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.procedure.adapter.TransientCacheListener;
   6 import org.simantics.db.common.request.ResourceRead;
   7 import org.simantics.db.exception.DatabaseException;
   8 import org.simantics.district.network.ontology.DistrictNetworkResource;
   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                 DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
  19
  20                 Resource type = graph.getPossibleObject(resource, DN.TechType_TechTypeTable_HasComponentType);
  21                 return type != null ? graph.syncRequest(new PossibleTechTypeKeyName(type), TransientCacheListener.instance()) : null;
  22         }
  23 }