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org.apache.commons.jexl.util.AbstractExecutor |
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1 | /* |
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2 | * Copyright 2000-2001,2004 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.jexl.util; |
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18 | ||
19 | ||
20 | import java.lang.reflect.InvocationTargetException; |
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21 | import java.lang.reflect.Method; |
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22 | ||
23 | import org.apache.commons.logging.Log; |
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24 | ||
25 | /** |
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26 | * Abstract class that is used to execute an arbitrary |
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27 | * method that is in introspected. This is the superclass |
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28 | * for the GetExecutor and PropertyExecutor. |
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29 | * |
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30 | * @since 1.0 |
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31 | * @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a> |
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32 | * @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a> |
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33 | * @version $Id: AbstractExecutor.java 398171 2006-04-29 14:57:29Z dion $ |
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34 | */ |
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35 | 54 | public abstract class AbstractExecutor { |
36 | /** The executor instance log. */ |
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37 | 27 | protected Log rlog = null; |
38 | ||
39 | /** |
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40 | * Method to be executed. |
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41 | */ |
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42 | 27 | protected Method method = null; |
43 | ||
44 | /** |
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45 | * Execute method against context. |
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46 | * |
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47 | * @param o The owner. |
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48 | * @return The return value. |
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49 | * @throws IllegalAccessException Method is inaccessible. |
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50 | * @throws InvocationTargetException Method body throws an exception. |
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51 | */ |
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52 | public abstract Object execute(Object o) |
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53 | throws IllegalAccessException, InvocationTargetException; |
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54 | ||
55 | /** |
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56 | * Tell whether the executor is alive by looking |
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57 | * at the value of the method. |
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58 | * |
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59 | * @return boolean Whether the executor is alive. |
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60 | */ |
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61 | public boolean isAlive() { |
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62 | 46 | return (method != null); |
63 | } |
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64 | ||
65 | /** |
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66 | * Get the method to be executed. |
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67 | * |
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68 | * @return Method The method to be executed. |
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69 | */ |
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70 | public Method getMethod() { |
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71 | 0 | return method; |
72 | } |
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73 | } |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |