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org.apache.commons.jelly.tags.swing.model.ExpressionTableColumn |
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1 | /* |
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2 | * Copyright 2002,2004 The Apache Software Foundation. |
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3 | * |
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4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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5 | * you may not use this file except in compliance with the License. |
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6 | * You may obtain a copy of the License at |
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7 | * |
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8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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9 | * |
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10 | * Unless required by applicable law or agreed to in writing, software |
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11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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13 | * See the License for the specific language governing permissions and |
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14 | * limitations under the License. |
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15 | */ |
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16 | package org.apache.commons.jelly.tags.swing.model; |
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17 | ||
18 | import javax.swing.table.TableColumn; |
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19 | ||
20 | import org.apache.commons.jelly.JellyContext; |
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21 | import org.apache.commons.jelly.expression.Expression; |
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22 | ||
23 | import org.apache.commons.logging.Log; |
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24 | import org.apache.commons.logging.LogFactory; |
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25 | ||
26 | /** |
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27 | * Represents a column in an ExpressionTable |
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28 | * |
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29 | * @author <a href="mailto:jstrachan@apache.org">James Strachan</a> |
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30 | * @version $Revision: 155420 $ |
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31 | */ |
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32 | public class ExpressionTableColumn extends TableColumn { |
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33 | ||
34 | /** The Log to which logging calls will be made. */ |
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35 | 0 | private static final Log log = LogFactory.getLog( ExpressionTableColumn.class ); |
36 | ||
37 | private Expression value; |
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38 | 0 | private Class type = Object.class; |
39 | ||
40 | 0 | public ExpressionTableColumn() { |
41 | 0 | } |
42 | ||
43 | public String toString() { |
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44 | 0 | return super.toString() + "[value:" + value + "]"; |
45 | } |
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46 | ||
47 | /** |
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48 | * Evaluates the value of a cell |
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49 | */ |
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50 | public Object evaluateValue(ExpressionTableModel model, Object row, int rowIndex, class="keyword">int columnIndex) { |
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51 | 0 | if (value == null) { |
52 | 0 | return null; |
53 | } |
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54 | // lets put the values in the context |
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55 | 0 | JellyContext context = model.getContext(); |
56 | 0 | context.setVariable("rows", model.getRows()); |
57 | 0 | context.setVariable("columns", model.getColumnList()); |
58 | 0 | context.setVariable("row", row); |
59 | 0 | context.setVariable("rowIndex", new Integer(rowIndex)); |
60 | 0 | context.setVariable("columnIndex", new Integer(columnIndex)); |
61 | ||
62 | // now lets invoke the expression |
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63 | try { |
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64 | 0 | return value.evaluateRecurse(context); |
65 | } |
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66 | 0 | catch (RuntimeException e) { |
67 | 0 | log.warn( "Caught exception: " + e + " evaluating: " + value, e ); |
68 | 0 | throw e; |
69 | } |
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70 | } |
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71 | ||
72 | // Properties |
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73 | //------------------------------------------------------------------------- |
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74 | ||
75 | /** |
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76 | * Returns the column type. |
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77 | * @return Class |
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78 | */ |
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79 | public Class getType() { |
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80 | 0 | return type; |
81 | } |
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82 | ||
83 | /** |
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84 | * Returns the expression used to extract the value. |
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85 | * @return Expression |
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86 | */ |
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87 | public Expression getValue() { |
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88 | 0 | return value; |
89 | } |
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90 | ||
91 | /** |
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92 | * Sets the expression used to extract the value. |
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93 | * @param type The type to set |
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94 | */ |
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95 | public void setType(Class type) { |
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96 | 0 | this.type = type; |
97 | 0 | } |
98 | ||
99 | /** |
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100 | * Sets the value. |
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101 | * @param value The value to set |
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102 | */ |
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103 | public void setValue(Expression value) { |
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104 | 0 | this.value = value; |
105 | 0 | } |
106 | ||
107 | } |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |