/*******************************************************************************
* Copyright (c) 2007, 2010 Association for Decentralized Information Management
* in Industry THTH ry.
* 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:
* VTT Technical Research Centre of Finland - initial API and implementation
*******************************************************************************/
package org.simantics.browsing.ui.graph.impl.contribution;
import java.util.Collection;
import org.simantics.browsing.ui.NodeContext;
import org.simantics.browsing.ui.Tester;
import org.simantics.db.ReadGraph;
import org.simantics.db.exception.DatabaseException;
/**
* TODO: specification
*
* @author Antti Villberg
*/
public interface GraphContribution {
/**
* @param graph
* @param context
* @return a collection of contributions, must not be null
* @throws DatabaseException
*/
public Collection children(ReadGraph graph, NodeContext context) throws DatabaseException;
/**
* @return null
if there is no tester
*/
public Tester getNodeContextTester();
}