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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. |