------------------------------------+--------------------------------+
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h5. siblings () : Sequence(EObject)
+
=== siblings () : Sequence(EObject) ===
 
+
Returns a Sequence containing the full set of the receiver's siblings.
  Returns a Sequence containing the full set of the receiver's siblings.
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +-----------------------------+--------------------------------------+
 
   +-----------------------------+--------------------------------------+
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h5. siblings (OclType oclType) : Sequence(oclType)
+
=== siblings (OclType oclType) : Sequence(oclType) ===
 
+
Returns the elements of the given type from the set of the receiver's siblings as a Sequence. The returned sequence's elements are typed with the expected type (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).
  Returns the elements of the given type from the set of the receiver's siblings as a Sequence.
+
  The returned sequence's elements are typed with the expected type
+
  (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).
+
 
+
  examples:
+
 
+
  .. class:: exampletable
+
  
 
   +----------------------------------------------+---------------------+
 
   +----------------------------------------------+---------------------+
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h4. Non-standard *OclAny* operations
+
== Non-standard *OclAny* operations ==
 +
*A note on properties*: properties can be accessed only if they've been added through the API. For this purpose, a number of facilities is provided. You can either override the generated launcher's *addProperties* method and add new paths to properties files there, call manually one of the methods **AcceleoService#addPropertiesFile()** or manually add key/value pairs through **AcceleoService#addProperties()**. Take note that the key/value pairs manually added will *always* take precedence over the properties taken from *.properties* files; and the *first* added property file will always take precedence over subsequently added files.
  
+
The example on all four *getProperty* variants will take into account the following setup: we provided the environment with a properties file *a.properties* containing the key/value pair:
**A note on properties**: properties can be accessed only if they've been added through the API. For this
+
purpose, a number of facilities is provided. You can either override the generated launcher's *addProperties*
+
method and add new paths to properties files there, call manually one of the methods
+
**AcceleoService#addPropertiesFile()** or manually add key/value pairs through **AcceleoService#addProperties()**.
+
Take note that the key/value pairs manually added will *always* take precedence over the properties taken from
+
*.properties* files; and the *first* added property file will always take precedence over subsequently added
+
files.
+
+
The example on all four *getProperty* variants will take into account the following setup: we provided the
+
environment with a properties file *a.properties* containing the key/value pair:
+
 
   
 
   
 
  ::
 
  ::
Line 735: Line 563:
 
   a.b.c = Parameterized property with a name conflict: {0}
 
   a.b.c = Parameterized property with a name conflict: {0}
  
h5. current (Integer index) : OclAny
+
=== current (Integer index) : OclAny ===
 
+
Returns the value of the context *index* ranks above the current context.
 
+
The following example is explained line by line in the "result" column.
  Returns the value of the context *index* ranks above the current context.
+
 
+
  The following example is explained line by line in the "result" column.
+
  
 
   .. list-table::
 
   .. list-table::
Line 763: Line 588:
  
  
h5. current (OclType filter) : OclAny
+
=== current (OclType filter) : OclAny ===
  
  
Line 793: Line 618:
  
  
h5. getProperty (String key) : OclAny
+
=== getProperty (String key) : OclAny ===
  
 
   Returns the value of the property corresponding to the given *key*. Note that parameterized properties will be
 
   Returns the value of the property corresponding to the given *key*. Note that parameterized properties will be
Line 814: Line 639:
  
  
h5. getProperty (String key, Sequence(OclAny) parameters) : OclAny
+
=== getProperty (String key, Sequence(OclAny) parameters) : OclAny ===
  
 
   Returns the value of the property corresponding to the given key, with its parameters substituted with the given
 
   Returns the value of the property corresponding to the given key, with its parameters substituted with the given
Line 835: Line 660:
  
  
h5. getProperty (String name, String key) : OclAny
+
=== getProperty (String name, String key) : OclAny ===
  
 
   Returns the value of the property corresponding to the given *key* from a properties file corresponding to the
 
   Returns the value of the property corresponding to the given *key* from a properties file corresponding to the
Line 854: Line 679:
  
  
h5. getProperty (String name, String key, Sequence(OclAny) parameters) : OclAny
+
=== getProperty (String name, String key, Sequence(OclAny) parameters) : OclAny ===
  
 
   Returns the value of the property corresponding to the given *key* from a properties file corresponding to the
 
   Returns the value of the property corresponding to the given *key* from a properties file corresponding to the
Line 875: Line 700:
  
  
h5. invoke (String class, String method, Sequence(OclAny) arguments ) : OclAny
+
=== invoke (String class, String method, Sequence(OclAny) arguments ) : OclAny ===
  
 
   Invokes the Java method *method* of class *class* with the given arguments. This will return OclInvalid if the method
 
   Invokes the Java method *method* of class *class* with the given arguments. This will return OclInvalid if the method
Line 893: Line 718:
  
  
h5. toString () : String
+
=== toString () : String ===
  
 
   Returns the String representation of the receiver.
 
   Returns the String representation of the receiver.
Line 910: Line 735:
  
  
h4. Non-standard *Collection* operations
+
== Non-standard *Collection* operations ==
  
  
h5. sep (String separator) : Sequence(OclAny)
+
=== sep (String separator) : Sequence(OclAny) ===
  
 
   Returns all elements from the source collection separated by an element composed of the String *separator*.
 
   Returns all elements from the source collection separated by an element composed of the String *separator*.
Line 931: Line 756:
  
  
h5. filter (OclType type) : Sequence(OclType)
+
=== filter (OclType type) : Sequence(OclType) ===
  
 
   Filters out of the collection all elements that are not instances
 
   Filters out of the collection all elements that are not instances
Line 950: Line 775:
  
  
h5. reverse () (Only on ordered collections)
+
=== reverse () (Only on ordered collections) ===
  
 
   Reverses the order of the collection: the last element becomes the first and
 
   Reverses the order of the collection: the last element becomes the first and
Line 970: Line 795:
  
  
h5. lastIndexOf (T elt) : Integer (Only on ordered collections)
+
=== lastIndexOf (T elt) : Integer (Only on ordered collections) ===
  
 
   Returns the position of the given element in the collection it is applied to.
 
   Returns the position of the given element in the collection it is applied to.

Revision as of 03:59, 11 January 2011

Contents

Acceleo operationq reference

Standard *String* Operations

first (Integer n) : String

Returns the first *n* characters of *self*, or *self* if its size is less than *n*.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 'first operation'.first(8)                                  | 'first op'                 |
  +-------------------------------------------------------------+----------------------------+
  | 'first operation'.first(-1)                                 | |invalid|                  |
  +-------------------------------------------------------------+----------------------------+


index (String r) : Integer

Returns the index of substring *r* in *self*, or -1 if *self* contains no occurrence of *r*.

  • Important:* String indexes start at 1. Consequently the last character's index in a string is equal to the string's length.
  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 'index operation'.index('op')                               | 7                          |
  +-------------------------------------------------------------+----------------------------+
  | 'index operation'.index('i')                                | 1                          |
  +-------------------------------------------------------------+----------------------------+
  | 'index operation'.index('foo')                              | -1                         |
  +-------------------------------------------------------------+----------------------------+


isAlpha () : Boolean

Returns *true* if *self* consists only of alphabetical characters, *false* otherwise.

  +-------------------------------------------------------------+-----------------------------------------------+
  | Expression                                                  | Result                                        |
  +=============================================================+===============================================+
  | 'isAlpha'.isAlpha()                                         | true                                          |
  +-------------------------------------------------------------+-----------------------------------------------+
  | 'isAlpha operation'.isAlpha()                               | false (spaces are not alphabetical characters)|
  +-------------------------------------------------------------+-----------------------------------------------+
  | 'isAlpha11'.isAlpha()                                       | false (digits are not alphabetical characters)|
  +-------------------------------------------------------------+-----------------------------------------------+


isAlphanum () : Boolean

Returns *true* if *self* consists only of alphanumeric characters, *false* otherwise.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 'isAlphanum'.isAlphanum()                                   | true                       |
  +-------------------------------------------------------------+----------------------------+
  | 'isAlphanum operation'.isAlphanum()                         | false                      |
  +-------------------------------------------------------------+----------------------------+
  | 'isAlphanum11'.isAlphanum()                                 | true                       |
  +-------------------------------------------------------------+----------------------------+


last (Integer n) : String

Returns the last *n* characters of *self*, or *self* if its size is less than *n*.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 'first operation'.last(8)                                   | 'peration'                 |
  +-------------------------------------------------------------+----------------------------+
  | 'first operation'.last(40)                                  | 'first operation'          |
  +-------------------------------------------------------------+----------------------------+
  | 'first operation'.last(-1)                                  | |invalid|                  |
  +-------------------------------------------------------------+----------------------------+


strcmp (String s1) : Integer

Returns an integer that is either negative, zero or positive depending on whether *s1* is alphabetically less than, equal to or greater than *self*. Note that upper case letters come before lower case ones, so that 'AA' is closer to 'AC' than it is to 'Ab'.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 'strcmp operation'.strstr('strcmp')                         | 10                         |
  +-------------------------------------------------------------+----------------------------+
  | 'strcmp operation'.strstr('strcmp operation')               | 0                          |
  +-------------------------------------------------------------+----------------------------+
  | 'strcmp operation'.strstr('strtok')                         | -17                        |
  +-------------------------------------------------------------+----------------------------+


strstr (String r) : Boolean

Searches for string *r* in *self*. Returns *true* if found, *false* otherwise.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 'strstr operation'.strstr('ope')                            | true                       |
  +-------------------------------------------------------------+----------------------------+
  | 'strstr operation'.strstr('false')                          | false                      |
  +-------------------------------------------------------------+----------------------------+


strtok (String r, Integer n) : String

Breaks *self* into a sequence of tokens, each of which delimited by any one of the characters in *s1*, and return the next element in this sequence. The parameter flag should be *0* when strtok is called for the first time and will reset the sequence, *1* subsequently so as to access the next element.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 'strtok operation'.strtok('opz', 0)                         | 'strt'                     |
  +-------------------------------------------------------------+----------------------------+
  | 'strtok operation'.strtok('pn', 0)                          | 'strtok o'                 |
  +-------------------------------------------------------------+----------------------------+


substitute (String r, String t ) : String

Substitutes substring *r* in *self* by substring *t* and returns the resulting string. Will return *self* if it contains no occurrence of the substring *r*.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 'substitute operation'.substitute('t', 'T')                 | 'subsTiTuTe operaTion'     |
  +-------------------------------------------------------------+----------------------------+
  | 'foobar foobar foobar'.substitute('t', 'T')                 | 'foobar foobar foobar'     |
  +-------------------------------------------------------------+----------------------------+


toLowerFirst () : String

Creates a copy of *self* with its first character converted to lower case and returns it.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 'ToLowerFirst operation'.toLowerFirst()                     | 'toLowerFirst operation'   |
  +-------------------------------------------------------------+----------------------------+


toUpperFirst () : String

Creates a copy of *self* with its first character converted to upper case and returns it.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 'toUpperFirst operation'.toUpperFirst()                     | 'ToUpperFirst operation'   |
  +-------------------------------------------------------------+----------------------------+


Standard *Integer* operations

toString () : String

Converts the integer *self* to a string.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 2009.toString()                                             | '2009'                     |
  +-------------------------------------------------------------+----------------------------+


Standard *Real* operations

toString () : String

Converts the real *self* to a string.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | (-5.3).toString()                                           | '-5.3'                     |
  +-------------------------------------------------------------+----------------------------+


Acceleo non standard operations reference

Non-standard *String* operations

contains (String substring) : Boolean

Returns *true* if *self* contains the substring *substring*, *false* otherwise.

  +-------------------------------------------------------------+--------------------+
  | Expression                                                  | Result             |
  +=============================================================+====================+
  | 'contains operation'.contains('ins op')                     | true               |
  +-------------------------------------------------------------+--------------------+
  | 'contains operation'.contains('2009')                       | false              |
  +-------------------------------------------------------------+--------------------+


endsWith (String substring) : Boolean

Returns *true* if *self* ends with the substring *substring*, *false* otherwise.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 'endsWith operation'.endsWith('ation')                      | true                       |
  +-------------------------------------------------------------+----------------------------+
  | 'endsWith operation'.endsWith('endsWith')                   | false                      |
  +-------------------------------------------------------------+----------------------------+
  | 'anything'.endsWith()                                     | true                       |
  +-------------------------------------------------------------+----------------------------+


equalsIgnoreCase (String other) : Boolean

Returns *true* if *self* is equal to the string *other* ignoring case considerations, otherwise returns *false*. Two strings are considered equal ignoring case if they are of the same length and corresponding characters in the two strings are equal ignoring case.

  +--------------------------------------------------------------+----------------------------+
  | Expression                                                   | Result                     |
  +==============================================================+============================+
  | 'lowercase'.equalsIgnoreCase('LOWERCASE')                    | true                       |
  +--------------------------------------------------------------+----------------------------+
  | 'lowercase'.equalsIgnoreCase('lowercase')                    | true                       |
  +--------------------------------------------------------------+----------------------------+
  | 'lowercase'.equalsIgnoreCase('lowerCase')                    | true                       |
  +--------------------------------------------------------------+----------------------------+
  | 'lowercase'.equalsIgnoreCase('uppercase')                    | false                      |
  +--------------------------------------------------------------+----------------------------+


lastIndex (String r) : Integer

Returns the last index of substring *r* in *self*, or -1 if *self* contains no occurrence of *r*. *Important:* String indexes start at 1. Consequently the last character's index in a string is equal to the string's length.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 'index operation'.lastIndex('op')                           | 7                          |
  +-------------------------------------------------------------+----------------------------+
  | 'index operation'.lastIndex('o')                            | 14                         |
  +-------------------------------------------------------------+----------------------------+


matches (String regex) : Boolean

Returns *true* if *self* matches the given regular expression pattern *regex*, *false* otherwise. The regex engine used is that of your runtime JDK. The given pattern is passed "as is" to the method *matches* of the java class *String*. For more about regular expressions, please refer to the JDK API documentation.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 'characters and spaces'.matches('[\\w\\s]+')                | true                       |
  +-------------------------------------------------------------+----------------------------+
  | 'characters and 3 digits'.matches('[\\w\\s]+')              | false                      |
  +-------------------------------------------------------------+----------------------------+


replace (String substring, String replacement) : String

Substitutes the first occurrence of substring *substring* in *self* by substring *replacement* and returns the resulting string. Returns *self* if it contains no occurrence of *substring*. Note that both *substring* and *replacement* are treated as regular expressions.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 'replace operation'.replace('p', 'P')                       | 'rePlace operation'        |
  +-------------------------------------------------------------+----------------------------+
  | 'repla ce operation'.replace('(\\\\w+)\\\\s*', '\\\\1')     | 'replace operation'        |
  +-------------------------------------------------------------+----------------------------+


replaceAll (String substring, String replacement) : String

Substitutes all substrings *substring* in *self* by substring *replacement* and returns the resulting string. Returns *self* if it contains no occurrence of *substring*. Note that both *substring* and *replacement* are treated as regular expressions.

  +---------------------------------------------------------------+----------------------------+
  | Expression                                                    | Result                     |
  +===============================================================+============================+
  | 'replaceAll operation'.replaceAll('p', 'P')                   | 'rePlaceAll oPeration'     |
  +---------------------------------------------------------------+----------------------------+
  | 'Repla ce All Operation'.replaceAll('(\\\\w+)\\\\s*', '\\\\1')| 'ReplaceAllOperation'      |
  +---------------------------------------------------------------+----------------------------+


startsWith (String substring) : Boolean

Returns *true* if *self* starts with the substring *substring*, *false* otherwise.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 'startsWith operation'.startsWith('star')                   | true                       |
  +-------------------------------------------------------------+----------------------------+
  | 'startsWith operation'.startsWith('ope')                    | false                      |
  +-------------------------------------------------------------+----------------------------+
  | 'anything'.startsWith()                                   | true                       |
  +-------------------------------------------------------------+----------------------------+


substituteAll (String substring, String replacement) : String

Substitutes all substrings *substring* in self by substring *replacement* and returns the resulting string. Returns *self* if it contains no occurrence of *substring*. Unlike the *replaceAll* operation, neither *substring* nor *replacement* are considered as regular expressions.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 'substituteAll operation'.substituteAll('t', 'T')           | 'subsTiTuTeAll operaTion'  |
  +-------------------------------------------------------------+----------------------------+


substring (Integer startIndex) : String

Returns a substring of *self*, starting at *startIndex* (inclusive), until the end of *self*. Returns |invalid| when the *startIndex* is either negative, zero, or greater than *self*'s length. *Important:* String indexes start at 1. Consequently the last character's index in a string is equal to the string's length.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | 'short term'.substring(7)                                   | 'term'                     |
  +-------------------------------------------------------------+----------------------------+
  | 'short term'.substring(-1)                                  | |invalid|                  |
  +-------------------------------------------------------------+----------------------------+
  | 'short term'.substring(0)                                   | |invalid|                  |
  +-------------------------------------------------------------+----------------------------+
  | 'short term'.substring(10)                                  | 'm'                        |
  +-------------------------------------------------------------+----------------------------+
  | 'short term'.substring(11)                                  | |invalid|                  |
  +-------------------------------------------------------------+----------------------------+


tokenize (String substring) : Sequence(String)

Returns a sequence containing all parts of self split around delimiters defined by the characters in String delim.

  +-------------------------------------------------------------+-------------------------------------------+
  | Expression                                                  | Result                                    |
  +=============================================================+===========================================+
  | 'tokenize operation'.tokenize('e')                          | Sequence{'tok', 'niz', ' op', 'ration'}   |
  +-------------------------------------------------------------+-------------------------------------------+
  | 'tokenize operation'.tokenize('i')                          | Sequence{'token', 'ze operat', 'on'}      |
  +-------------------------------------------------------------+-------------------------------------------+


trim () : String

Removes all leading and trailing white space characters (tabulation, space, line feed, ...) of *self*.

  +-------------------------------------------------------------+----------------------------+
  | Expression                                                  | Result                     |
  +=============================================================+============================+
  | ' trim operation '.trim()                                   | 'trim operation'           |
  +-------------------------------------------------------------+----------------------------+


Non-standard *EObject* operations

All of the examples from this section are set in the context of this model (with **root** being an instance of *Model* as per the UML metamodel) :

!../images/model_example.png!

ancestors () : Sequence(EObject)

Returns a Sequence containing the full set of the receiver's ancestors.

  +-----------------------------+--------------------------------------+
  | Expression                  | Result                               |
  +=============================+======================================+
  | Class11.ancestors()         | Sequence{package11, package1, root}  |
  +-----------------------------+--------------------------------------+
  | package11.ancestors()       | Sequence{package1, root}             |
  +-----------------------------+--------------------------------------+


ancestors (OclType oclType) : Sequence(oclType)

Returns the elements of the given type from the set of the receiver's ancestors as a Sequence. The returned sequence's elements are typed with the expected type (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).

  +------------------------------+--------------------------------------+
  | Expression                   | Result                               |
  +==============================+======================================+
  | Class11.ancestors(Package)   | Sequence{package11, package1}        |
  +------------------------------+--------------------------------------+
  | package11.ancestors(Package) | Sequence{package1}                   |
  +------------------------------+--------------------------------------+


eAllContents () : Sequence(EObject)

Returns the whole content tree of the receiver as a Sequence.

  +-----------------------------+-------------------------------------------------------------------------------------+
  | Expression                  | Result                                                                              |
  +=============================+=====================================================================================+
  | root.eAllContents()         | Sequence{package1, package11, Class11, Class1a, Class1b, package2, Class2, aClas2}  |
  +-----------------------------+-------------------------------------------------------------------------------------+
  | package1.eAllContents()     | Sequence{package11, Class11, Class1a, Class1b}                                      |
  +-----------------------------+-------------------------------------------------------------------------------------+


eAllContents (OclType oclType) : Sequence(oclType)

Returns the elements of the given type from the whole content tree of the receiver as a Sequence. The returned sequence's elements are typed with the expected type (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).

  +-------------------------------+----------------------------------------------+
  | Expression                    | Result                                       |
  +===============================+==============================================+
  | root.eAllContents(Class)      | Sequence{Class11, Class1a, Class1b, Class2}  |
  +-------------------------------+----------------------------------------------+
  | package1.eAllContents(Class)  | Sequence{Class11, Class1a, Class1b}          |
  +-------------------------------+----------------------------------------------+


eContainer (OclType oclType) : oclType

Returns the first ancestor of the given type, i.e. the first ancestor for which @oclIsKindOf(oclType)@ evaluates to **true**. The returned element is typed with the expected type (so there's no need to invoke @oclAsType(oclType)@ on it). *Important:* users of Acceleo 2.x should note that, contrary to what took place in acceleo 2.x, this operation **never** returns *self* even when @self.oclIsKindOf(oclType)@ is true.

  +------------------------------+------------------+
  | Expression                   | Result           |
  +==============================+==================+
  | Class11.eContainer(Package)  | package11        |
  +------------------------------+------------------+
  | package11.eContainer(Package)| package1         |
  +------------------------------+------------------+
  | aClass2.eContainer(Package)  | package11        |
  +------------------------------+------------------+


eContents (OclType oclType) : Sequence(oclType)

Returns a sequence of the direct children of *self* that are of the given type, i.e. the direct children for which @oclIsKindOf(oclType)@ evaluates to **true**. The returned sequence's elements are typed with the expected type (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).

  +------------------------------+------------------------------+
  | Expression                   | Result                       |
  +==============================+==============================+
  | package1.eContents(Class)    | Sequence{Class1b, Class 1a}  |
  +------------------------------+------------------------------+


eGet (String featureName) : EJavaObject

This will fetch the value of the feature named *featureName* on the current Object. Return type can as well be a collection as a single value.

  +-------------------------------------------------+---------------------------------------+
  | Expression                                      | Result                                |
  +=================================================+=======================================+
  | package1.eGet('packagedElement')                | Sequence{Class1b, Class1a, package11} |
  +-------------------------------------------------+---------------------------------------+
  | package1.eGet('name')                           | 'package1'                            |
  +-------------------------------------------------+---------------------------------------+


eInverse () : Sequence(EObject)

Returns the set of all objects referencing *self*.

  +----------------------------------+-------------------------------------+
  | Expression                       | Result                              |
  +==================================+=====================================+
  | Class2.eInverse()                | Sequence{aClass2}                   |
  +----------------------------------+-------------------------------------+
  | package11.eInverse()             | Sequence{}                          |
  +----------------------------------+-------------------------------------+


eInverse (OclType oclType) : Sequence(oclType)

Returns the elements of the given type from the set of the inverse references of *self*. The returned sequence's elements are typed with the expected type (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).

  +----------------------------------------------+---------------------------------+
  | Expression                                   | Result                          |
  +==============================================+=================================+
  | Class2.eInverse(Property)                    | Sequence{aClass2}               |
  +----------------------------------------------+---------------------------------+
  | Class2.eInverse(Package)                     | Sequence{}                      |
  +----------------------------------------------+---------------------------------+


followingSiblings () : Sequence(EObject)

Returns a Sequence containing the full set of the receiver's following siblings.

  +-----------------------------+--------------------------------------+
  | Expression                  | Result                               |
  +=============================+======================================+
  | Class11.followingSiblings() | Sequence{}                           |
  +-----------------------------+--------------------------------------+
  | Class1b.followingSiblings() | Sequence{Class1a, package11}         |
  +-----------------------------+--------------------------------------+


followingSiblings (OclType oclType) : Sequence(oclType)

Returns the elements of the given type from the set of the receiver's following siblings as a Sequence. The returned sequence's elements are typed with the expected type (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).

  +------------------------------------+--------------------------------+
  | Expression                         |            Result              |
  +====================================+================================+
  | Class1b.followingSiblings(Package) | Sequence{package11}            |
  +------------------------------------+--------------------------------+
  | Class1b.followingSiblings(Class)   | Sequence{Class1a}              |
  +------------------------------------+--------------------------------+
  | Class1a.followingSiblings(Class)   | Sequence{}                     |
  +------------------------------------+--------------------------------+


precedingSiblings () : Sequence(EObject)

Returns a Sequence containing the full set of the receiver's preceding siblings.

  +------------------------------+--------------------------------------+
  | Expression                   | Result                               |
  +==============================+======================================+
  | package11.precedingSiblings()| Sequence{Class1b, Class1a}           |
  +------------------------------+--------------------------------------+
  | Class11.precedingSiblings()  | Sequence{}                           |
  +------------------------------+--------------------------------------+
  | Class1a.precedingSiblings()  | Sequence{Class1b}                    |
  +------------------------------+--------------------------------------+


precedingSiblings (OclType oclType) : Sequence(oclType)

Returns the elements of the given type from the set of the receiver's preceding siblings as a Sequence. The returned sequence's elements are typed with the expected type (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).

  +------------------------------------+--------------------------------+
  | Expression                         |            Result              |
  +====================================+================================+
  | Class1a.precedingSiblings(Package) | Sequence{}                     |
  +------------------------------------+--------------------------------+
  | Class1a.precedingSiblings(Class)   | Sequence{Class1b}              |
  +------------------------------------+--------------------------------+


siblings () : Sequence(EObject)

Returns a Sequence containing the full set of the receiver's siblings.

  +-----------------------------+--------------------------------------+
  | Expression                  | Result                               |
  +=============================+======================================+
  | Class11.siblings()          | Sequence{}                           |
  +-----------------------------+--------------------------------------+
  | Class1a.siblings()          | Sequence{package11, Class1b}         |
  +-----------------------------+--------------------------------------+


siblings (OclType oclType) : Sequence(oclType)

Returns the elements of the given type from the set of the receiver's siblings as a Sequence. The returned sequence's elements are typed with the expected type (so there's no need to invoke @oclAsType(oclType)@ on the sequence or its elements).

  +----------------------------------------------+---------------------+
  | Expression                                   | Result              |
  +==============================================+=====================+
  | Class11.siblings(Class)                      | Sequence{}          |
  +----------------------------------------------+---------------------+
  | Class1a.siblings(Class)                      | Sequence{Class1b}   |
  +----------------------------------------------+---------------------+


Non-standard *OclAny* operations

  • A note on properties*: properties can be accessed only if they've been added through the API. For this purpose, a number of facilities is provided. You can either override the generated launcher's *addProperties* method and add new paths to properties files there, call manually one of the methods **AcceleoService#addPropertiesFile()** or manually add key/value pairs through **AcceleoService#addProperties()**. Take note that the key/value pairs manually added will *always* take precedence over the properties taken from *.properties* files; and the *first* added property file will always take precedence over subsequently added files.

The example on all four *getProperty* variants will take into account the following setup: we provided the environment with a properties file *a.properties* containing the key/value pair:

::

  a.b.c = This is a parameterized property: {0}
  
Then we provided it with a file *b.properties* containing the pairs:

::

  a.b.c.d = This is a standard property
  a.b.c = Parameterized property with a name conflict: {0}

current (Integer index) : OclAny

Returns the value of the context *index* ranks above the current context. The following example is explained line by line in the "result" column.

  .. list-table::
     :class: exampletable
     :header-rows: 1
     * - Expression
       - Result
     * - | [for (p: Package |pipe| root.packagedElement)]
         |     [for (c: Class |pipe| p.packagedElement)]
         |         [current(0)/]
         |         [current(1)/]
         |         [current(2)/]
         |     [/for]
         | [/for]
       - | Iterates over all packages of the Model *root*
         | Iterates over all classes of the current package
         | allows access to the current class (equivalent to *c*)
         | allows access to the current package (equivalent to *p*)
         | allows access to *self* as it was before the first **for** loop


current (OclType filter) : OclAny

  This will have the same effect as current(Integer) except that is will return the first context (*self* variable) of
  the given type, at or above the current one.
  The following example is explained line by line in the "result" column.
  .. list-table::
     :class: exampletable
     :header-rows: 1
     * - Expression
       - Result
     * - | [for (p: Package |pipe| root.packagedElement)]
         |     [for (c: Class |pipe| p.packagedElement)]
         |         [current(Class)/]
         |         [current(Package)/]
         |         [current(Model)/]
         |     [/for]
         | [/for]
       - | Iterates over all packages of the Model *root*
         | Iterates over all classes of the current package
         | allows access to the current class (equivalent to *c*)
         | allows access to the current package (equivalent to *p*)
         | allows access to the the *root* **Model**


getProperty (String key) : OclAny

  Returns the value of the property corresponding to the given *key*. Note that parameterized properties will be
  returned "as is" by this operation (parameters are not processed).
  examples:
  .. class:: exampletable
  +--------------------------------------------------+------------------------------------------+
  | Expression                                       | Result                                   |
  +==================================================+==========================================+
  | getProperty('a.b.c')                             | 'This is a parameterized property: {0}'  |
  +--------------------------------------------------+------------------------------------------+
  | getProperty('a.b.c.d')                           | 'This is a standard property'            |
  +--------------------------------------------------+------------------------------------------+
  | getProperty('a.b.c.d.e')                         | null                                     |
  +--------------------------------------------------+------------------------------------------+


getProperty (String key, Sequence(OclAny) parameters) : OclAny

  Returns the value of the property corresponding to the given key, with its parameters substituted with the given
  values if any.
  examples:
  .. class:: exampletable
  +--------------------------------------------------+---------------------------------------------------+
  | Expression                                       | Result                                            |
  +==================================================+===================================================+
  | getProperty('a.b.c', Sequence{'substitution'})   | 'This is a parameterized property: substitution'  |
  +--------------------------------------------------+---------------------------------------------------+
  | getProperty('a.b.c', Sequence{})                 | 'This is a parameterized property: {0}'           |
  +--------------------------------------------------+---------------------------------------------------+
  | getProperty('a.b.c.d', Sequence{'substitution'}) | 'This is a standard property'                     |
  +--------------------------------------------------+---------------------------------------------------+


getProperty (String name, String key) : OclAny

  Returns the value of the property corresponding to the given *key* from a properties file corresponding to the
  given *name*. Note that parameterized properties will be returned as is with this.
  examples:
  .. class:: exampletable
  +--------------------------------------------------+-----------------------------------------------------+
  | Expression                                       | Result                                              |
  +==================================================+=====================================================+
  | getProperty('b.properties', 'a.b.c')             | 'Parameterized property with a name conflict: {0}'  |
  +--------------------------------------------------+-----------------------------------------------------+
  | getProperty('a.properties', 'a.b.c.d')           | |invalid|                                           |
  +--------------------------------------------------+-----------------------------------------------------+


getProperty (String name, String key, Sequence(OclAny) parameters) : OclAny

  Returns the value of the property corresponding to the given *key* from a properties file corresponding to the
  given *name*, with its parameters substituted with the given values if any.
  examples:
  .. class:: exampletable
  +------------------------------------------------------------------+--------------------------------------------------------------+
  | Expression                                                       | Result                                                       |
  +==================================================================+==============================================================+
  | getProperty('b.properties', 'a.b.c', Sequence{'substitution'})   | 'Parameterized property with a name conflict: substitution'  |
  +------------------------------------------------------------------+--------------------------------------------------------------+
  | getProperty('b.properties', 'a.b.c', Sequence{})                 | 'Parameterized property with a name conflict: {0}'           |
  +------------------------------------------------------------------+--------------------------------------------------------------+
  | getProperty('a.properties', 'a.b.c.d', Sequence{'substitution'}) | |invalid|                                                    |
  +------------------------------------------------------------------+--------------------------------------------------------------+


invoke (String class, String method, Sequence(OclAny) arguments ) : OclAny

  Invokes the Java method *method* of class *class* with the given arguments. This will return OclInvalid if the method
  cannot be called in any way (bad arguments, mispelled name, mispelled signature, encapsulation errors, ...). This is
  only intended to be used to call Java methods for now.
  examples:
  .. class:: exampletable
  +------------------------------------------------------------------+---------------------+
  | Expression                                                       | Result              |
  +==================================================================+=====================+
  | invoke('java.lang.String', 'toUpperCase()', Sequence{root.name}) | ROOT                |
  +------------------------------------------------------------------+---------------------+


toString () : String

  Returns the String representation of the receiver.
  examples depend on the "toString()" implementation of *self*. Let's assume it has been changed to return the
  object's name:
  .. class:: exampletable
  +--------------------------------------------------+---------------------+
  | Expression                                       | Result              |
  +==================================================+=====================+
  | Class11.toString()                               | 'Class11'           |
  +--------------------------------------------------+---------------------+


Non-standard *Collection* operations

sep (String separator) : Sequence(OclAny)

  Returns all elements from the source collection separated by an element composed of the String *separator*.
  examples:
  .. class:: exampletable
  +---------------------------------------+-------------------------------------------------------------+
  | Expression                            | Result                                                      |
  +=======================================+=============================================================+
  | package1.eContents().name.sep('2009') | Sequence{'Package11', '2009', 'Class1a', '2009', 'Class1b'} |
  +---------------------------------------+-------------------------------------------------------------+
  | package1.eContents().sep('2009')      | Sequence{Package11, '2009', Class1a, '2009', Class1b}       |
  +---------------------------------------+-------------------------------------------------------------+


filter (OclType type) : Sequence(OclType)

  Filters out of the collection all elements that are not instances
  of the given type or any of its subtypes.
  The returned collection is typed according to *type*.
  Makes it easier to write @select(e | e.oclIsKindOf(type)).oclAsType(type)@.
  
  examples:
  .. class:: exampletable
  +---------------------------------------+------------------------------------+
  | Expression                            | Result                             |
  +=======================================+====================================+
  | package1.eContents().filter(Class)    | Sequence{Class1b, Class1a}         |
  +---------------------------------------+------------------------------------+


reverse () (Only on ordered collections)

  Reverses the order of the collection: the last element becomes the first and
  vice-versa.
  Only available on **ordered collections** (Sequence and OrderedSet).
  
  examples:
  .. class:: exampletable
  +---------------------------------------+-------------------------------------------------------------+
  | Expression                            | Result                                                      |
  +=======================================+=============================================================+
  | OrderedSet {1, 2, 3}                  | OrderedSet {3, 2, 1}                                        |
  +---------------------------------------+-------------------------------------------------------------+
  | Sequence {1, 2, 3}                    | Sequence {3, 2, 1}                                          |
  +---------------------------------------+-------------------------------------------------------------+


lastIndexOf (T elt) : Integer (Only on ordered collections)

  Returns the position of the given element in the collection it is applied to.
  Only available on **ordered collections** (Sequence and OrderedSet).
  
  examples:
  .. class:: exampletable
  +---------------------------------------+------------------------------+
  | Expression                            | Result                       |
  +=======================================+==============================+
  | OrderedSet {1, 2, 1}->lastIndexOf(1)  | 3                            |
  +---------------------------------------+------------------------------+
  | Sequence {1, 2, 3}->lastIndexOf(4)    | -1                           |
  +---------------------------------------+------------------------------+
  | Sequence {1, null}->lastIndexOf(null) | 2                            |
  +---------------------------------------+------------------------------+
  | Sequence {1, 2, 3}->lastIndexOf(null) | -1                           |
  +---------------------------------------+------------------------------+