1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.browsing.ui.graph.impl.contribution;
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14 import java.util.Collection;
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16 import org.simantics.browsing.ui.NodeContext;
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17 import org.simantics.browsing.ui.Tester;
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18 import org.simantics.db.ReadGraph;
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19 import org.simantics.db.exception.DatabaseException;
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22 * TODO: specification
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24 * @author Antti Villberg
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26 public interface GraphContribution {
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31 * @return a collection of contributions, must not be <code>null</code>
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32 * @throws DatabaseException
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34 public Collection<NodeContext> children(ReadGraph graph, NodeContext context) throws DatabaseException;
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37 * @return <code>null</code> if there is no tester
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39 public Tester getNodeContextTester();
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