001    /*
002     *  Licensed to the Apache Software Foundation (ASF) under one
003     *  or more contributor license agreements.  See the NOTICE file
004     *  distributed with this work for additional information
005     *  regarding copyright ownership.  The ASF licenses this file
006     *  to you under the Apache License, Version 2.0 (the
007     *  "License"); you may not use this file except in compliance
008     *  with the License.  You may obtain a copy of the License at
009     *  
010     *    http://www.apache.org/licenses/LICENSE-2.0
011     *  
012     *  Unless required by applicable law or agreed to in writing,
013     *  software distributed under the License is distributed on an
014     *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     *  KIND, either express or implied.  See the License for the
016     *  specific language governing permissions and limitations
017     *  under the License. 
018     *  
019     */
020    package org.apache.directory.server.protocol.shared.store;
021    
022    
023    import java.io.Serializable;
024    
025    import org.apache.directory.server.core.CoreSession;
026    import org.apache.directory.shared.ldap.name.DN;
027    
028    
029    /**
030     * Interface to support the command pattern for LDAP operations.
031     *
032     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
033     * @version $Rev$, $Date$
034     */
035    public interface DirectoryServiceOperation extends Serializable
036    {
037        /**
038         * The command pattern execute method.
039         * 
040         * @param session The CoreSession to execute the command with
041         * @param baseDn The base DN for working with the context
042         * @return Object The result returned by the command
043         * @throws Exception The exception thrown by the command
044         */
045        public Object execute( CoreSession session, DN baseDn ) throws Exception;
046    }