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, software
013     * distributed under the License is distributed on an "AS IS" BASIS,
014     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015     * See the License for the specific language governing permissions and
016     * limitations under the License.
017     */
018    
019    package org.apache.hadoop.mapreduce.lib.db;
020    
021    import java.util.Date;
022    
023    import org.apache.hadoop.classification.InterfaceAudience;
024    import org.apache.hadoop.classification.InterfaceStability;
025    
026    /**
027     * Implement DBSplitter over date/time values returned by an Oracle db.
028     * Make use of logic from DateSplitter, since this just needs to use
029     * some Oracle-specific functions on the formatting end when generating
030     * InputSplits.
031     */
032    @InterfaceAudience.Public
033    @InterfaceStability.Evolving
034    public class OracleDateSplitter extends DateSplitter {
035    
036      @SuppressWarnings("unchecked")
037      @Override
038      protected String dateToString(Date d) {
039        // Oracle Data objects are always actually Timestamps
040        return "TO_TIMESTAMP('" + d.toString() + "', 'YYYY-MM-DD HH24:MI:SS.FF')";
041      }
042    }