org.eclipse.persistence.internal.sessions.coordination.ConnectToHostCommand Maven / Gradle / Ivy
Show all versions of eclipselink Show documentation
/*******************************************************************************
* Copyright (c) 1998, 2013 Oracle and/or its affiliates. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.internal.sessions.coordination;
import org.eclipse.persistence.internal.sessions.AbstractSession;
import org.eclipse.persistence.sessions.coordination.RemoteCommandManager;
/**
*
* Purpose: This class provides an implementation of an internal RCM Command.
*
* Description: This command is used by the RCM when it receives a connection
* from a remote service. It adds the connection to its own list, and then sends this command
* back to the remote service to establish the backward connection from the remote service to
* this service, accompanying the command with a reference to this own service id. The
* remote service can then create a connection using the service id stored in the command and
* add the connection to its connection list.
*
* @see org.eclipse.persistence.sessions.coordination.TransportManager
* @author Steven Vo
* @since OracleAS TopLink 10g (9.0.4)
*/
public class ConnectToHostCommand extends RCMCommand {
/**
* INTERNAL:
* Executed on the RCM when received. Just add the remote object reference to
* the connection list.
*/
public void executeWithRCM(RemoteCommandManager rcm) {
RemoteConnection connection = rcm.getTransportManager().createConnection(this.getServiceId());
// null is returned from createConnection if connection cannot be created
if (connection != null) {
rcm.getTransportManager().getConnectionsToExternalServices().put(connection.getServiceId().getId(), connection);
}
}
public void executeWithSession(AbstractSession session) {
// Internal RCM commands do not implement this method
}
}