bundles/org.simantics.structural2/src/org/simantics/structural2/internal/queries/RelatedConnections.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.structural2.internal.queries;
  13
  14 import java.util.Set;
  15
  16 import org.simantics.db.ReadGraph;
  17 import org.simantics.db.Resource;
  18 import org.simantics.db.common.request.ResourceRead;
  19 import org.simantics.db.exception.DatabaseException;
  20 import org.simantics.structural2.queries.ConnectionSet;
  21
  22 /**
  23  * Returns all connections that are reachable from the given connection
  24  * with IsJoinedBy-relation including the given connection itself.
  25  *
  26  * @author Hannu Niemist&ouml;
  27  */
  28 public class RelatedConnections extends ResourceRead<Set<Resource>>{
  29
  30     public RelatedConnections(Resource connection) {
  31         super(connection);
  32     }
  33
  34     @Override
  35     public Set<Resource> perform(ReadGraph g) throws DatabaseException {
  36         ConnectionSet connectionSet = new ConnectionSet(g);
  37         connectionSet.addConnection(g, resource);
  38         return connectionSet.getConnections();
  39     }
  40
  41 }