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 Integer}. This adaptor claims all the digits as prefix characters, so its the 021 * very simplest conversion of all! 022 * 023 * @author Howard Lewis Ship 024 */ 025 026public class IntegerAdaptor implements SqueezeAdaptor 027{ 028 029 public String getPrefix() 030 { 031 return "-0123456789"; 032 } 033 034 public Class getDataClass() 035 { 036 return Integer.class; 037 } 038 039 /** 040 * Simply invokes <code>toString()</code> on the data, which is actually type {@link Integer}. 041 */ 042 043 public String squeeze(DataSqueezer squeezer, Object data) 044 { 045 return data.toString(); 046 } 047 048 /** 049 * Constructs an {@link Integer} from the string. 050 */ 051 052 public Object unsqueeze(DataSqueezer squeezer, String string) 053 { 054 return new Integer(string); 055 } 056 057}