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The AspectJ matcher can be used for matching pointcuts independently of any AspectJ compilation or weaving steps. Most notably, this can be used by frameworks such as Spring AOP which utilise the @AspectJ pointcut syntax but implement aspect weaving in a way independent of AspectJ, e.g. using dynamic proxies.

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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.weaver.tools;

import java.util.HashMap;
import java.util.Map;

/**
 * Default implementation of MatchingContext, backed
 * by a Map.
 */
public class DefaultMatchingContext implements MatchingContext {

	private Map contextMap = new HashMap<>();

	/* (non-Javadoc)
	 * @see org.aspectj.weaver.tools.MatchingContext#hasContextParameter(java.lang.String)
	 */
	public boolean hasContextBinding(String contextParameterName) {
		return this.contextMap.containsKey(contextParameterName);
	}

	/* (non-Javadoc)
	 * @see org.aspectj.weaver.tools.MatchingContext#get(java.lang.String)
	 */
	public Object getBinding(String contextParameterName) {
		return this.contextMap.get(contextParameterName);
	}

	/**
	 * Add a context binding with the given name and value
	 * @param name
	 * @param value
	 */
	public void addContextBinding(String name, Object value) {
		this.contextMap.put(name, value);
	}

	/**
	 * Remove the context binding with the given name
	 * @param name
	 */
	public void removeContextBinding(String name) {
		this.contextMap.remove(name);
	}

}