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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.
*
* 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.
*
*
The session bean instance should store the reference to the
* context object in an instance variable.
*
*
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.
*
*
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 ejbPassivate method.
*
*
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 ejbActivate method.
*
*
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.
*
*
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;
}