org.simantics.district.network/src/org/simantics/district/network/techtype/requests/TechTypeTableKeyName.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 TechTypeTableKeyName extends ResourceRead<String> {
  11
  12         public TechTypeTableKeyName(Resource table) {
  13                 super(table);
  14         }
  15
  16         @Override
  17         public String perform(ReadGraph graph) throws DatabaseException {
  18                 Layer0 L0 = Layer0.getInstance(graph);
  19                 DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
  20
  21                 Resource type = graph.getPossibleObject(resource, DN.TechType_TechTypeTable_HasComponentType);
  22                 if (type != null) {
  23                         for (Resource r : graph.getObjects(type, L0.DomainOf)) {
  24                                 Resource accessor = graph.getPossibleObject(r, L0.valueAccessor);
  25                                 if (accessor.equals(DN.TechType_Functions_techTypeCodeValueAccessor)) {
  26                                         return graph.getRelatedValue2(r, L0.HasName);
  27                                 }
  28                         }
  29                 }
  30
  31                 return null;
  32         }
  33 }