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/*******************************************************************************
* Copyright (c) 2004, 2008 Tasktop Technologies 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:
* Tasktop Technologies - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.internal.tasks.core;
import org.eclipse.mylyn.tasks.core.IRepositoryElement;
import org.eclipse.mylyn.tasks.core.ITaskContainer;
/**
* Immutable. Defines changes to Task List elements.
*
* @author Mik Kersten
* @since 2.0
*/
public final class TaskContainerDelta {
public enum Kind {
/**
* One container (source) added to another (target)
*/
ADDED,
/**
* One container (source) removed from another (target)
*/
REMOVED,
/**
* The internal state of the container (target) has changed, e.g. attributes, summary, priority, etc
*/
CONTENT,
/**
* The element has been deleted from the tasklist
*/
DELETED,
/**
* The root of the data structure has changed.
*/
ROOT
}
private final ITaskContainer parent;
private final IRepositoryElement element;
private final Kind kind;
private boolean isTransient;
/**
* @param element
* - object being moved/added/removed, source assumed to be root
* @since 3.0
*/
public TaskContainerDelta(IRepositoryElement element, Kind kind) {
this.element = element;
this.parent = null;
this.kind = kind;
}
/**
* @since 3.0
*/
public TaskContainerDelta(IRepositoryElement element, ITaskContainer parent, Kind kind) {
this.element = element;
this.parent = parent;
this.kind = kind;
}
/**
* The <code>target</code> is the container that the <code>source</code> is being moved from/to
*
* @since 3.0
*/
public ITaskContainer getParent() {
return parent;
}
/**
* The element being ADDED or REMOVED wrt the <code>target</code>
*
* @since 3.0
*/
public IRepositoryElement getElement() {
return element;
}
public Kind getKind() {
return kind;
}
/**
* @since 3.0
*/
public void setTransient(boolean isTransient) {
this.isTransient = isTransient;
}
/**
* @since 3.0
*/
public boolean isTransient() {
return isTransient;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
builder.append("TaskContainerDelta [parent="); //$NON-NLS-1$
builder.append(parent);
builder.append(", element="); //$NON-NLS-1$
builder.append(element);
builder.append(", kind="); //$NON-NLS-1$
builder.append(kind);
builder.append(", isTransient="); //$NON-NLS-1$
builder.append(isTransient);
builder.append("]"); //$NON-NLS-1$
return builder.toString();
}
}
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