bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/adapter/impl/RootParentSubgraphExtent.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.db.layer0.adapter.impl;\r
  13 \r
  14 import org.simantics.db.AsyncReadGraph;\r
  15 import org.simantics.db.Resource;\r
  16 import org.simantics.db.Statement;\r
  17 import org.simantics.db.procedure.AsyncProcedure;\r
  18 import org.simantics.layer0.Layer0;\r
  19 \r
  20 public class RootParentSubgraphExtent extends TypeSubgraphExtent {\r
  21 \r
  22         public static boolean DEBUG = false;\r
  23         \r
  24         final private Classifier classifier;\r
  25         \r
  26         public RootParentSubgraphExtent(final Resource root) {\r
  27                 this.classifier = new Classifier() {\r
  28 \r
  29                         @Override\r
  30                         public void classify(AsyncReadGraph graph, Statement statement, ExtentStatus objectExtent, Callback callback) {\r
  31                                 if(!root.equals(statement.getSubject())) return;\r
  32                                 if(!graph.getService(Layer0.class).PartOf.equals(statement.getPredicate())) return;\r
  33                                 if(!ExtentStatus.EXTERNAL.equals(objectExtent)) return;\r
  34                                 callback.statement(statement, true); \r
  35                         }\r
  36                         \r
  37                 };\r
  38         }\r
  39 \r
  40         @Override\r
  41         public void accept(AsyncReadGraph graph, final Resource resource, final AsyncProcedure<Classifier> procedure, final Callback callback) {\r
  42                 procedure.execute(graph, classifier);\r
  43         }\r
  44 \r
  45 }\r