1 /** 2 * JDBM LICENSE v1.00 3 * 4 * Redistribution and use of this software and associated documentation 5 * ("Software"), with or without modification, are permitted provided 6 * that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain copyright 9 * statements and notices. Redistributions must also contain a 10 * copy of this document. 11 * 12 * 2. Redistributions in binary form must reproduce the 13 * above copyright notice, this list of conditions and the 14 * following disclaimer in the documentation and/or other 15 * materials provided with the distribution. 16 * 17 * 3. The name "JDBM" must not be used to endorse or promote 18 * products derived from this Software without prior written 19 * permission of Cees de Groot. For written permission, 20 * please contact cg@cdegroot.com. 21 * 22 * 4. Products derived from this Software may not be called "JDBM" 23 * nor may "JDBM" appear in their names without prior written 24 * permission of Cees de Groot. 25 * 26 * 5. Due credit should be given to the JDBM Project 27 * (http://jdbm.sourceforge.net/). 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE JDBM PROJECT AND CONTRIBUTORS 30 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT 31 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 32 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 33 * CEES DE GROOT OR ANY CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 34 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 35 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 36 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 38 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 39 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 40 * OF THE POSSIBILITY OF SUCH DAMAGE. 41 * 42 * Copyright 2001 (C) Alex Boisvert. All Rights Reserved. 43 * Contributions are Copyright (C) 2001 by their associated contributors. 44 * 45 */ 46 47 package jdbm.helper; 48 49 import java.io.IOException; 50 51 /** 52 * Optimized serializer for long integers. 53 * 54 * @author <a href="mailto:boisvert@intalio.com">Alex Boisvert</a> 55 * @version $Id: LongSerializer.java,v 1.2 2003/09/21 15:47:00 boisvert Exp $ 56 */ 57 public class LongSerializer 58 implements Serializer 59 { 60 61 62 public static final LongSerializer INSTANCE = new LongSerializer(); 63 64 65 /** 66 * Construct a LongSerializer. 67 */ 68 public LongSerializer() 69 { 70 // no op 71 } 72 73 74 /** 75 * Serialize the content of an object into a byte array. 76 * 77 * @param obj Object to serialize 78 * @return a byte array representing the object's state 79 */ 80 public byte[] serialize( Object obj ) 81 throws IOException 82 { 83 Long number = (Long) obj; 84 return Conversion.convertToByteArray( number.longValue() ); 85 } 86 87 88 /** 89 * Deserialize the content of an object from a byte array. 90 * 91 * @param serialized Byte array representation of the object 92 * @return deserialized object 93 */ 94 public Object deserialize( byte[] serialized ) 95 throws IOException 96 { 97 long number = Conversion.convertToLong( serialized ); 98 return new Long( number ); 99 } 100 101 }