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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) 2000, 2009 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.aspectj.org.eclipse.jdt.internal.core;

import org.aspectj.org.eclipse.jdt.core.IField;
import org.aspectj.org.eclipse.jdt.core.IInitializer;
import org.aspectj.org.eclipse.jdt.core.IMethod;
import org.aspectj.org.eclipse.jdt.core.IModuleDescription;
import org.aspectj.org.eclipse.jdt.core.IPackageFragment;
import org.aspectj.org.eclipse.jdt.core.IType;

/**
 * The SingleTypeRequestor is an IJavaElementRequestor that
 * only accepts one result element and then cancels.
 */
/* package */ class SingleTypeRequestor implements IJavaElementRequestor {
	/**
	 * The single accepted element
	 */
	protected IType element= null;
/**
 * @see IJavaElementRequestor
 */
@Override
public void acceptField(IField field) {
	// implements interface method
}
/**
 * @see IJavaElementRequestor
 */
@Override
public void acceptInitializer(IInitializer initializer) {
	// implements interface method
}
/**
 * @see IJavaElementRequestor
 */
@Override
public void acceptMemberType(IType type) {
	this.element= type;
}
/**
 * @see IJavaElementRequestor
 */
@Override
public void acceptMethod(IMethod method) {
	// implements interface method
}
/**
 * @see IJavaElementRequestor
 */
@Override
public void acceptModule(IModuleDescription module) {
	// implements interface method
}
/**
 * @see IJavaElementRequestor
 */
@Override
public void acceptPackageFragment(IPackageFragment packageFragment) {
	// implements interface method
}
/**
 * @see IJavaElementRequestor
 */
@Override
public void acceptType(IType type) {
	this.element= type;
}
/**
 * Returns the type accepted by this requestor, or null
 * if no type has been accepted.
 */
public IType getType() {
	return this.element;
}
/**
 * @see IJavaElementRequestor
 */
@Override
public boolean isCanceled() {
	return this.element != null;
}
/**
 * Reset the state of this requestor
 */
public void reset() {
	this.element= null;
}
}