bundles/org.simantics.layer0.utils/src/org/simantics/layer0/utils/collections/TypeBasedList.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.layer0.utils.collections;
  13
  14 import java.util.Collection;
  15
  16 import org.simantics.db.Resource;
  17 import org.simantics.db.ReadGraph;
  18 import org.simantics.db.exception.DatabaseException;
  19 import org.simantics.layer0.utils.operations.IOperation;
  20 import org.simantics.utils.datastructures.persistent.IContextMap;
  21
  22 public class TypeBasedList implements IContextualList {
  23
  24         Resource relation;
  25
  26         public TypeBasedList(Resource relation) {
  27                 this.relation = relation;
  28         }
  29
  30         @Override
  31         public void fill(ReadGraph g, IContextMap parameters, Collection<Resource> c) throws DatabaseException {
  32                 for(Resource type : g.getTypes((Resource)parameters.get(IOperation.SUBJECT))) {
  33                     for(Resource object : g.getObjects(type, relation)) {
  34                     ContextualListUtils.fill(g, object, parameters, c);
  35                     }
  36                 }
  37         }
  38
  39 }