bundles/org.simantics.structural2/src/org/simantics/structural2/modelingRules/AllowedConnectionTypes.java

   1 package org.simantics.structural2.modelingRules;\r
   2 \r
   3 import java.util.Collection;\r
   4 import java.util.HashSet;\r
   5 import java.util.Set;\r
   6 \r
   7 import org.simantics.db.ReadGraph;\r
   8 import org.simantics.db.Resource;\r
   9 import org.simantics.db.common.request.ResourceRead;\r
  10 import org.simantics.db.exception.DatabaseException;\r
  11 import org.simantics.structural.stubs.StructuralResource2;\r
  12 \r
  13 public class AllowedConnectionTypes extends ResourceRead<Collection<Resource>> {\r
  14 \r
  15         public AllowedConnectionTypes(Resource connectionPoint) {\r
  16                 super(connectionPoint);\r
  17         }\r
  18 \r
  19         @Override\r
  20         public Collection<Resource> perform(ReadGraph graph) throws DatabaseException {\r
  21                 StructuralResource2 STR = StructuralResource2.getInstance(graph);\r
  22                 Collection<Resource> types = graph.getObjects(resource, STR.AllowsConnectionType);\r
  23                 Set<Resource> result = new HashSet<Resource>(types);\r
  24                 for(Resource type : types)\r
  25                         for(Resource override : graph.getObjects(type, STR.OverridesConnectionType))\r
  26                                 result.remove(override);\r
  27                 return result;\r
  28         }\r
  29 \r
  30 }\r