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| org.apache.commons.jelly.tags.define.DefineTagSupport |
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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 | ||
| 17 | package org.apache.commons.jelly.tags.define; |
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| 18 | ||
| 19 | import org.apache.commons.jelly.JellyTagException; |
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| 20 | import org.apache.commons.jelly.TagSupport; |
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| 21 | import org.apache.commons.jelly.impl.DynamicTagLibrary; |
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| 22 | ||
| 23 | /** |
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| 24 | * An abstract base class useful for implementation inheritence. |
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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: 155420 $ |
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| 28 | */ |
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| 29 | 36 | public abstract class DefineTagSupport extends TagSupport { |
| 30 | ||
| 31 | // Implementation methods |
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| 32 | //------------------------------------------------------------------------- |
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| 33 | ||
| 34 | /** |
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| 35 | * @return the current dynamic tag library instance or throws a JellyException |
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| 36 | * if one is not available |
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| 37 | */ |
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| 38 | protected DynamicTagLibrary getTagLibrary() throws JellyTagException { |
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| 39 | 36 | TaglibTag tag |
| 40 | 9 | = (TaglibTag) findAncestorWithClass(TaglibTag.class); |
| 41 | 36 | if ( tag == null ) { |
| 42 | 0 | throw new JellyTagException( "<define:tag> must be inside <define:taglib>" ); |
| 43 | } |
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| 44 | 36 | return tag.getTagLibrary(); |
| 45 | } |
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| 46 | ||
| 47 | } |
| This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |