javax.ejb.spi.HandleDelegate Maven / Gradle / Ivy
/*
* The contents of this file are subject to the terms
* of the Common Development and Distribution License
* (the License). You may not use this file except in
* compliance with the License.
*
* You can obtain a copy of the license at
* https://glassfish.dev.java.net/public/CDDLv1.0.html or
* glassfish/bootstrap/legal/CDDLv1.0.txt.
* See the License for the specific language governing
* permissions and limitations under the License.
*
* When distributing Covered Code, include this CDDL
* Header Notice in each file and include the License file
* at glassfish/bootstrap/legal/CDDLv1.0.txt.
* If applicable, add the following below the CDDL Header,
* with the fields enclosed by brackets [] replaced by
* you own identifying information:
* "Portions Copyrighted [year] [name of copyright owner]"
*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
*/
package javax.ejb.spi;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.io.ObjectInputStream;
import javax.ejb.EJBObject;
import javax.ejb.EJBHome;
/**
* The HandleDelegate interface is implemented by the EJB container.
* It is used by portable implementations of javax.ejb.Handle and
* javax.ejb.HomeHandle.
* It is not used by EJB components or by client components.
* It provides methods to serialize and deserialize EJBObject and
* EJBHome references to streams.
*
* The HandleDelegate object is obtained by JNDI lookup at the
* reserved name "java:comp/HandleDelegate".
*/
public interface HandleDelegate {
/**
* Serialize the EJBObject reference corresponding to a Handle.
*
*
This method is called from the writeObject method of
* portable Handle implementation classes. The ostream object is the
* same object that was passed in to the Handle class's writeObject.
*
* @param ejbObject The EJBObject reference to be serialized.
*
* @param ostream The output stream.
*
* @exception IOException The EJBObject could not be serialized
* because of a system-level failure.
*/
public void writeEJBObject(EJBObject ejbObject, ObjectOutputStream ostream)
throws IOException;
/**
* Deserialize the EJBObject reference corresponding to a Handle.
*
*
readEJBObject is called from the readObject method of
* portable Handle implementation classes. The istream object is the
* same object that was passed in to the Handle class's readObject.
* When readEJBObject is called, istream must point to the location
* in the stream at which the EJBObject reference can be read.
* The container must ensure that the EJBObject reference is
* capable of performing invocations immediately after deserialization.
*
* @param istream The input stream.
*
* @return The deserialized EJBObject reference.
*
* @exception IOException The EJBObject could not be deserialized
* because of a system-level failure.
* @exception ClassNotFoundException The EJBObject could not be deserialized
* because some class could not be found.
*/
public javax.ejb.EJBObject readEJBObject(ObjectInputStream istream)
throws IOException, ClassNotFoundException;
/**
* Serialize the EJBHome reference corresponding to a HomeHandle.
*
*
This method is called from the writeObject method of
* portable HomeHandle implementation classes. The ostream object is the
* same object that was passed in to the Handle class's writeObject.
*
* @param ejbHome The EJBHome reference to be serialized.
*
* @param ostream The output stream.
*
* @exception IOException The EJBObject could not be serialized
* because of a system-level failure.
*/
public void writeEJBHome(EJBHome ejbHome, ObjectOutputStream ostream)
throws IOException;
/**
* Deserialize the EJBHome reference corresponding to a HomeHandle.
*
*
readEJBHome is called from the readObject method of
* portable HomeHandle implementation classes. The istream object is the
* same object that was passed in to the HomeHandle class's readObject.
* When readEJBHome is called, istream must point to the location
* in the stream at which the EJBHome reference can be read.
* The container must ensure that the EJBHome reference is
* capable of performing invocations immediately after deserialization.
*
* @param istream The input stream.
*
* @return The deserialized EJBHome reference.
*
* @exception IOException The EJBHome could not be deserialized
* because of a system-level failure.
* @exception ClassNotFoundException The EJBHome could not be deserialized
* because some class could not be found.
*/
public javax.ejb.EJBHome readEJBHome(ObjectInputStream istream)
throws IOException, ClassNotFoundException;
}