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Java > Open Source Codes > com > jcorporate > expresso > kernel > util > ClassLoaderComparator


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64
65 package com.jcorporate.expresso.kernel.util;
66
67 /**
68  * Utility class that checks to make sure that the classloader hasn't changed
69  * indicating a context reload took place
70  *
71  * @author Michael Rimov
72  * @version $Revision: 1.4 $ on $Date: 2004/11/17 20:48:17 $
73  */
74
75 public class ClassLoaderComparator {
76
77     protected ClassLoaderComparator() {
78     }
79
80     /**
81      * Checks to make sure an object's classloader is the same as the current
82      * Thread's.
83      *
84      * @param o1 the object to check against.
85      * @return true if the object's classloader is the same as the Thread's.
86      */
87     static public final boolean sameClassLoader(Object JavaDoc o1) {
88         ClassLoader JavaDoc current = Thread.currentThread().getContextClassLoader();
89         ClassLoader JavaDoc other = o1.getClass().getClassLoader();
90
91         if (current == null && other == null) {
92             return true;
93         } else if (current == null || other == null) {
94             return false;
95         }
96
97         return other.equals(current);
98     }
99 }
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