PersistenceUnit (Java EE 5 SDK)

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摘要: REQUIRED | OPTIONAL	详细信息: ELEMENT

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javax.persistence Annotation Type PersistenceUnit

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@Target(value={TYPE,METHOD,FIELD})
@Retention(value=RUNTIME)
public @interface PersistenceUnit

Expresses a dependency on an EntityManagerFactory.

从以下版本开始:

Java Persistence 1.0

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Optional Element Summary
String	name           The name by which the entity manager factory is to be accessed in the environment referencing context, and is not needed when dependency injection is used.
String	unitName           The name of the persistence unit as defined in the persistence.xml file.

 

name

public abstract String name

The name by which the entity manager factory is to be accessed in the environment referencing context, and is not needed when dependency injection is used.

默认值:

""

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unitName

public abstract String unitName

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.

默认值:

""

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概述  软件包   类  树  已过时  索引  帮助		Java EE 5 SDK 深圳电信培训中心.徐海蛟老师.
上一个类   下一个类	框架    无框架
摘要: REQUIRED | OPTIONAL	详细信息: ELEMENT

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