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

   1 package org.simantics.db.common.request;
   2
   3 import java.util.Collection;
   4 import java.util.HashSet;
   5
   6 import org.simantics.db.ReadGraph;
   7 import org.simantics.db.Resource;
   8 import org.simantics.db.exception.DatabaseException;
   9
  10 public class DeepObjectsWithType extends ResourceRead3<Collection<Resource>> {
  11
  12         public DeepObjectsWithType(Resource subject, Resource subrelationOf, Resource instanceOf) {
  13         super(subject, subrelationOf, instanceOf);
  14     }
  15
  16         @Override
  17         public Collection<Resource> perform(ReadGraph graph) throws DatabaseException {
  18                 HashSet<Resource> result = new HashSet<Resource>();
  19                 for(Resource object : graph.sync(new ObjectsWithType(resource, resource2, resource3))) {
  20                         result.add(object);
  21                         result.addAll(graph.sync(new DeepObjectsWithType(object, resource2, resource3)));
  22                 }
  23                 return result;
  24         }
  25
  26 }