001// Copyright 2004, 2005 The Apache Software Foundation 002// 003// Licensed under the Apache License, Version 2.0 (the "License"); 004// you may not use this file except in compliance with the License. 005// You may obtain a copy of the License at 006// 007// http://www.apache.org/licenses/LICENSE-2.0 008// 009// Unless required by applicable law or agreed to in writing, software 010// distributed under the License is distributed on an "AS IS" BASIS, 011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012// See the License for the specific language governing permissions and 013// limitations under the License. 014 015package org.apache.tapestry.util.io; 016 017import org.apache.tapestry.services.DataSqueezer; 018 019/** 020 * Squeezes a {@link Byte}. 021 * 022 * @author Howard Lewis Ship 023 */ 024 025public class ByteAdaptor implements SqueezeAdaptor 026{ 027 private static final String PREFIX = "b"; 028 029 public String getPrefix() 030 { 031 return PREFIX; 032 } 033 034 public Class getDataClass() 035 { 036 return Byte.class; 037 } 038 039 /** 040 * Invoked <code>toString()</code> on data (which is type {@link Byte}), and prefixs the 041 * result. 042 */ 043 044 public String squeeze(DataSqueezer squeezer, Object data) 045 { 046 return PREFIX + data.toString(); 047 } 048 049 /** 050 * Constructs an {@link Byte} from the string, after stripping the prefix. 051 */ 052 053 public Object unsqueeze(DataSqueezer squeezer, String string) 054 { 055 return new Byte(string.substring(1)); 056 } 057 058}