| /******************************************************************************* |
| * Copyright (c) 2006, 2007 Oracle. 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: |
| * Oracle - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.jpt.utility.internal; |
| |
| /** |
| * Assorted bit tools |
| */ |
| public class BitTools { |
| |
| /** |
| * Return whether the specified 'flags' has all the specified |
| * 'flagsToCheck' set. |
| */ |
| public static boolean allFlagsAreSet(int flags, int flagsToCheck) { |
| return (flags & flagsToCheck) == flagsToCheck; |
| } |
| |
| /** |
| * Return whether the specified 'flags' has any one of the specified |
| * 'flagsToCheck' set. |
| */ |
| public static boolean anyFlagsAreSet(int flags, int flagsToCheck) { |
| return (flags & flagsToCheck) != 0; |
| } |
| |
| /** |
| * Return whether the specified 'flags' has all the specified |
| * 'flagsToCheck' set. |
| */ |
| public static boolean allFlagsAreSet(int flags, int[] flagsToCheck) { |
| for (int i = flagsToCheck.length; i-- > 0; ) { |
| if ( ! allFlagsAreSet(flags, flagsToCheck[i])) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| /** |
| * Return whether the specified 'flags' has any one of the specified |
| * 'flagsToCheck' set. |
| */ |
| public static boolean anyFlagsAreSet(int flags, int[] flagsToCheck) { |
| for (int i = flagsToCheck.length; i-- > 0; ) { |
| if (anyFlagsAreSet(flags, flagsToCheck[i])) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| |
| // ********** constructor ********** |
| |
| /** |
| * Suppress default constructor, ensuring non-instantiability. |
| */ |
| private BitTools() { |
| super(); |
| throw new UnsupportedOperationException(); |
| } |
| |
| } |