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Difference between revisions of "EclipseLink/Examples/SDO/BasicAPI"
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==EqualityHelper - Compare DataObjects== | ==EqualityHelper - Compare DataObjects== | ||
| + | EqualityHelper provides a convenient means of comparing DataObjects. | ||
| + | <source lang="java"> | ||
| + | EqualityHelper equalityHelper = helperContext.getEqualityHelper(); | ||
| + | </source> | ||
| + | |||
| + | ===Shallow Equal=== | ||
| + | Two DataObjects are considered shallow equal if the data objects are of the same type and all the values of all dataType=true properties (excluding the ChangeSummary property) are equal. | ||
| + | <source lang="java"> | ||
| + | boolean isShallowEqual = equalityHelper.equalShallow(dataObject1, dataObject2); | ||
| + | </source> | ||
| + | |||
| + | ===Deep Equal=== | ||
| + | Two DataObjects are considered deep equal if the data objects and the trees that they belong to are both equal. | ||
| + | <source lang="java"> | ||
| + | boolean isDeepEqual = equalityHelper.equal(dataObject1, dataObject2); | ||
| + | </source> | ||
Revision as of 15:37, 25 February 2009
Contents
HelperContext
TypeHelper - Access Metadata
XSDHelper - Access XML Schema Metadata
DataFactory - Create DataObjects
DataHelper - Convert Simple Values
XMLHelper - Handle XML Data as DataObjects
CopyHelper - Create Copies of DataObjects
EqualityHelper - Compare DataObjects
EqualityHelper provides a convenient means of comparing DataObjects.
EqualityHelper equalityHelper = helperContext.getEqualityHelper();
Shallow Equal
Two DataObjects are considered shallow equal if the data objects are of the same type and all the values of all dataType=true properties (excluding the ChangeSummary property) are equal.
boolean isShallowEqual = equalityHelper.equalShallow(dataObject1, dataObject2);
Deep Equal
Two DataObjects are considered deep equal if the data objects and the trees that they belong to are both equal.
boolean isDeepEqual = equalityHelper.equal(dataObject1, dataObject2);