| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.ui.internal.activities; |
| |
| import java.util.regex.Pattern; |
| |
| import org.eclipse.ui.activities.IPatternBinding; |
| import org.eclipse.ui.internal.util.Util; |
| |
| final class PatternBinding implements IPatternBinding { |
| |
| private final static int HASH_FACTOR = 89; |
| private final static int HASH_INITIAL = PatternBinding.class.getName().hashCode(); |
| |
| private boolean inclusive; |
| private Pattern pattern; |
| |
| private transient int hashCode; |
| private transient boolean hashCodeComputed; |
| private transient String string; |
| |
| PatternBinding(boolean inclusive, Pattern pattern) { |
| if (pattern == null) |
| throw new NullPointerException(); |
| |
| this.inclusive = inclusive; |
| this.pattern = pattern; |
| } |
| |
| public int compareTo(Object object) { |
| PatternBinding castedObject = (PatternBinding) object; |
| int compareTo = Util.compare(inclusive, castedObject.inclusive); |
| |
| if (compareTo == 0) |
| compareTo = Util.compare(pattern.pattern(), castedObject.pattern.pattern()); |
| |
| return compareTo; |
| } |
| |
| public boolean equals(Object object) { |
| if (!(object instanceof PatternBinding)) |
| return false; |
| |
| PatternBinding castedObject = (PatternBinding) object; |
| boolean equals = true; |
| equals &= Util.equals(inclusive, castedObject.inclusive); |
| equals &= Util.equals(pattern, castedObject.pattern); |
| return equals; |
| } |
| |
| public Pattern getPattern() { |
| return pattern; |
| } |
| |
| public boolean isInclusive() { |
| return inclusive; |
| } |
| |
| public int hashCode() { |
| if (!hashCodeComputed) { |
| hashCode = HASH_INITIAL; |
| hashCode = hashCode * HASH_FACTOR + Util.hashCode(inclusive); |
| hashCode = hashCode * HASH_FACTOR + Util.hashCode(pattern); |
| hashCodeComputed = true; |
| } |
| |
| return hashCode; |
| } |
| |
| public String toString() { |
| if (string == null) { |
| final StringBuffer stringBuffer = new StringBuffer(); |
| stringBuffer.append('['); |
| stringBuffer.append(inclusive); |
| stringBuffer.append(','); |
| stringBuffer.append(pattern); |
| stringBuffer.append(']'); |
| string = stringBuffer.toString(); |
| } |
| |
| return string; |
| } |
| } |