PersistenceUnit

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Summary:
Field |
Required |
Optional

Detail:
Field |
Element

```
@Repeatable(value=PersistenceUnits.class)
 @Target(value={TYPE,METHOD,FIELD})
 @Retention(value=RUNTIME)
public @interface PersistenceUnit
```
Expresses a dependency on an EntityManagerFactory and its associated persistence unit.

Since:

1.0

Examples (en):

reload-persistence-unit-properties, persistence-fragment, mvc-cxf, mvc-cxf-hibernate, groovy-jpa, ejb-examples

Examples (es):

groovy-jpa

Examples (pt):

reload-persistence-unit-properties, persistence-fragment, mvc-cxf-hibernate, groovy-jpa

Optional Element Summary

Optional Elements
Modifier and Type	Optional Element and Description
`java.lang.String`	`name` (Optional) The name by which the entity manager factory is to be accessed in the environment referencing context; not needed when dependency injection is used.
`java.lang.String`	`unitName` (Optional) The name of the persistence unit as defined in the `persistence.xml` file.

- Element Detail
  - name
```
public abstract java.lang.String name
```
    (Optional) The name by which the entity manager factory is to be accessed in the environment referencing context; not needed when dependency injection is used.
    
    Default:
    
    ""
- - unitName
```
public abstract java.lang.String unitName
```
    (Optional) The name of the persistence unit as defined in the persistence.xml file. If specified, the persistence unit for the entity manager factory that is accessible in JNDI must have the same name.
    
    Default:
    
    ""

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Summary:
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Detail:
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