Java tutorial
package org.apache.ojb.broker.accesslayer.conversions; /* Copyright 2002-2005 The Apache Software Foundation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.io.Serializable; import org.apache.commons.lang.SerializationUtils; /** * This implementation of the FieldConversion interface converts * between java.lang.Objects values and byte[] values in the rdbms. * This conversion is useful to store serialized objects in database * columns. */ public class Object2ByteArrUncompressedFieldConversion implements FieldConversion { /* * @see FieldConversion#javaToSql(Object) */ public Object javaToSql(Object source) { if (source == null) return null; try { return SerializationUtils.serialize((Serializable) source); } catch (Throwable t) { throw new ConversionException(t); } } /* * @see FieldConversion#sqlToJava(Object) */ public Object sqlToJava(Object source) { if (source == null) return null; try { return SerializationUtils.deserialize((byte[]) source); } catch (Throwable t) { throw new ConversionException(t); } } }