ServiceLocator.java

/*
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 * Copyright 2009-11, Red Hat Middleware LLC, and others contributors as indicated
 * by the @authors tag. All rights reserved.
 * See the copyright.txt in the distribution for a
 * full listing of individual contributors.
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 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU Lesser General Public License, v. 2.1.
 * This program is distributed in the hope that it will be useful, but WITHOUT A
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public License,
 * v.2.1 along with this distribution; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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 */
package org.riftsaw.engine;

import javax.xml.namespace.QName;

/**
 * This interface provides access to external services that can be used
 * by the BPEL processes.
 *
 */
public interface ServiceLocator {

    /**
     * This method returns the service associated with the supplied
     * service and port name.
     * 
     * @param processName The calling process name
     * @param serviceName The service name
     * @param portName The port name
     * @return The service associated with the supplied serviceName/portName,
     *                     or null if not found
     */
    public Service getService(QName processName, QName serviceName, String portName);
    
}