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

   1 /*******************************************************************************
   2  * Copyright (c) 2014 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  *     Semantum Oy - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.modeling.adapters;
  13
  14 import org.simantics.db.ReadGraph;
  15 import org.simantics.db.Resource;
  16 import org.simantics.db.exception.DatabaseException;
  17 import org.simantics.db.layer0.adapter.StringModifier;
  18 import org.simantics.db.layer0.adapter.StringModifierFactory;
  19 import org.simantics.db.layer0.adapter.impl.RelatedEntityNameModifier;
  20 import org.simantics.layer0.Layer0;
  21 import org.simantics.modeling.ModelingResources;
  22
  23 /**
  24  * @author Tuukka Lehtonen
  25  */
  26 public class ConnectionRelationStringModifierFactory implements StringModifierFactory {
  27
  28         private Resource subject;
  29
  30         public ConnectionRelationStringModifierFactory(Resource subject) throws DatabaseException {
  31                 this.subject = subject;
  32         }
  33
  34         @Override
  35         public StringModifier createModifier(ReadGraph graph, Resource relation, Resource property) throws DatabaseException {
  36                 Layer0 L0 = Layer0.getInstance(graph);
  37
  38                 // Names require special care in validation and modification.
  39                 if (L0.HasName.equals(relation)) {
  40                         // Always rename all (configuration and diagram) connection relations
  41                         ModelingResources MOD = ModelingResources.getInstance(graph);
  42                         Resource connectionRelation = graph.getPossibleObject(subject, MOD.DiagramConnectionRelationToConnectionRelation);
  43                         Resource subject = connectionRelation != null ? connectionRelation : this.subject;
  44                         return new RelatedEntityNameModifier(graph, subject, property, MOD.ConnectionRelationToDiagramConnectionRelation);
  45                 }
  46
  47                 return null;
  48         }
  49
  50 }