bundles/org.simantics.modeling/src/org/simantics/modeling/adapters/DiagramSubgraphExtent.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2012 Association for Decentralized Information Management in\r
   3  * 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.modeling.adapters;\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.layer0.adapter.impl.TypeSubgraphExtent;\r
  18 import org.simantics.db.procedure.AsyncProcedure;\r
  19 import org.simantics.diagram.stubs.DiagramResource;\r
  20 \r
  21 public class DiagramSubgraphExtent extends TypeSubgraphExtent {\r
  22 \r
  23         final private Classifier classifier = new Classifier() {\r
  24 \r
  25                 @Override\r
  26                 public void classify(AsyncReadGraph graph, Statement statement, ExtentStatus objectExtent,\r
  27                                 Callback callback) {\r
  28 \r
  29                         if(!ExtentStatus.INTERNAL.equals(objectExtent)) return;\r
  30                         \r
  31                         Resource predicate = statement.getPredicate();\r
  32                         \r
  33                         DiagramResource dr = graph.getService(DiagramResource.class);\r
  34                         if(dr.JoinsFlag.equalsResource(predicate)) callback.statement(statement, true);\r
  35                         else if(dr.FlagIsJoinedBy.equalsResource(predicate)) callback.statement(statement, true);\r
  36                         \r
  37                 }\r
  38                 \r
  39         };\r
  40         \r
  41         @Override\r
  42         public void accept(AsyncReadGraph graph, Resource resource,\r
  43                         AsyncProcedure<Classifier> procedure, Callback callback) {\r
  44                 procedure.execute(graph, classifier);\r
  45         }\r
  46 \r
  47 }\r