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org.apache.commons.jelly.tags.core.RemoveTag |
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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.core; |
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17 | ||
18 | import org.apache.commons.jelly.MissingAttributeException; |
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19 | import org.apache.commons.jelly.TagSupport; |
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20 | import org.apache.commons.jelly.XMLOutput; |
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21 | import org.apache.commons.jelly.expression.Expression; |
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22 | ||
23 | /** |
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24 | * A tag which removes the variable of the given name from the current variable scope. |
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25 | * |
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26 | * @author <a href="mailto:jstrachan@apache.org">James Strachan</a> |
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27 | * @version $Revision: 1.5 $ |
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28 | */ |
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29 | public class RemoveTag extends TagSupport { |
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30 | ||
31 | private Expression var; |
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32 | ||
33 | 2 | public RemoveTag() { |
34 | 2 | } |
35 | ||
36 | // Tag interface |
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37 | //------------------------------------------------------------------------- |
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38 | public void doTag(XMLOutput output) throws MissingAttributeException { |
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39 | 2 | if (var != null) { |
40 | 2 | context.removeVariable( var.evaluateAsString(context) ); |
41 | } |
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42 | else { |
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43 | 0 | throw new MissingAttributeException("var"); |
44 | } |
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45 | 2 | } |
46 | ||
47 | // Properties |
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48 | //------------------------------------------------------------------------- |
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49 | ||
50 | /** |
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51 | * Sets the name of the variable which will be removed by this tag.. |
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52 | */ |
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53 | public void setVar(Expression var) { |
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54 | 2 | this.var = class="keyword">var; |
55 | 2 | } |
56 | } |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |