EJBLocalObject (Java EE 5)

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javax.ejb Interface EJBLocalObject

public interface EJBLocalObject

EJBLocalObject 接口必须通过所有企业 Bean 的本地接口扩展。企业 Bean 的本地接口提供 EJB 对象的本地客户端视图。企业 Bean 的本地接口定义了本地客户端可调用的业务方法。

企业 Bean 的本地接口由企业 Bean 提供者定义，由企业 Bean 容器实现。

英文文档：

The EJBLocalObject interface must be extended by all enterprise Beans' local interfaces. An enterprise Bean's local interface provides the local client view of an EJB object. An enterprise Bean's local interface defines the business methods callable by local clients.

The enterprise Bean's local interface is defined by the enterprise Bean provider and implemented by the enterprise Bean container.

Method Summary
`EJBLocalHome`	`getEJBLocalHome()` Obtain the enterprise Bean's local home interface.
`Object`	`getPrimaryKey()` Obtain the primary key of the EJB local object.
`boolean`	`isIdentical(EJBLocalObject obj)` Test if a given EJB local object is identical to the invoked EJB local object.
`void`	`remove()` Remove the EJB local object.

Method Detail

public EJBLocalHome getEJBLocalHome() throws EJBException
获得企业 Bean 的本地 home 接口。本地 home 接口定义本地客户端可用的企业 Bean 的 create、finder、remove 和 home 业务方法。

return 对企业 Bean 的本地 home 接口的引用。

Throws EJBException: 方法由于系统级失败而失败时抛出该异常。

英文文档：
getEJBLocalHome

EJBLocalHome getEJBLocalHome()
                             throws EJBException

Obtain the enterprise Bean's local home interface. The local home interface defines the enterprise Bean's create, finder, remove, and home business methods that are available to local clients.

Returns:: A reference to the enterprise Bean's local home interface.
Throws:: EJBException - Thrown when the method failed due to a system-level failure.

public Object getPrimaryKey() throws EJBException
获得 EJB 本地对象的主键。
可以对实体 Bean 调用此方法。试图对会话 Bean 调用此方法将导致 EJBException。

return EJB 本地对象的主键。

Throws EJBException: 方法由于系统级失败而失败或对会话 Bean 调用此方法时抛出该异常。

英文文档：
getPrimaryKey

Object getPrimaryKey()
                     throws EJBException

Obtain the primary key of the EJB local object.

This method can be called on an entity bean. An attempt to invoke this method on a session Bean will result in an EJBException.

Returns:: The EJB local object's primary key.
Throws:: EJBException - Thrown when the method failed due to a system-level failure or when invoked on a session bean.

public void remove() throws RemoveException, EJBException
移除 EJB 本地对象。

Throws RemoveException: 如果企业 Bean 或容器不允许销毁该对象。

Throws EJBException: 方法由于系统级失败而失败时抛出该异常。

英文文档：
remove

void remove()
            throws RemoveException,
                   EJBException

Remove the EJB local object.

Throws:: RemoveException - The enterprise Bean or the container does not allow destruction of the object.; EJBException - Thrown when the method failed due to a system-level failure.

public boolean isIdentical(EJBLocalObject obj) throws EJBException
测试给定 EJB 本地对象是否与调用的 EJB 本地对象相同。

obj 要与调用对象进行相等性测试的对象。

return 如果给定 EJB 本地对象与调用对象相同，则返回 true；否则返回 false。

Throws EJBException: 方法由于系统级失败而失败时抛出该异常。

英文文档：
isIdentical

boolean isIdentical(EJBLocalObject obj)
                    throws EJBException

Test if a given EJB local object is identical to the invoked EJB local object.

Parameters:: obj - An object to test for identity with the invoked object.
Returns:: True if the given EJB local object is identical to the invoked object, false otherwise.
Throws:: EJBException - Thrown when the method failed due to a system-level failure.