bundles/org.simantics.db.common/src/org/simantics/db/common/request/PossibleNearestOwner.java

   1 package org.simantics.db.common.request;\r
   2 \r
   3 import org.simantics.db.ReadGraph;\r
   4 import org.simantics.db.Resource;\r
   5 import org.simantics.db.exception.DatabaseException;\r
   6 \r
   7 public class PossibleNearestOwner extends ResourceRead2<Resource> {\r
   8 \r
   9     public PossibleNearestOwner(Resource resource, Resource type) {\r
  10         super(resource, type);\r
  11     }\r
  12 \r
  13     @Override\r
  14     public Resource perform(ReadGraph graph) throws DatabaseException {\r
  15         Resource owner = graph.syncRequest(new PossibleOwner(resource));\r
  16         if(owner == null) return null;\r
  17         if(graph.isInstanceOf(owner, resource2)) return owner;\r
  18         return graph.syncRequest(new PossibleNearestOwner(owner, resource2));\r
  19     }\r
  20     \r
  21 }