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Java > Open Source Codes > org > apache > tapestry > util > io > IntegerAdaptor


1 // Copyright 2004, 2005 The Apache Software Foundation
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 package org.apache.tapestry.util.io;
16
17 import org.apache.tapestry.services.DataSqueezer;
18
19 /**
20  * Squeezes a {@link Integer}. This adaptor claims all the digits as prefix
21  * characters, so its the very simplest conversion of all!
22  *
23  * @author Howard Lewis Ship
24  *
25  **/
26
27 class IntegerAdaptor implements ISqueezeAdaptor
28 {
29     /**
30      * Registers this adaptor using all nine digits and the minus sign.
31      *
32      **/
33
34     public void register(DataSqueezer squeezer)
35     {
36         squeezer.register("-0123456789", Integer JavaDoc.class, this);
37     }
38
39     /**
40      * Simply invokes <code>toString()</code> on the data,
41      * which is actually type {@link Integer}.
42      *
43      **/
44
45     public String JavaDoc squeeze(DataSqueezer squeezer, Object JavaDoc data)
46     {
47         return data.toString();
48     }
49
50     /**
51      * Constructs an {@link Integer} from the string.
52      *
53      **/
54
55     public Object JavaDoc unsqueeze(DataSqueezer squeezer, String JavaDoc string)
56     {
57         return new Integer JavaDoc(string);
58     }
59
60 }
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