/*******************************************************************************
 * Copyright (c) 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.core.resources.mapping;

import org.eclipse.core.resources.*;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;

/**
 * This factory is used to build a resource delta that represents a proposed change
 * that can then be passed to the {@link ResourceChangeValidator#validateChange(IResourceDelta, IProgressMonitor)}
 * method in order to validate the change with any model providers stored in those resources.
 * The deltas created by calls to the methods of this interface will be the same as 
 * those generated by the workspace if the proposed operations were performed.
 * <p>
 * This factory does not validate that the proposed operation is valid given the current
 * state of the resources and any other proposed changes. It only records the
 * delta that would result.
 * <p>
 * This interface is not intended to be implemented by clients.
 * </p>
 * 
 * @see ResourceChangeValidator
 * @see ModelProvider
 * @since 3.2
 */
public interface IResourceChangeDescriptionFactory {

	/**
	 * Record a delta that represents a content change for the given file.
	 * @param file the file whose contents will be changed
	 */
	public void change(IFile file);

	/**
	 *  Record the set of deltas representing the closed of a project.
	 * @param project the project that will be closed
	 */
	public void close(IProject project);

	/**
	 * Record the set of deltas representing a copy of the given resource to the
	 * given workspace path. 
	 * @param resource the resource that will be copied
	 * @param destination the full workspace path of the destination the resource is being copied to
	 */
	public void copy(IResource resource, IPath destination);

	/**
	 * Record a delta that represents a resource being created.
	 * @param resource the resource that is created
	 */
	public void create(IResource resource);

	/**
	 * Record the set of deltas representing a deletion of the given resource.
	 * @param resource the resource that will be deleted
	 */
	public void delete(IResource resource);

	/**
	 * Return the proposed delta that has been accumulated by this factory.
	 * @return the proposed delta that has been accumulated by this factory
	 */
	public IResourceDelta getDelta();

	/**
	 * Record the set of deltas representing a move of the given resource to the
	 * given workspace path. Note that this API is used to describe a resource
	 * being moved to another path in the workspace, rather than a move in the
	 * file system. 
	 * @param resource the resource that will be moved
	 * @param destination the full workspace path of the destination the resource is being moved to
	 */
	public void move(IResource resource, IPath destination);

}
