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Difference between revisions of "Configuring a Relational Transformation Mapping (ELUG)"
m (New page: This section describes the various components that you must configure in order to use a relational transformation mapping. * For information on how to configure EclipseLink mappings option...) |
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| + | This example shows how to create a transformation mapping and add it to a descriptor using Java code. | ||
| + | |||
| + | <span id="Example 46-1"></span> | ||
| + | ''''' Transformation Mapping''''' | ||
| + | |||
| + | <pre> | ||
| + | public void customize(ClassDescriptor descriptor) { | ||
| + | TransformationMapping mapping = new TransformationMapping(); | ||
| + | |||
| + | // configure mapping | ||
| + | ... | ||
| + | |||
| + | // add mapping to descriptor | ||
| + | descriptor.addMapping(mapping); | ||
| + | } | ||
| + | </pre> | ||
For more information, see the following: | For more information, see the following: | ||
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* [[Introduction%20to%20Relational%20Mappings%20(ELUG)|Transformation Mapping]] | * [[Introduction%20to%20Relational%20Mappings%20(ELUG)|Transformation Mapping]] | ||
* [[Configuring%20a%20Relational%20Mapping%20(ELUG)|Configuring a Relational Mapping]] | * [[Configuring%20a%20Relational%20Mapping%20(ELUG)|Configuring a Relational Mapping]] | ||
| − | + | * [[Creating%20and%20Configuring%20Mappings%20(ELUG)|Creating and Configuring Mappings]] | |
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Revision as of 12:17, 30 November 2007
This section describes the various components that you must configure in order to use a relational transformation mapping.
- For information on how to configure EclipseLink mappings options common to two or more mapping types, see Configuring a Mapping.
- For information on how to create EclipseLink mappings, see Creating a Mapping.
This table lists the configurable options for a relational transformation mapping.
| Option | Workbench | Java |
|---|---|---|
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Attribute transformer (see Configuring Attribute Transformer) |
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Field transformer associations (see Configuring Field Transformer Associations) |
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Indirection (lazy loading) (see Configuring Mapping Comments) |
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| |
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Mapping comments (see Configuring Mapping Comments) |
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Method or direct field access (see Configuring a Type Conversion Converter) |
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Read-only mapping (see Configuring Read-Only Mappings) |
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This example shows how to create a transformation mapping and add it to a descriptor using Java code.
Transformation Mapping
public void customize(ClassDescriptor descriptor) {
TransformationMapping mapping = new TransformationMapping();
// configure mapping
...
// add mapping to descriptor
descriptor.addMapping(mapping);
}
For more information, see the following: