classadapter.java

jboss规则引擎

/***
 * ASM: a very small and fast Java bytecode manipulation framework
 * Copyright (c) 2000-2005 INRIA, France Telecom
 * 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. Neither the name of the copyright holders nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS 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 COPYRIGHT OWNER OR 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.
 */
package org.drools.asm;

/**
 * An empty {@link ClassVisitor} that delegates to another {@link ClassVisitor}.
 * This class can be used as a super class to quickly implement usefull class
 * adapter classes, just by overriding the necessary methods.
 * 
 * @author Eric Bruneton
 */
public class ClassAdapter
    implements
    ClassVisitor {

    /**
     * The {@link ClassVisitor} to which this adapter delegates calls.
     */
    protected ClassVisitor cv;

    /**
     * Constructs a new {@link ClassAdapter} object.
     * 
     * @param cv the class visitor to which this adapter must delegate calls.
     */
    public ClassAdapter(final ClassVisitor cv) {
        this.cv = cv;
    }

    public void visit(final int version,
                      final int access,
                      final String name,
                      final String signature,
                      final String superName,
                      final String[] interfaces) {
        this.cv.visit( version,
                       access,
                       name,
                       signature,
                       superName,
                       interfaces );
    }

    public void visitSource(final String source,
                            final String debug) {
        this.cv.visitSource( source,
                             debug );
    }

    public void visitOuterClass(final String owner,
                                final String name,
                                final String desc) {
        this.cv.visitOuterClass( owner,
                                 name,
                                 desc );
    }

    public AnnotationVisitor visitAnnotation(final String desc,
                                             final boolean visible) {
        return this.cv.visitAnnotation( desc,
                                        visible );
    }

    public void visitAttribute(final Attribute attr) {
        this.cv.visitAttribute( attr );
    }

    public void visitInnerClass(final String name,
                                final String outerName,
                                final String innerName,
                                final int access) {
        this.cv.visitInnerClass( name,
                                 outerName,
                                 innerName,
                                 access );
    }

    public FieldVisitor visitField(final int access,
                                   final String name,
                                   final String desc,
                                   final String signature,
                                   final Object value) {
        return this.cv.visitField( access,
                                   name,
                                   desc,
                                   signature,
                                   value );
    }

    public MethodVisitor visitMethod(final int access,
                                     final String name,
                                     final String desc,
                                     final String signature,
                                     final String[] exceptions) {
        return this.cv.visitMethod( access,
                                    name,
                                    desc,
                                    signature,
                                    exceptions );
    }

    public void visitEnd() {
        this.cv.visitEnd();
    }
}