| /******************************************************************************* |
| * Copyright (c) 2000, 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.ui.internal.activities; |
| |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.eclipse.ui.activities.CategoryEvent; |
| import org.eclipse.ui.activities.ICategory; |
| import org.eclipse.ui.activities.ICategoryActivityBinding; |
| import org.eclipse.ui.activities.ICategoryListener; |
| import org.eclipse.ui.activities.NotDefinedException; |
| import org.eclipse.ui.internal.util.Util; |
| |
| final class Category implements ICategory { |
| private final static int HASH_FACTOR = 89; |
| |
| private final static int HASH_INITIAL = Category.class.getName().hashCode(); |
| |
| private final static Set strongReferences = new HashSet(); |
| |
| private Set categoryActivityBindings; |
| |
| private transient ICategoryActivityBinding[] categoryActivityBindingsAsArray; |
| |
| private List categoryListeners; |
| |
| private boolean defined; |
| |
| private transient int hashCode = HASH_INITIAL; |
| |
| private String id; |
| |
| private String name; |
| |
| private transient String string; |
| |
| private String description; |
| |
| Category(String id) { |
| if (id == null) { |
| throw new NullPointerException(); |
| } |
| |
| this.id = id; |
| } |
| |
| public void addCategoryListener(ICategoryListener categoryListener) { |
| if (categoryListener == null) { |
| throw new NullPointerException(); |
| } |
| |
| if (categoryListeners == null) { |
| categoryListeners = new ArrayList(); |
| } |
| |
| if (!categoryListeners.contains(categoryListener)) { |
| categoryListeners.add(categoryListener); |
| } |
| |
| strongReferences.add(this); |
| } |
| |
| public int compareTo(Object object) { |
| Category castedObject = (Category) object; |
| int compareTo = Util.compare( |
| categoryActivityBindingsAsArray, |
| castedObject.categoryActivityBindingsAsArray); |
| |
| if (compareTo == 0) { |
| compareTo = Util.compare(defined, castedObject.defined); |
| |
| if (compareTo == 0) { |
| compareTo = Util.compare(id, castedObject.id); |
| |
| if (compareTo == 0) { |
| compareTo = Util.compare(name, castedObject.name); |
| } |
| } |
| } |
| |
| return compareTo; |
| } |
| |
| public boolean equals(Object object) { |
| if (!(object instanceof Category)) { |
| return false; |
| } |
| |
| final Category castedObject = (Category) object; |
| if (!Util.equals(categoryActivityBindings, |
| castedObject.categoryActivityBindings)) { |
| return false; |
| } |
| |
| if (!Util.equals(defined, castedObject.defined)) { |
| return false; |
| } |
| |
| if (!Util.equals(id, castedObject.id)) { |
| return false; |
| } |
| |
| return Util.equals(name, castedObject.name); |
| } |
| |
| void fireCategoryChanged(CategoryEvent categoryEvent) { |
| if (categoryEvent == null) { |
| throw new NullPointerException(); |
| } |
| |
| if (categoryListeners != null) { |
| for (int i = 0; i < categoryListeners.size(); i++) { |
| ((ICategoryListener) categoryListeners.get(i)) |
| .categoryChanged(categoryEvent); |
| } |
| } |
| } |
| |
| public Set getCategoryActivityBindings() { |
| return categoryActivityBindings; |
| } |
| |
| public String getId() { |
| return id; |
| } |
| |
| public String getName() throws NotDefinedException { |
| if (!defined) { |
| throw new NotDefinedException(); |
| } |
| |
| return name; |
| } |
| |
| public int hashCode() { |
| if (hashCode == HASH_INITIAL) { |
| hashCode = hashCode * HASH_FACTOR |
| + Util.hashCode(categoryActivityBindings); |
| hashCode = hashCode * HASH_FACTOR + Util.hashCode(defined); |
| hashCode = hashCode * HASH_FACTOR + Util.hashCode(id); |
| hashCode = hashCode * HASH_FACTOR + Util.hashCode(name); |
| if (hashCode == HASH_INITIAL) { |
| hashCode++; |
| } |
| } |
| |
| return hashCode; |
| } |
| |
| public boolean isDefined() { |
| return defined; |
| } |
| |
| public void removeCategoryListener(ICategoryListener categoryListener) { |
| if (categoryListener == null) { |
| throw new NullPointerException(); |
| } |
| |
| if (categoryListeners != null) { |
| categoryListeners.remove(categoryListener); |
| } |
| |
| if (categoryListeners.isEmpty()) { |
| strongReferences.remove(this); |
| } |
| } |
| |
| boolean setCategoryActivityBindings(Set categoryActivityBindings) { |
| categoryActivityBindings = Util.safeCopy(categoryActivityBindings, |
| ICategoryActivityBinding.class); |
| |
| if (!Util.equals(categoryActivityBindings, |
| this.categoryActivityBindings)) { |
| this.categoryActivityBindings = categoryActivityBindings; |
| this.categoryActivityBindingsAsArray = (ICategoryActivityBinding[]) this.categoryActivityBindings |
| .toArray(new ICategoryActivityBinding[this.categoryActivityBindings |
| .size()]); |
| hashCode = HASH_INITIAL; |
| string = null; |
| return true; |
| } |
| |
| return false; |
| } |
| |
| boolean setDefined(boolean defined) { |
| if (defined != this.defined) { |
| this.defined = defined; |
| hashCode = HASH_INITIAL; |
| string = null; |
| return true; |
| } |
| |
| return false; |
| } |
| |
| boolean setName(String name) { |
| if (!Util.equals(name, this.name)) { |
| this.name = name; |
| hashCode = HASH_INITIAL; |
| string = null; |
| return true; |
| } |
| |
| return false; |
| } |
| |
| public String toString() { |
| if (string == null) { |
| final StringBuffer stringBuffer = new StringBuffer(); |
| stringBuffer.append('['); |
| stringBuffer.append(categoryActivityBindings); |
| stringBuffer.append(','); |
| stringBuffer.append(defined); |
| stringBuffer.append(','); |
| stringBuffer.append(id); |
| stringBuffer.append(','); |
| stringBuffer.append(name); |
| stringBuffer.append(']'); |
| string = stringBuffer.toString(); |
| } |
| |
| return string; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.activities.ICategory#getDescription() |
| */ |
| public String getDescription() throws NotDefinedException { |
| if (!defined) { |
| throw new NotDefinedException(); |
| } |
| |
| return description; |
| } |
| |
| public boolean setDescription(String description) { |
| if (!Util.equals(description, this.description)) { |
| this.description = description; |
| hashCode = HASH_INITIAL; |
| string = null; |
| return true; |
| } |
| |
| return false; |
| } |
| } |