EJBLocalObject (JBoss J2EE API) - JBoss 3.2.7 j2ee API Documentation 英文版文档

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javax.ejb
Interface EJBLocalObject

public interface EJBLocalObject

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

getEJBLocalHome

public 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.

getPrimaryKey

public 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.

remove

public 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.

isIdentical

public 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.