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org.apache.commons.jelly.tags.threads.UseMutexTag |
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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.threads; |
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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.XMLOutput; |
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22 | ||
23 | /** |
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24 | * Base class for tags that will "use" mutexes. |
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25 | * |
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26 | * @author <a href="mailto:jason@jhorman.org">Jason Horman</a> |
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27 | */ |
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28 | ||
29 | 104 | public abstract class UseMutexTag extends TagSupport { |
30 | /** The mutex to use in some way. */ |
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31 | 52 | private Object mutex = null; |
32 | ||
33 | /** Calls useMutex after checking to make sure that <i>setMutex</i> was called */ |
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34 | public void doTag(XMLOutput output) throws JellyTagException { |
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35 | // either use the set thread or search for a parent thread to use |
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36 | 52 | if (mutex == null) { |
37 | 0 | throw new JellyTagException("no mutex set"); |
38 | } |
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39 | ||
40 | 52 | useMutex(mutex, output); |
41 | 52 | } |
42 | ||
43 | /** Implement this method to do something with the mutex */ |
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44 | protected abstract void useMutex(Object mutex, XMLOutput output) throws JellyTagException; |
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45 | ||
46 | /** Get the mutex */ |
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47 | public Object getMutex() { |
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48 | 0 | return mutex; |
49 | } |
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50 | ||
51 | /** Set the mutex. Any object can be used as a mutex. */ |
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52 | public void setMutex(Object mutex) { |
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53 | 52 | this.mutex = mutex; |
54 | 52 | } |
55 | } |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |