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/*******************************************************************************
* Copyright (c) 2000, 2008 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.team.core.mapping;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.mapping.ResourceTraversal;
import org.eclipse.team.core.diff.*;
import org.eclipse.team.core.mapping.provider.ResourceDiffTree;
/**
* A resource diff tree provides access to a tree of {@link IDiff} instances
* that either contain {@link IResourceDiff} nodes or {@link IThreeWayDiff}
* nodes that contain {@link IResourceDiff} nodes as the local and remote
* changes. For efficiency reasons, the tree only provides diffs for resources
* that have changes. Resources that do not contain a change but are returned
* from the tree will contain children in the set.
*
* @since 3.2
* @noimplement This interface is not intended to be implemented by clients.
* Clients can use {@link ResourceDiffTree} instead.
*/
public interface IResourceDiffTree extends IDiffTree {
/**
* Return the diff for the given resource. This method is a convenience
* method that uses the path of the resource to access the diff.
*
* @param resource a resource
* @return the diff associated with the resource or <code>null</code> if
* the resource does not have any changes.
*/
IDiff getDiff(IResource resource);
/**
* Return the resource associated with the given diff. This method will only
* return meaningful results for diffs which were obtained from this tree.
*
* @param diff a diff
* @return the resource associated with the given diff
*/
IResource getResource(IDiff diff);
/**
* Visit all diffs in this tree that are covered by the given traversals.
* @param traversals the set of traversals whose diffs are to be visited
* @param visitor a diff visitor
*
*/
void accept(ResourceTraversal[] traversals, IDiffVisitor visitor);
/**
* Return all the diffs in the tree that are contained in the given
* traversals.
*
* @param traversals the traversals
* @return all the diffs in the tree that are contained in the given
* traversals
*/
IDiff[] getDiffs(ResourceTraversal[] traversals);
/**
* Return all the diffs in the tree that are found for
* the given resource when traversed to the given depth.
*
* @param resource the resource
* @param depth the depth
* @return all the diffs in the tree that are found for
* the given resource when traversed to the given depth
*/
IDiff[] getDiffs(IResource resource, int depth);
/**
* Return the members of the given resource that either have diffs in this
* tree of contain descendants that have diffs in this tree.
*
* @param resource a resource
* @return the members of the given resource that either have diffs in this
* tree of contain descendants that have diffs in this tree
*/
IResource[] members(IResource resource);
/**
* Return all resources that contain diffs in this
* diff tree.
* @return all resources that contain diffs in this
* diff tree
*/
IResource[] getAffectedResources();
/**
* Return whether the this diff tree contains any diffs that match the given filter
* within the given traversals.
* @param traversals the traversals
* @param filter the diff node filter
* @return whether the given diff tree contains any deltas that match the given filter
*/
public boolean hasMatchingDiffs(ResourceTraversal[] traversals, final FastDiffFilter filter);
}
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