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 019package org.apache.oozie.executor.jpa; 020 021import org.apache.oozie.StringBlob; 022import org.apache.openjpa.jdbc.kernel.JDBCStore; 023import org.apache.openjpa.jdbc.meta.ValueMapping; 024 025@SuppressWarnings("serial") 026public class StringBlobValueHandler extends org.apache.openjpa.jdbc.meta.strats.ByteArrayValueHandler { 027 028 private static final StringBlobValueHandler _instance = new StringBlobValueHandler(); 029 030 /** 031 * Singleton instance. 032 */ 033 public static StringBlobValueHandler getInstance() { 034 return _instance; 035 } 036 037 public Object toDataStoreValue(ValueMapping vm, Object val, JDBCStore store) { 038 if (val == null) { 039 return null; 040 } 041 return ((StringBlob) val).getRawBlob(); 042 } 043 044 public Object toObjectValue(ValueMapping vm, Object val) { 045 if (val == null) { 046 return null; 047 } 048 return new StringBlob((byte[]) val); 049 } 050}