Java tutorial
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If you don't indicate a single choice of license, a * recipient has the option to distribute your version of this file under * either the CDDL, the GPL Version 2 or to extend the choice of license to * its licensees as provided above. However, if you add GPL Version 2 code * and therefore, elected the GPL Version 2 license, then the option applies * only if the new code is made subject to such option by the copyright * holder. */ package javax.ejb; import java.rmi.RemoteException; /** * The SessionBean interface defines methods that the EJB container uses * to notify a session bean instance of the instance's life cycle events. * <p> * As of EJB 3.0 it is no longer required that a session bean class * implement this interface. * * @since EJB 1.0 */ public interface SessionBean extends EnterpriseBean { /** * Set the associated session context. The container calls this method * after the instance creation. * * <p> The session bean instance should store the reference to the * context object in an instance variable. * * <p> This method is called with no transaction context. * * @param ctx A SessionContext interface for the instance. * * @exception EJBException Thrown by the method to indicate a failure * caused by a system-level error. * * @exception RemoteException This exception is defined in the method * signature to provide backward compatibility for applications written * for the EJB 1.0 specification. Enterprise beans written for the * EJB 1.1 specification should throw the * javax.ejb.EJBException instead of this exception. * Enterprise beans written for the EJB2.0 and higher specifications * must throw the javax.ejb.EJBException instead of this exception. */ void setSessionContext(SessionContext ctx) throws EJBException, RemoteException; /** * A container invokes this method before it ends the life of the session * object. This happens as a result of a client's invoking a remove * operation, or when a container decides to terminate the session object * after a timeout. * * <p> This method is called with no transaction context. * * @exception EJBException Thrown by the method to indicate a failure * caused by a system-level error. * * @exception RemoteException This exception is defined in the method * signature to provide backward compatibility for enterprise beans * written for the EJB 1.0 specification. Enterprise beans written * for the EJB 1.1 specification should throw the * javax.ejb.EJBException instead of this exception. * Enterprise beans written for the EJB2.0 and higher specifications * must throw the javax.ejb.EJBException instead of this exception. */ void ejbRemove() throws EJBException, RemoteException; /** * The activate method is called when a stateful session bean instance is activated * from its "passive" state. The instance should acquire any resource * that it has released earlier in the <code>ejbPassivate</code> method. * * <p> This method is called with no transaction context. * * @exception EJBException Thrown by the method to indicate a failure * caused by a system-level error. * * @exception RemoteException This exception is defined in the method * signature to provide backward compatibility for enterprise beans * written for the EJB 1.0 specification. Enterprise beans written * for the EJB 1.1 specification should throw the * javax.ejb.EJBException instead of this exception. * Enterprise beans written for the EJB2.0 and higher specifications * must throw the javax.ejb.EJBException instead of this exception. */ void ejbActivate() throws EJBException, RemoteException; /** * The passivate method is called before a stateful session bean instance enters * the "passive" state. The instance should release any resources that * it can re-acquire later in the <code>ejbActivate</code> method. * * <p> After the passivate method completes, the instance must be * in a state that allows the container to use the Java Serialization * protocol to externalize and store away the instance's state. * * <p> This method is called with no transaction context. * * @exception EJBException Thrown by the method to indicate a failure * caused by a system-level error. * * @exception RemoteException This exception is defined in the method * signature to provide backward compatibility for enterprise beans * written for the EJB 1.0 specification. Enterprise beans written * for the EJB 1.1 specification should throw the * javax.ejb.EJBException instead of this exception. * Enterprise beans written for the EJB2.0 and higher specifications * must throw the javax.ejb.EJBException instead of this exception. */ void ejbPassivate() throws EJBException, RemoteException; }