001    /*
002     * Copyright (c) OSGi Alliance (2001, 2008). All Rights Reserved.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     *      http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    package org.osgi.service.device;
017    
018    import org.osgi.framework.ServiceReference;
019    
020    /**
021     * Instances of <code>Match</code> are used in the {@link DriverSelector#select}
022     * method to identify Driver services matching a Device service.
023     * 
024     * @version $Revision: 5654 $
025     * @since 1.1
026     * @see DriverSelector
027     * @ThreadSafe
028     */
029    public interface Match {
030            /**
031             * Return the reference to a Driver service.
032             * 
033             * @return <code>ServiceReference</code> object to a Driver service.
034             */
035            public ServiceReference getDriver();
036    
037            /**
038             * Return the match value of this object.
039             * 
040             * @return the match value returned by this Driver service.
041             */
042            public int getMatchValue();
043    }