org.simantics.district.network/src/org/simantics/district/network/techtype/requests/PossibleTechTypeKeyName.java

   1 package org.simantics.district.network.techtype.requests;
   2
   3 import org.simantics.db.ReadGraph;
   4 import org.simantics.db.Resource;
   5 import org.simantics.db.common.request.ResourceRead;
   6 import org.simantics.db.exception.DatabaseException;
   7 import org.simantics.district.network.ontology.DistrictNetworkResource;
   8 import org.simantics.layer0.Layer0;
   9
  10 public class PossibleTechTypeKeyName extends ResourceRead<String> {
  11         public PossibleTechTypeKeyName(Resource componentType) {
  12                 super(componentType);
  13         }
  14
  15         @Override
  16         public String perform(ReadGraph graph) throws DatabaseException {
  17                 Layer0 L0 = Layer0.getInstance(graph);
  18                 DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
  19
  20                 for (Resource r : graph.getObjects(resource, L0.DomainOf)) {
  21                         Resource accessor = graph.getPossibleObject(r, L0.valueAccessor);
  22                         if (accessor.equals(DN.TechType_Functions_techTypeCodeValueAccessor)) {
  23                                 return graph.getRelatedValue2(r, L0.HasName);
  24                         }
  25                 }
  26
  27                 return null;
  28         }
  29 }