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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) 2006, 2012 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.service.resolver;

/**
 * A specification which depends on a generic capability
 * @since 3.2
 * @noimplement This interface is not intended to be implemented by clients.
 */
public interface GenericSpecification extends VersionConstraint {
	/**
	 * The optional resolution type
	 * @see #getResolution()
	 */
	public static final int RESOLUTION_OPTIONAL = 0x01;
	/**
	 * The multiple resolution type
	 * @see #getResolution()
	 */
	public static final int RESOLUTION_MULTIPLE = 0x02;

	/**
	 * Returns a matching filter used to match with a suppliers attributes
	 * @return a matching filter used to match with a suppliers attributes
	 */
	public String getMatchingFilter();

	/**
	 * Returns the type of generic specification
	 * @return the type of generic specification
	 */
	public String getType();

	/**
	 * Returns the resolution type of the required capability.  The returned
	 * value is a bit mask that may have the optional bit {@link #RESOLUTION_OPTIONAL}
	 * and/or the multiple bit {@link #RESOLUTION_MULTIPLE} set.
	 *
	 * @return the resolution type of the required capability
	 */
	public int getResolution();

	/**
	 * Returns the suppliers of the capability.  If the the resolution is multiple then
	 * more than one supplier may be returned
	 * @return the suppliers of the capability
	 */
	public GenericDescription[] getSuppliers();
}