bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/NamespaceRequirements.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.db.layer0.request;
  13
  14 import org.simantics.db.ReadGraph;
  15 import org.simantics.db.Resource;
  16 import org.simantics.db.common.request.ObjectsWithType;
  17 import org.simantics.db.common.request.ResourceMultiRead;
  18 import org.simantics.db.exception.DatabaseException;
  19 import org.simantics.db.procedure.AsyncMultiProcedure;
  20 import org.simantics.layer0.Layer0;
  21 import org.simantics.project.ontology.ProjectResource;
  22
  23 /**
  24  * @author Tuukka Lehtonen
  25  */
  26 public class NamespaceRequirements extends ResourceMultiRead<Resource> {
  27
  28     public NamespaceRequirements(Resource project) {
  29         super(project);
  30     }
  31
  32     @Override
  33     public void perform(ReadGraph graph, AsyncMultiProcedure<Resource> callback) throws DatabaseException {
  34         Layer0 L0 = Layer0.getInstance(graph);
  35         ProjectResource PROJ = ProjectResource.getInstance(graph);
  36
  37         for (Resource req : graph.syncRequest(new ObjectsWithType(resource, L0.IsLinkedTo, PROJ.NamespaceRequirement))) {
  38             callback.execute(graph, req);
  39         }
  40
  41         callback.finished(graph);
  42     }
  43
  44 }