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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) 2010, 2016 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.eclipse.osgi.internal.serviceregistry;

import java.util.*;

public class ShrinkableEntrySetValueCollection extends AbstractCollection implements Collection {
	private final Set> entrySet;

	public ShrinkableEntrySetValueCollection(Set> e) {
		if (e == null) {
			throw new NullPointerException();
		}
		entrySet = e;
	}

	@Override
	public void clear() {
		entrySet.clear();
	}

	@Override
	public boolean isEmpty() {
		return entrySet.isEmpty();
	}

	@Override
	public Iterator iterator() {
		return new ValueIterator<>(entrySet.iterator());
	}

	@Override
	public int size() {
		return entrySet.size();
	}

	/**
	 * Iterator over the values of the entry set.
	 */
	static private final class ValueIterator implements Iterator {
		private final Iterator> iter;

		ValueIterator(Iterator> i) {
			iter = i;
		}

		@Override
		public boolean hasNext() {
			return iter.hasNext();
		}

		@Override
		public E next() {
			final Map.Entry entry = iter.next();
			return entry.getValue();
		}

		@Override
		public void remove() {
			iter.remove();
		}
	}
}