/*******************************************************************************
 * Copyright (c) 2003, 2005 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.debug.core.sourcelookup;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.debug.core.ILaunchConfiguration;

/**
 * A source path computer delegate computes the default source lookup path
 * (set of source containers that should be considered) for a launch
 * configuration.
 * <p>
 * A source path computer is contributed in plug-in XML via the 
 * <code>sourcePathComputers</code> extension point, providing a delegate
 * to compute the default source lookup path specific to a launch
 * configuration.
 * </p>
 * <p>
 * Clients may implement this interface.
 * </p>
 * @see org.eclipse.debug.core.sourcelookup.ISourcePathComputer
 * @since 3.0
 */
public interface ISourcePathComputerDelegate {
	
	/**
	 * Returns a default collection source containers to be considered for the
	 * given launch configuration. The collection returned represents the default
	 * source lookup path for the given configuration.
	 * 
	 * @param configuration the launch configuration for which a default source lookup path
	 *  is to be computed
	 * @param monitor a progress monitor to be used in case of long operations
	 * @return a default collection source containers to be considered for the
	 *  given launch configuration
	 * @exception CoreException if unable to compute a default source lookup path
	 */
	public ISourceContainer[] computeSourceContainers(ILaunchConfiguration configuration, IProgressMonitor monitor) throws CoreException;
	
}