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/*******************************************************************************
* Copyright (c) 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
*******************************************************************************/
/*
* Created on Jan 22, 2005
*/
package org.eclipse.jst.j2ee.navigator.internal;
import java.util.Comparator;
import org.eclipse.jst.j2ee.ejb.EnterpriseBean;
import org.eclipse.jst.j2ee.internal.ejb.provider.J2EEJavaClassProviderHelper;
public class J2EEComparator implements Comparator {
private J2EEViewerSorter j2eeViewSorter = new J2EEViewerSorter();
/*
* (non-Javadoc)
*
* @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
*/
public int compare(Object o1, Object o2) {
J2EEJavaClassProviderHelper providerHelperLeftArg = null;
J2EEJavaClassProviderHelper providerHelperRightArg = null;
if (o1 instanceof J2EEJavaClassProviderHelper)
providerHelperLeftArg = (J2EEJavaClassProviderHelper) o1;
if (o2 instanceof J2EEJavaClassProviderHelper)
providerHelperRightArg = (J2EEJavaClassProviderHelper) o2;
/* if both arguments are J2EEJavaClassProviderHelpers */
if (providerHelperLeftArg != null && providerHelperRightArg != null)
return providerHelperLeftArg.getText().compareTo(providerHelperRightArg.getText());
/* if exactly one of the arguments are J2EEJavaClassProviderHelpers */
else if (providerHelperLeftArg != null && o2 instanceof EnterpriseBean)
return 1;
else if (providerHelperRightArg != null && o1 instanceof EnterpriseBean)
return -1;
return j2eeViewSorter.compare(null, o1, o2);
}
/*
* (non-Javadoc)
*
* @see java.util.Comparator#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
return obj instanceof J2EEComparator;
}
@Override
public int hashCode() {
return J2EEComparator.class.hashCode();
}
}
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