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AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based @AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step. This library is a superset of AspectJ weaver and hence also of AspectJ runtime.

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/*******************************************************************************
 * Copyright (c) 2004 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.aspectj.weaver.bcel;

/**
 * @author colyer This subclass of UnwovenClassFile allows a third-party to manage the actual bytes that comprise the class. This
 *         means the third party can return a reference to an existing array, or create the bytes on demand, or apply any other
 *         strategy that makes sense. By refering to bytes held elsewhere, the goal is to reduce the overall memory consumption by
 *         not holding a copy.
 */
public class UnwovenClassFileWithThirdPartyManagedBytecode extends UnwovenClassFile {

	IByteCodeProvider provider;

	public interface IByteCodeProvider {
		byte[] getBytes();
	}

	// OPTIMIZE make classname an input char[]
	public UnwovenClassFileWithThirdPartyManagedBytecode(String filename, String classname, IByteCodeProvider provider) {
		super(filename, classname, null);
		this.provider = provider;
	}

	public byte[] getBytes() {
		return provider.getBytes();
	}
}