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1 package org.apache.bcel.classfile; 2 3 /* ==================================================================== 4 * The Apache Software License, Version 1.1 5 * 6 * Copyright (c) 2001 The Apache Software Foundation. All rights 7 * reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. The end-user documentation included with the redistribution, 22 * if any, must include the following acknowledgment: 23 * "This product includes software developed by the 24 * Apache Software Foundation (http://www.apache.org/)." 25 * Alternately, this acknowledgment may appear in the software itself, 26 * if and wherever such third-party acknowledgments normally appear. 27 * 28 * 4. The names "Apache" and "Apache Software Foundation" and 29 * "Apache BCEL" must not be used to endorse or promote products 30 * derived from this software without prior written permission. For 31 * written permission, please contact apache@apache.org. 32 * 33 * 5. Products derived from this software may not be called "Apache", 34 * "Apache BCEL", nor may "Apache" appear in their name, without 35 * prior written permission of the Apache Software Foundation. 36 * 37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 40 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 41 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 44 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 45 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 46 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 47 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 48 * SUCH DAMAGE. 49 * ==================================================================== 50 * 51 * This software consists of voluntary contributions made by many 52 * individuals on behalf of the Apache Software Foundation. For more 53 * information on the Apache Software Foundation, please see 54 * <http://www.apache.org/>;. 55 */ 56 57 import org.apache.bcel.Constants; 58 59 /*** 60 * Super class for all objects that have modifiers like private, final, ... 61 * I.e. classes, fields, and methods. 62 * 63 * @version $Id: AccessFlags.java,v 1.3 2002/07/11 19:39:04 mdahm Exp $ 64 * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A> 65 */ 66 public abstract class AccessFlags implements java.io.Serializable { 67 protected int access_flags; 68 69 public AccessFlags() {} 70 71 /*** 72 * @param a inital access flags 73 */ 74 public AccessFlags(int a) { 75 access_flags = a; 76 } 77 78 /*** 79 * @return Access flags of the object aka. "modifiers". 80 */ 81 public final int getAccessFlags() { return access_flags; } 82 83 /*** 84 * @return Access flags of the object aka. "modifiers". 85 */ 86 public final int getModifiers() { return access_flags; } 87 88 /*** Set access flags aka "modifiers". 89 * @param access_flags Access flags of the object. 90 */ 91 public final void setAccessFlags(int access_flags) { 92 this.access_flags = access_flags; 93 } 94 95 /*** Set access flags aka "modifiers". 96 * @param access_flags Access flags of the object. 97 */ 98 public final void setModifiers(int access_flags) { 99 setAccessFlags(access_flags); 100 } 101 102 private final void setFlag(int flag, boolean set) { 103 if((access_flags & flag) != 0) { // Flag is set already 104 if(!set) // Delete flag ? 105 access_flags ^= flag; 106 } else { // Flag not set 107 if(set) // Set flag ? 108 access_flags |= flag; 109 } 110 } 111 112 public final void isPublic(boolean flag) { setFlag(Constants.ACC_PUBLIC, flag); } 113 public final boolean isPublic() { 114 return (access_flags & Constants.ACC_PUBLIC) != 0; 115 } 116 117 public final void isPrivate(boolean flag) { setFlag(Constants.ACC_PRIVATE, flag); } 118 public final boolean isPrivate() { 119 return (access_flags & Constants.ACC_PRIVATE) != 0; 120 } 121 122 public final void isProtected(boolean flag) { setFlag(Constants.ACC_PROTECTED, flag); } 123 public final boolean isProtected() { 124 return (access_flags & Constants.ACC_PROTECTED) != 0; 125 } 126 127 public final void isStatic(boolean flag) { setFlag(Constants.ACC_STATIC, flag); } 128 public final boolean isStatic() { 129 return (access_flags & Constants.ACC_STATIC) != 0; 130 } 131 132 public final void isFinal(boolean flag) { setFlag(Constants.ACC_FINAL, flag); } 133 public final boolean isFinal() { 134 return (access_flags & Constants.ACC_FINAL) != 0; 135 } 136 137 public final void isSynchronized(boolean flag) { setFlag(Constants.ACC_SYNCHRONIZED, flag); } 138 public final boolean isSynchronized() { 139 return (access_flags & Constants.ACC_SYNCHRONIZED) != 0; 140 } 141 142 public final void isVolatile(boolean flag) { setFlag(Constants.ACC_VOLATILE, flag); } 143 public final boolean isVolatile() { 144 return (access_flags & Constants.ACC_VOLATILE) != 0; 145 } 146 147 public final void isTransient(boolean flag) { setFlag(Constants.ACC_TRANSIENT, flag); } 148 public final boolean isTransient() { 149 return (access_flags & Constants.ACC_TRANSIENT) != 0; 150 } 151 152 public final void isNative(boolean flag) { setFlag(Constants.ACC_NATIVE, flag); } 153 public final boolean isNative() { 154 return (access_flags & Constants.ACC_NATIVE) != 0; 155 } 156 157 public final void isInterface(boolean flag) { setFlag(Constants.ACC_INTERFACE, flag); } 158 public final boolean isInterface() { 159 return (access_flags & Constants.ACC_INTERFACE) != 0; 160 } 161 162 public final void isAbstract(boolean flag) { setFlag(Constants.ACC_ABSTRACT, flag); } 163 public final boolean isAbstract() { 164 return (access_flags & Constants.ACC_ABSTRACT) != 0; 165 } 166 167 public final void isStrictfp(boolean flag) { setFlag(Constants.ACC_STRICT, flag); } 168 public final boolean isStrictfp() { 169 return (access_flags & Constants.ACC_STRICT) != 0; 170 } 171 }

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