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Difference between revisions of "EDT:EGL Language Primitive Types"

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−
Please see the parent of this page, [[EDT:EGL_Language]].
+
Please see the parent of this page, [[EDT:EGL Language]].  
  
 
== Primitive Types (Table 3)  ==
 
== Primitive Types (Table 3)  ==
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|-
 
|-
 
| bgcolor="#999999" align="center" | '''''Primitive Types'''''  
 
| bgcolor="#999999" align="center" | '''''Primitive Types'''''  
 +
| bgcolor="#999999" align="center" | '''Value or Reference?'''
 
| bgcolor="#999999" align="center" | '''Core'''  
 
| bgcolor="#999999" align="center" | '''Core'''  
 
| bgcolor="#999999" align="center" | '''JavaScript<br>[https://bugs.eclipse.org/bugs/show_bug.cgi?id=352019 Nullable Types]<br>'''  
 
| bgcolor="#999999" align="center" | '''JavaScript<br>[https://bugs.eclipse.org/bugs/show_bug.cgi?id=352019 Nullable Types]<br>'''  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Any''  
 
| bgcolor="#cccccc" | ''Any''  
 +
| reference
 
| <br>  
 
| <br>  
 
| <br>  
 
| <br>  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Boolean''  
 
| bgcolor="#cccccc" | ''Boolean''  
 +
| value<sup>8</sup>
 
| <br>  
 
| <br>  
 
| done<br>  
 
| done<br>  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Dictionary''  
 
| bgcolor="#cccccc" | ''Dictionary''  
 +
| reference
 
| <br>  
 
| <br>  
 
| [https://bugs.eclipse.org/bugs/show_bug.cgi?id=352020 Dictionary Support]<br>  
 
| [https://bugs.eclipse.org/bugs/show_bug.cgi?id=352020 Dictionary Support]<br>  
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| <br>
 
| <br>
 
|-
 
|-
−
| bgcolor="#cccccc" | ''String(N)<sup>1</sup>''
+
| bgcolor="#cccccc" | ''String(N)''
 +
| <span style="background: none repeat scroll 0% 0% rgb(255, 165, 0);">reference</span>  
 
| <br>  
 
| <br>  
 
| <br>  
 
| <br>  
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| <br>
 
| <br>
 
|-
 
|-
−
| bgcolor="#cccccc" | ''String<sup>2</sup>''
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| bgcolor="#cccccc" | ''String''
 +
| <span style="background: none repeat scroll 0% 0% rgb(255, 165, 0);">reference</span>  
 
| <br>  
 
| <br>  
 
| done<br>  
 
| done<br>  
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| <br>
 
| <br>
 
|-
 
|-
−
| bgcolor="#cccccc" | ''Timestamp(''pattern'')<sup>3</sup>''  
+
| bgcolor="#cccccc" | ''Timestamp(''pattern'')<sup>1</sup>''  
 +
| value<sup>8</sup>
 
| <br>  
 
| <br>  
 
| <br>  
 
| <br>  
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| <br>
 
| <br>
 
|-
 
|-
−
| bgcolor="#cccccc" | ''Timestamp<sup>3, 8</sup>''
+
| bgcolor="#cccccc" | ''Timestamp''<sup>''1,6''</sup>  
 +
| <span style="background: none repeat scroll 0% 0% rgb(255, 165, 0);">reference</span>
 
| <br>  
 
| <br>  
 
| <br>  
 
| <br>  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Blob''  
 
| bgcolor="#cccccc" | ''Blob''  
 +
| reference
 
| <br>  
 
| <br>  
 
| N/S<br>  
 
| N/S<br>  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Clob''  
 
| bgcolor="#cccccc" | ''Clob''  
 +
| reference
 
| <br>  
 
| <br>  
 
| N/S<br>  
 
| N/S<br>  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Smallint''  
 
| bgcolor="#cccccc" | ''Smallint''  
 +
| value<sup>8</sup>
 
| <br>  
 
| <br>  
 
| done<br>  
 
| done<br>  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Int''  
 
| bgcolor="#cccccc" | ''Int''  
 +
| value<sup>8</sup>
 
| <br>  
 
| <br>  
 
| done<br>  
 
| done<br>  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Bigint''  
 
| bgcolor="#cccccc" | ''Bigint''  
 +
| value<sup>8</sup>
 
| <br>  
 
| <br>  
 
| done<br>  
 
| done<br>  
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| <br>
 
| <br>
 
|-
 
|-
−
| bgcolor="#cccccc" | ''Decimal(N,M)<sup>9</sup>''
+
| bgcolor="#cccccc" | ''Decimal(N,M)''<sup>''7''</sup>
 +
| value<sup>8</sup>  
 
| <br>  
 
| <br>  
 
| done<br>  
 
| done<br>  
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| <br>
 
| <br>
 
|-
 
|-
−
| bgcolor="#cccccc" | ''Decimal<sup>4</sup>''  
+
| bgcolor="#cccccc" | ''Decimal<sup>2</sup><sup></sup>''  
 +
| reference
 
| <br>  
 
| <br>  
 
| done<br>  
 
| done<br>  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Float''  
 
| bgcolor="#cccccc" | ''Float''  
 +
| value<sup>8</sup>
 
| <br>  
 
| <br>  
 
| done<br>  
 
| done<br>  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Smallfloat''  
 
| bgcolor="#cccccc" | ''Smallfloat''  
 +
| value<sup>8</sup>
 
| <br>  
 
| <br>  
 
| done<br>  
 
| done<br>  
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| <br>
 
| <br>
 
|-
 
|-
−
| bgcolor="#cccccc" | ''Number<sup>5</sup>''
+
| bgcolor="#cccccc" | ''Number''<sup>''3''</sup>  
 +
| <span style="background: none repeat scroll 0% 0% rgb(255, 165, 0);">reference</span>
 
| <br>  
 
| <br>  
 
| done<br>  
 
| done<br>  
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| <br>
 
| <br>
 
|-
 
|-
−
| bgcolor="#cccccc" | ''Bytes(N)<sup>6</sup>''
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| bgcolor="#cccccc" | ''Bytes(N)''<sup>''4''</sup>
 +
| value<sup>8</sup>  
 
| <br>  
 
| <br>  
 
| <br>  
 
| <br>  
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| <br>
 
| <br>
 
|-
 
|-
−
| bgcolor="#cccccc" | ''Bytes<sup>7</sup>''
+
| bgcolor="#cccccc" | ''Bytes''<sup>''5''</sup>  
 +
| reference
 
| <br>  
 
| <br>  
 
| <br>  
 
| <br>  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Arraydictionary''<br>  
 
| bgcolor="#cccccc" | ''Arraydictionary''<br>  
 +
|
 
| <br>  
 
| <br>  
 
| N/S  
 
| N/S  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Char''<br>  
 
| bgcolor="#cccccc" | ''Char''<br>  
 +
|
 
| <br>  
 
| <br>  
 
| N/S  
 
| N/S  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Dbchar''<br>  
 
| bgcolor="#cccccc" | ''Dbchar''<br>  
 +
|
 
| <br>  
 
| <br>  
 
| N/S  
 
| N/S  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Mbchar''<br>  
 
| bgcolor="#cccccc" | ''Mbchar''<br>  
 +
|
 
| <br>  
 
| <br>  
 
| N/S  
 
| N/S  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Unicode''<br>  
 
| bgcolor="#cccccc" | ''Unicode''<br>  
 +
|
 
| <br>  
 
| <br>  
 
| N/S  
 
| N/S  
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| N/S
 
| N/S
 
|-
 
|-
−
| bgcolor="#cccccc" | ''Hex<sup>6</sup>''<br>  
+
| bgcolor="#cccccc" | ''Hex''<sup>''4''</sup><br>  
 +
|
 
| <br>  
 
| <br>  
 
| N/S  
 
| N/S  
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| N/S
 
| N/S
 
|-
 
|-
−
| bgcolor="#cccccc" | ''Date<sup>3</sup>''<br>  
+
| bgcolor="#cccccc" | ''Date''<sup>''1''</sup><br>  
 +
|
 
| <br>  
 
| <br>  
 
| N/S  
 
| N/S  
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| N/S
 
| N/S
 
|-
 
|-
−
| bgcolor="#cccccc" | ''Time<sup>3</sup>''<br>  
+
| bgcolor="#cccccc" | ''Time''<sup>''1''</sup><br>  
 +
|
 
| <br>  
 
| <br>  
 
| N/S  
 
| N/S  
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| N/S
 
| N/S
 
|-
 
|-
−
| bgcolor="#cccccc" | ''Interval<sup>3</sup>''<br>  
+
| bgcolor="#cccccc" | ''Interval''<sup>''1''</sup><br>  
 +
|
 
| <br>  
 
| <br>  
 
| N/S  
 
| N/S  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Bin''<br>  
 
| bgcolor="#cccccc" | ''Bin''<br>  
 +
|
 
| <br>  
 
| <br>  
 
| N/S  
 
| N/S  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Num''<br>  
 
| bgcolor="#cccccc" | ''Num''<br>  
 +
|
 
| <br>  
 
| <br>  
 
| N/S  
 
| N/S  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Numc''<br>  
 
| bgcolor="#cccccc" | ''Numc''<br>  
 +
|
 
| <br>  
 
| <br>  
 
| N/S  
 
| N/S  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Pacf''<br>  
 
| bgcolor="#cccccc" | ''Pacf''<br>  
 +
|
 
| <br>  
 
| <br>  
 
| N/S  
 
| N/S  
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|-
 
|-
 
| bgcolor="#cccccc" | ''Money''<br>  
 
| bgcolor="#cccccc" | ''Money''<br>  
 +
|
 
| <br>  
 
| <br>  
 
| N/S  
 
| N/S  
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'''Notes on Table 3'''<br>  
 
'''Notes on Table 3'''<br>  
  
−
#<span style="background: none repeat scroll 0% 0% rgb(255, 165, 0);">String(N) is a reference type in EDT.</span>
 
−
#<span style="background: none repeat scroll 0% 0% rgb(255, 165, 0);">String is a reference type in EDT.</span>
 
 
#Timestamp is the only supported date/time type. Use it in place of RBD's date, time, and interval.  
 
#Timestamp is the only supported date/time type. Use it in place of RBD's date, time, and interval.  
−
#<span style="background: none repeat scroll 0% 0% rgb(255, 165, 0);">Decimal with no length or decimals is a reference type with an immutable value.</span>
+
#Decimal with no length or decimals is a reference type with an immutable value.
 
#<span style="background: none repeat scroll 0% 0% rgb(255, 165, 0);">Number is a reference type with an immutable value. Unlike in RBD, number variables can be declared anywhere a variable declaration is allowed.</span>  
 
#<span style="background: none repeat scroll 0% 0% rgb(255, 165, 0);">Number is a reference type with an immutable value. Unlike in RBD, number variables can be declared anywhere a variable declaration is allowed.</span>  
 
#Bytes(N) is a value type similar to RBD's hex. N indicates the number of bytes in the value. (In RBD, the length of a hex is the number of nibbles not the nubmer of bytes.)  
 
#Bytes(N) is a value type similar to RBD's hex. N indicates the number of bytes in the value. (In RBD, the length of a hex is the number of nibbles not the nubmer of bytes.)  
 
#Bytes with no length is a reference type with an immutable value of any length.<br>  
 
#Bytes with no length is a reference type with an immutable value of any length.<br>  
 
#<span style="background: none repeat scroll 0% 0% rgb(255, 165, 0);">Timestamp with no pattern is a reference type in EDT.&nbsp; It can hold any timestamp value.</span>  
 
#<span style="background: none repeat scroll 0% 0% rgb(255, 165, 0);">Timestamp with no pattern is a reference type in EDT.&nbsp; It can hold any timestamp value.</span>  
−
#As in RBD, it's OK to only specify the length when using the decimal type. Decimal(N) is internally mapped to decimal(N,0).
+
#As in RBD, it's OK to only specify the length when using the decimal type. Decimal(N) is internally mapped to decimal(N,0).
 +
#Value types may be nullable.
  
 
=== More about the Bytes type  ===
 
=== More about the Bytes type  ===

Revision as of 10:47, 18 July 2011

Please see the parent of this page, EDT:EGL Language.

Primitive Types (Table 3)

Primitive Types Value or Reference? Core JavaScript
Nullable Types
 		Java Debug
Any reference



Boolean value8
done

Dictionary reference
Dictionary Support

String(N) reference



String reference
done

Timestamp(pattern)1 value8



Timestamp1,6 reference



Blob reference
N/S

Clob reference
N/S

Smallint value8
done

Int value8
done

Bigint value8
done

Decimal(N,M)7 value8
done

Decimal2 reference
done

Float value8
done

Smallfloat value8
done

Number3 reference
done

Bytes(N)4 value8



Bytes5 reference



Arraydictionary
N/S N/S N/S
Char
N/S N/S N/S
Dbchar
N/S N/S N/S
Mbchar
N/S N/S N/S
Unicode
N/S N/S N/S
Hex4
N/S N/S N/S
Date1
N/S N/S N/S
Time1
N/S N/S N/S
Interval1
N/S N/S N/S
Bin
N/S N/S N/S
Num
N/S N/S N/S
Numc
N/S N/S N/S
Pacf
N/S N/S N/S
Money
N/S N/S N/S

Notes on Table 3

  1. Timestamp is the only supported date/time type. Use it in place of RBD's date, time, and interval.
  2. Decimal with no length or decimals is a reference type with an immutable value.
  3. Number is a reference type with an immutable value. Unlike in RBD, number variables can be declared anywhere a variable declaration is allowed.
  4. Bytes(N) is a value type similar to RBD's hex. N indicates the number of bytes in the value. (In RBD, the length of a hex is the number of nibbles not the nubmer of bytes.)
  5. Bytes with no length is a reference type with an immutable value of any length.
  6. Timestamp with no pattern is a reference type in EDT.  It can hold any timestamp value.
  7. As in RBD, it's OK to only specify the length when using the decimal type. Decimal(N) is internally mapped to decimal(N,0).
  8. Value types may be nullable.

More about the Bytes type

Bytes is meant to hold data with no particular format.

Assignment between two bytes values with no length is a reference assignment. Assignment between two bytes values when one or both has a length is a value assignment (data is copied). If the source is longer bytes on its right side are truncated. If the source is shorter then we don't add padding: we just don't update what was there before. For example if your bytes(3) is 0x123456 and you assign it a bytes(1) value of 0x99 then the bytes(3) ends up with 0x993456.

In order for two bytes values to be compared, they must both have a size, and the sizes must be equal. The comparison is done one byte at a time, from left to right, until a difference is found. The operand with a one instead of a zero is greater.

The bytes type supports the substring operator. The type of the result is bytes (with no length).

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