/*******************************************************************************
* Copyright (c) 2006, 2007 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.core.databinding.observable.list;
/**
* Object describing a diff between two lists.
*
* @since 1.0
*/
public abstract class ListDiff {
/**
* Returns a list of ListDiffEntry
*
* @return a list of ListDiffEntry
*/
public abstract ListDiffEntry[] getDifferences();
/**
* @see java.lang.Object#toString()
*/
public String toString() {
ListDiffEntry[] differences = getDifferences();
StringBuffer buffer = new StringBuffer();
buffer.append(getClass().getName());
if (differences == null || differences.length == 0) {
buffer
.append("{}"); //$NON-NLS-1$
} else {
buffer
.append("{"); //$NON-NLS-1$
for (int i = 0; i < differences.length; i++) {
if (i > 0)
buffer.append(", "); //$NON-NLS-1$
buffer
.append("difference[") //$NON-NLS-1$
.append(i)
.append("] [") //$NON-NLS-1$
.append(differences[i] != null ? differences[i].toString() : "null") //$NON-NLS-1$
.append("]"); //$NON-NLS-1$
}
buffer.append("}"); //$NON-NLS-1$
}
return buffer.toString();
}
}