| /******************************************************************************* |
| * 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.tasks.core.data; |
| |
| import org.eclipse.core.runtime.Assert; |
| |
| /** |
| * @author Steffen Pingel |
| * @since 3.0 |
| */ |
| public class TaskRelation { |
| |
| private final String taskId; |
| |
| private final Kind kind; |
| |
| private final Direction direction; |
| |
| /** |
| * @since 3.0 |
| */ |
| public enum Direction { |
| INWARD, OUTWARD |
| }; |
| |
| /** |
| * @since 3.0 |
| */ |
| public enum Kind { |
| CONTAINMENT, DEPENDENCY, DUPLICATE |
| } |
| |
| private TaskRelation(Kind kind, Direction direction, String taskId) { |
| Assert.isNotNull(kind); |
| Assert.isNotNull(direction); |
| Assert.isNotNull(taskId); |
| this.kind = kind; |
| this.direction = direction; |
| this.taskId = taskId; |
| } |
| |
| /** |
| * @since 3.0 |
| */ |
| public String getTaskId() { |
| return taskId; |
| } |
| |
| /** |
| * @since 3.0 |
| */ |
| public Kind getKind() { |
| return kind; |
| } |
| |
| /** |
| * @since 3.0 |
| */ |
| public Direction getDirection() { |
| return direction; |
| } |
| |
| /** |
| * @since 3.0 |
| */ |
| public static TaskRelation parentTask(String taskId) { |
| return new TaskRelation(Kind.CONTAINMENT, Direction.INWARD, taskId); |
| } |
| |
| /** |
| * @since 3.0 |
| */ |
| public static TaskRelation subtask(String taskId) { |
| return new TaskRelation(Kind.CONTAINMENT, Direction.OUTWARD, taskId); |
| } |
| |
| /** |
| * @since 3.0 |
| */ |
| public static TaskRelation dependency(String taskId, Direction direction) { |
| return new TaskRelation(Kind.DEPENDENCY, direction, taskId); |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + direction.hashCode(); |
| result = prime * result + kind.hashCode(); |
| result = prime * result + taskId.hashCode(); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj == null) { |
| return false; |
| } |
| if (getClass() != obj.getClass()) { |
| return false; |
| } |
| TaskRelation other = (TaskRelation) obj; |
| return direction.equals(other.direction) && kind.equals(other.kind) && taskId.equals(other.taskId); |
| } |
| } |