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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) 2005 Contributors.
 * 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:
 *   Adrian Colyer			Initial implementation
 * ******************************************************************/
package org.aspectj.lang.reflect;

import java.lang.annotation.Annotation;

/**
 * The AspectJ runtime representation of a declare annotation member in an aspect.
 *
 */
public interface DeclareAnnotation {

	enum Kind { Field, Method, Constructor, Type };

	/**
	 * @return the aspect that declared this member.
	 */
	AjType getDeclaringType();

	/**
	 * @return the target element kind
	 */
	Kind getKind();

	/**
	 * @return the target signature pattern. Returns null if getKind() == Type
	 */
	SignaturePattern getSignaturePattern();

	/**
	 * @return the target type pattern. Returns null if getKind() != Type
	 */
	TypePattern getTypePattern();

	/**
	 * @return the declared annotation. If the declared annotation does not have runtime retention,
	 * this method returns null.
	 */
	Annotation getAnnotation();

	/**
	 * @return the text of the annotation as declared in this member. Available for
	 * both runtime and class-file retention annotations
	 */
	String getAnnotationAsText();

}