| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.compare.structuremergeviewer; |
| |
| /** |
| * Interface used to compare hierarchical structures. |
| * It is used by the differencing engine. |
| * <p> |
| * Clients typically implement this interface in an adaptor class which |
| * wrappers the objects to be compared. |
| * |
| * @see org.eclipse.compare.ResourceNode |
| * @see Differencer |
| */ |
| public interface IStructureComparator { |
| |
| /** |
| * Returns an iterator for all children of this object or <code>null</code> |
| * if there are no children. |
| * |
| * @return an array with all children of this object, or an empty array if there are no children |
| */ |
| Object[] getChildren(); |
| |
| /** |
| * Returns whether some other object is "equal to" this one |
| * with respect to a structural comparison. For example, when comparing |
| * Java class methods, <code>equals</code> would return <code>true</code> |
| * if two methods have the same signature (the argument names and the |
| * method body might differ). |
| * |
| * @param other the reference object with which to compare |
| * @return <code>true</code> if this object is the same as the other argument; <code>false</code> otherwise |
| * @see java.lang.Object#equals |
| */ |
| boolean equals(Object other); |
| } |
