001    package org.apache.torque.engine.database.model;
002    
003    /*
004     * Licensed to the Apache Software Foundation (ASF) under one
005     * or more contributor license agreements.  See the NOTICE file
006     * distributed with this work for additional information
007     * regarding copyright ownership.  The ASF licenses this file
008     * to you under the Apache License, Version 2.0 (the
009     * "License"); you may not use this file except in compliance
010     * with the License.  You may obtain a copy of the License at
011     *
012     *   http://www.apache.org/licenses/LICENSE-2.0
013     *
014     * Unless required by applicable law or agreed to in writing,
015     * software distributed under the License is distributed on an
016     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017     * KIND, either express or implied.  See the License for the
018     * specific language governing permissions and limitations
019     * under the License.
020     */
021    
022    /**
023     * Interface for various ID retrieval method types.
024     * This currently includes native, ID broker, and none.
025     *
026     * @author <a href="mailto:dlr@collab.net">Daniel Rall</a>
027     * @version $Id: IDMethod.java,v 1.1 2007-10-21 07:57:27 abyrne Exp $
028     */
029    public interface IDMethod
030    {
031        /**
032         * Key generation via database-specific ID method.
033         * For example, this would be auto-increment for MySQL,
034         * sequence for Oracle, etc.
035         */
036        String NATIVE = "native";
037    
038        /**
039         * Key generation via the IDBroker table.
040         */
041        String ID_BROKER = "idbroker";
042    
043        /**
044         * No RDBMS key generation (keys may be generated by the
045         * application).
046         */
047        String NO_ID_METHOD = "none";
048    }