01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17:
18: package org.apache.cocoon.components.elementprocessor.impl.poi.hssf.elements;
19:
20: import org.apache.cocoon.components.elementprocessor.types.NumericConverter;
21: import org.apache.cocoon.components.elementprocessor.types.NumericResult;
22:
23: import java.io.IOException;
24:
25: /**
26: * No-op implementation of ElementProcessor to handle the "UIData" tag
27: *
28: * This element contains no data and has an attribute, SelectedTab,
29: * that indicates which sheet is currently selected
30: *
31: * This element is not used in HSSFSerializer 1.0
32: *
33: * @author Marc Johnson (marc_johnson27591@hotmail.com)
34: * @version CVS $Id: EPUIData.java 433543 2006-08-22 06:22:54Z crossley $
35: */
36: public class EPUIData extends BaseElementProcessor {
37: private NumericResult _selected_tab;
38: private static final String _selected_tab_attribute = "SelectedTab";
39:
40: /**
41: * constructor
42: */
43: public EPUIData() {
44: super (null);
45: _selected_tab = null;
46: }
47:
48: /**
49: * Get the selected tab
50: * @return the number of the currently selected sheet (tab)
51: * @exception IOException if the value is missing or incorrectly written
52: */
53: public int getSelectedTab() throws IOException {
54: if (_selected_tab == null) {
55: _selected_tab = NumericConverter
56: .extractNonNegativeInteger(getValue(_selected_tab_attribute));
57: }
58: return _selected_tab.intValue();
59: }
60: } // end public class EPUIData
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