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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) 2007 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.core.internal.registry.osgi;

import java.util.Map;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.jobs.ISchedulingRule;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.core.runtime.spi.RegistryStrategy;

/**
 * Use Eclipse job scheduling mechanism.
 */
final public class ExtensionEventDispatcherJob extends Job {
	// an "identy rule" that forces extension events to be queued
	private final static ISchedulingRule EXTENSION_EVENT_RULE = new ISchedulingRule() {
		@Override
		public boolean contains(ISchedulingRule rule) {
			return rule == this;
		}

		@Override
		public boolean isConflicting(ISchedulingRule rule) {
			return rule == this;
		}
	};
	private final Map deltas;
	private final Object[] listenerInfos;
	private final Object registry;

	public ExtensionEventDispatcherJob(Object[] listenerInfos, Map deltas, Object registry) {
		// name not NL'd since it is a system job
		super("Registry event dispatcher"); //$NON-NLS-1$
		setSystem(true);
		this.listenerInfos = listenerInfos;
		this.deltas = deltas;
		this.registry = registry;
		// all extension event dispatching jobs use this rule
		setRule(EXTENSION_EVENT_RULE);
	}

	@Override
	public IStatus run(IProgressMonitor monitor) {
		return RegistryStrategy.processChangeEvent(listenerInfos, deltas, registry);
	}
}