Java tutorial
package org.aspectj.apache.bcel.classfile; /* ==================================================================== * The Apache Software License, Version 1.1 * * Copyright (c) 2001 The Apache Software Foundation. All rights * reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The end-user documentation included with the redistribution, * if any, must include the following acknowledgment: * "This product includes software developed by the * Apache Software Foundation (http://www.apache.org/)." * Alternately, this acknowledgment may appear in the software itself, * if and wherever such third-party acknowledgments normally appear. * * 4. The names "Apache" and "Apache Software Foundation" and * "Apache BCEL" must not be used to endorse or promote products * derived from this software without prior written permission. For * written permission, please contact apache@apache.org. * * 5. Products derived from this software may not be called "Apache", * "Apache BCEL", nor may "Apache" appear in their name, without * prior written permission of the Apache Software Foundation. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. */ import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.IOException; import org.aspectj.apache.bcel.Constants; /** * This class represents a inner class attribute, i.e., the class indices of the inner and outer classes, the name and the * attributes of the inner class. * * @version $Id: InnerClass.java,v 1.4 2009/09/10 15:35:05 aclement Exp $ * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A> * @see InnerClasses */ public final class InnerClass implements Cloneable, Node { private int inner_class_index; private int outer_class_index; private int inner_name_index; private int inner_access_flags; /** * Initialize from another object. */ public InnerClass(InnerClass c) { this(c.getInnerClassIndex(), c.getOuterClassIndex(), c.getInnerNameIndex(), c.getInnerAccessFlags()); } /** * Construct object from file stream. * * @param file Input stream * @throws IOException */ InnerClass(DataInputStream file) throws IOException { this(file.readUnsignedShort(), file.readUnsignedShort(), file.readUnsignedShort(), file.readUnsignedShort()); } /** * @param inner_class_index Class index in constant pool of inner class * @param outer_class_index Class index in constant pool of outer class * @param inner_name_index Name index in constant pool of inner class * @param inner_access_flags Access flags of inner class */ public InnerClass(int inner_class_index, int outer_class_index, int inner_name_index, int inner_access_flags) { this.inner_class_index = inner_class_index; this.outer_class_index = outer_class_index; this.inner_name_index = inner_name_index; this.inner_access_flags = inner_access_flags; } /** * Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class. I.e., the * hierarchy of methods, fields, attributes, etc. spawns a tree of objects. * * @param v Visitor object */ public void accept(ClassVisitor v) { v.visitInnerClass(this); } /** * Dump inner class attribute to file stream in binary format. * * @param file Output file stream * @throws IOException */ public final void dump(DataOutputStream file) throws IOException { file.writeShort(inner_class_index); file.writeShort(outer_class_index); file.writeShort(inner_name_index); file.writeShort(inner_access_flags); } /** * @return access flags of inner class. */ public final int getInnerAccessFlags() { return inner_access_flags; } /** * @return class index of inner class. */ public final int getInnerClassIndex() { return inner_class_index; } /** * @return name index of inner class. */ public final int getInnerNameIndex() { return inner_name_index; } /** * @return class index of outer class. */ public final int getOuterClassIndex() { return outer_class_index; } /** * @param inner_access_flags. */ public final void setInnerAccessFlags(int inner_access_flags) { this.inner_access_flags = inner_access_flags; } /** * @param inner_class_index. */ public final void setInnerClassIndex(int inner_class_index) { this.inner_class_index = inner_class_index; } /** * @param inner_name_index. */ public final void setInnerNameIndex(int inner_name_index) { this.inner_name_index = inner_name_index; } /** * @param outer_class_index. */ public final void setOuterClassIndex(int outer_class_index) { this.outer_class_index = outer_class_index; } /** * @return String representation. */ @Override public final String toString() { return "InnerClass(" + inner_class_index + ", " + outer_class_index + ", " + inner_name_index + ", " + inner_access_flags + ")"; } /** * @return Resolved string representation */ public final String toString(ConstantPool constant_pool) { String inner_class_name, outer_class_name, inner_name, access; inner_class_name = constant_pool.getConstantString(inner_class_index, Constants.CONSTANT_Class); inner_class_name = Utility.compactClassName(inner_class_name); if (outer_class_index != 0) { outer_class_name = constant_pool.getConstantString(outer_class_index, Constants.CONSTANT_Class); outer_class_name = Utility.compactClassName(outer_class_name); } else outer_class_name = "<not a member>"; if (inner_name_index != 0) inner_name = ((ConstantUtf8) constant_pool.getConstant(inner_name_index, Constants.CONSTANT_Utf8)) .getValue(); else inner_name = "<anonymous>"; access = Utility.accessToString(inner_access_flags, true); access = access.equals("") ? "" : (access + " "); return "InnerClass:" + access + inner_class_name + "(\"" + outer_class_name + "\", \"" + inner_name + "\")"; } /** * @return deep copy of this object */ public InnerClass copy() { try { return (InnerClass) clone(); } catch (CloneNotSupportedException e) { } return null; } }