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/*******************************************************************************
* 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.team.internal.core.subscribers;
import org.eclipse.core.resources.IResource;
/**
* A set that contains a group of related changes
*/
public abstract class ChangeSet {
private String name;
/**
* Create a change set with no name. Subclasses
* that create a change set in this manner should
* provide a name before the set is used by other clients.
*/
protected ChangeSet() {
super();
}
/**
* Create a change set with the given name.
* @param name the name of the change set
*/
public ChangeSet(String name) {
this.name = name;
}
/**
* Return the resources that are contained in this set.
* @return the resources that are contained in this set
*/
public abstract IResource[] getResources();
/**
* Return whether the set contains any files.
* @return whether the set contains any files
*/
public abstract boolean isEmpty();
/**
* Return true if the given file is included in this set.
* @param local a local file
* @return true if the given file is included in this set
*/
public abstract boolean contains(IResource local);
/**
* Remove the resource from the set.
* @param resource the resource to be removed
*/
public abstract void remove(IResource resource);
/**
* Remove the resources from the set.
* @param resources the resources to be removed
*/
public void remove(IResource[] resources) {
for (int i = 0; i < resources.length; i++) {
IResource resource = resources[i];
remove(resource);
}
}
/**
* Remove the resource and it's descendants to the given depth.
* @param resource the resource to be removed
* @param depth the depth of the removal (one of
* <code>IResource.DEPTH_ZERO, IResource.DEPTH_ONE, IResource.DEPTH_INFINITE)</code>
*/
public abstract void rootRemoved(IResource resource, int depth);
/**
* Return a comment describing the change.
* @return a comment describing the change
*/
public abstract String getComment();
/**
* Return the name assigned to this set. The name should be
* unique.
* @return the name assigned to this set
*/
public String getName() {
return name;
}
/**
* Set the name of the change set. The name of a change
* set can be changed but it is up to subclass to notify
* any interested partied of the name change.
* @param name the new name for the set
*/
protected void setName(String name) {
this.name = name;
}
/**
* Return whether the set contains descendants of the given resource
* to the given depth.
* @param resource the resource
* @param depth the depth
* @return whether the set contains descendants of the given resource
* to the given depth
*/
public abstract boolean containsChildren(IResource resource, int depth);
}
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