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/*******************************************************************************
* Copyright (c) 2001, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jem.internal.beaninfo.vm;
/*
*/
import java.beans.*;
/**
* Equality tester for BeanDescriptors
*/
public class BeanDescriptorEquality extends FeatureDescriptorEquality {
static void INIT() {
try {
MAP_EQUALITY.put(BeanDescriptor.class, (BeanDescriptorEquality.class).getConstructor(new Class[] {BeanDescriptor.class}));
} catch (NoSuchMethodException e) {
}
}
/**
* Constructor for BeanDescriptorEquality.
*/
public BeanDescriptorEquality() {
super();
}
public BeanDescriptorEquality(BeanDescriptor descr) {
super(descr);
}
/**
* Calculate the hashcode for the current feature, add this
* to the hashcode received from super.calculateHashCode
* and return the new value.
*
* NOTE: for subclasses, it is MANDITORY that the first line be:
* int hashcode = super.calculateHashCode();
* and the last line be:
* return hashcode*31 + (your calculated hashcode for just this subclass);
*/
protected int calculateHashCode() {
int hashcode = super.calculateHashCode();
BeanDescriptor bd = (BeanDescriptor) fFeature;
int hc = bd.getBeanClass().hashCode();
if (bd.getCustomizerClass() != null)
hc += bd.getCustomizerClass().hashCode();
return hashcode*31 + hc;
}
public boolean equals(Object obj) {
if (identityTest(obj))
return true;
if (!super.equals(obj))
return false;
BeanDescriptor ob = (BeanDescriptor) ((FeatureDescriptorEquality) obj).fFeature;
BeanDescriptor fb = (BeanDescriptor) fFeature;
if (ob.getBeanClass() != fb.getBeanClass())
return false;
if (ob.getCustomizerClass() != fb.getCustomizerClass())
return false;
return true;
}
}
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