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Difference between revisions of "EclipseLink/Examples/JPA/Configure"
< EclipseLink | Examples | JPA
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* Persistence.xml - which defines your persistence units and should be in the meta-inf/ | * Persistence.xml - which defines your persistence units and should be in the meta-inf/ | ||
| − | < | + | <source lang="xml"> |
<persistence-unit name="default" transaction-type="RESOURCE_LOCAL"> | <persistence-unit name="default" transaction-type="RESOURCE_LOCAL"> | ||
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider> | <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider> | ||
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<!-- By default your mappings can be defined in orm.xml file, --> | <!-- By default your mappings can be defined in orm.xml file, --> | ||
<!-- which is discovered automatically. --> | <!-- which is discovered automatically. --> | ||
| − | <mapping-file>META-INF/ | + | <mapping-file>META-INF/my-mappings.xml</mapping-file> |
... | ... | ||
| − | <jar-file> | + | <jar-file>my-additional-jar.jar</jar-file> |
... | ... | ||
<exclude-unlisted-classes>false</exclude-unlisted-classes> | <exclude-unlisted-classes>false</exclude-unlisted-classes> | ||
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</properties> | </properties> | ||
</persistence-unit> | </persistence-unit> | ||
| − | </ | + | </source> |
* Entities, Embeddable and MappedSuperclasses | * Entities, Embeddable and MappedSuperclasses | ||
** These classes should be decorated with the necessary annotations, and/or | ** These classes should be decorated with the necessary annotations, and/or | ||
Revision as of 14:42, 23 June 2008
To use JPA you will need to have the following configurations available:
- Persistence.xml - which defines your persistence units and should be in the meta-inf/
<persistence-unit name="default" transaction-type="RESOURCE_LOCAL"> <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider> <!-- By default your mappings can be defined in orm.xml file, --> <!-- which is discovered automatically. --> <mapping-file>META-INF/my-mappings.xml</mapping-file> ... <jar-file>my-additional-jar.jar</jar-file> ... <exclude-unlisted-classes>false</exclude-unlisted-classes> <properties> ... </properties> </persistence-unit>
- Entities, Embeddable and MappedSuperclasses
- These classes should be decorated with the necessary annotations, and/or
- Be defined in the orm.xml (or some other mapping file) using the XML descriptors.
- Properties - use these properties to further configure your JPA application.
- javax.persistence.transactionType - Standard JPA PersistenceUnitTransactionType property, JTA or RESOURCE_LOCAL.
- javax.persistence.jtaDataSource - Standard JPA JTA DataSource name.
- javax.persistence.nonJtaDataSource - Standard JPA non-JTA DataSource name.
See Developing JPA Projects in the EclipseLinkUser's Guide for details.