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This plug-in contains the bulk of the Workbench implementation, and depends on JFace, SWT, and Core Runtime. It cannot be used independently from org.eclipse.ui. Workbench client plug-ins should not depend directly on this plug-in.

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/*******************************************************************************
 * Copyright (c) 2000, 2006 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.ui.dialogs;

/**
 *	Implementors of this interface answer one of the prescribed return codes
 *	when asked whether to overwrite a certain path string (which could
 *	represent a resource path, a file system path, etc).
 */
public interface IOverwriteQuery {
    /**
     * Return code indicating the operation should be canceled.
     */
    public static final String CANCEL = "CANCEL"; //$NON-NLS-1$

    /**
     * Return code indicating the entity should not be overwritten, 
     * but operation should not be canceled.
     */
    public static final String NO = "NO"; //$NON-NLS-1$

    /**
     * Return code indicating the entity should be overwritten.
     */
    public static final String YES = "YES"; //$NON-NLS-1$

    /**
     * Return code indicating the entity should be overwritten, 
     * and all subsequent entities should be overwritten without prompting.
     */
    public static final String ALL = "ALL"; //$NON-NLS-1$

    /**
     * Return code indicating the entity should not be overwritten, 
     * and all subsequent entities should not be overwritten without prompting.
     */
    public static final String NO_ALL = "NOALL"; //$NON-NLS-1$

    /**
     * Returns one of the return code constants declared on this interface,
     * indicating whether the entity represented by the passed String should be overwritten.
     * 
     * This method may be called from a non-UI thread, in which case this method must run the query
     * in a sync exec in the UI thread, if it needs to query the user.
     * 
     * @param pathString the path representing the entity to be overwritten
     * @return one of the return code constants declared on this interface
     */
    String queryOverwrite(String pathString);
}