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}