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Java > Open Source Codes > org > apache > cocoon > components > elementprocessor > impl > poi > hssf > elements > EPMaxCol


1 /*
2  * Copyright 1999-2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 package org.apache.cocoon.components.elementprocessor.impl.poi.hssf.elements;
18
19 import org.apache.cocoon.components.elementprocessor.types.NumericConverter;
20 import org.apache.cocoon.components.elementprocessor.types.NumericResult;
21
22 import java.io.IOException JavaDoc;
23
24 /**
25  * No-op implementation of ElementProcessor to handle the "MaxCol" tag
26  *
27  * This element contains the maximum number of columns in the
28  * containing sheet. The value is contained in the data.
29  *
30  * @author Marc Johnson (marc_johnson27591@hotmail.com)
31  * @version CVS $Id: EPMaxCol.java 30932 2004-07-29 17:35:38Z vgritsenko $
32  */
33 public class EPMaxCol extends BaseElementProcessor {
34     private NumericResult _max_col;
35
36     /**
37      * constructor
38      */
39     public EPMaxCol() {
40         super(null);
41         _max_col = null;
42     }
43
44     /**
45      * get the maximum column for the containing sheet
46      * @return maximum column number
47      * @exception IOException if the data is malformed
48      */
49     public int getMaxCol() throws IOException JavaDoc {
50         if (_max_col == null) {
51             _max_col = NumericConverter.extractPositiveInteger(getData());
52         }
53         return _max_col.intValue();
54     }
55 } // end public class EPMaxCol
56
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