bundles/org.simantics.scenegraph.loader/src/org/simantics/scenegraph/loader/SceneGraphVariableBuilder.java

   1 package org.simantics.scenegraph.loader;
   2
   3 import org.simantics.db.ReadGraph;
   4 import org.simantics.db.Resource;
   5 import org.simantics.db.exception.DatabaseException;
   6 import org.simantics.db.layer0.variable.StandardGraphChildVariable;
   7 import org.simantics.db.layer0.variable.StandardGraphPropertyVariable;
   8 import org.simantics.db.layer0.variable.Variable;
   9 import org.simantics.db.layer0.variable.VariableBuilder;
  10 import org.simantics.db.layer0.variable.VariableNode;
  11
  12 public class SceneGraphVariableBuilder implements VariableBuilder<Object> {
  13
  14         @Override
  15         public Variable buildChild(ReadGraph graph, Variable parent,
  16                         VariableNode<Object> node, Resource child) throws DatabaseException {
  17                 SceneGraphContext vc = ScenegraphLoaderUtils.getContext(graph, parent);
  18                 if(vc != null)
  19                         return new ScenegraphVariable(parent, child, null, null);
  20                 else
  21                         return new StandardGraphChildVariable(parent, null, child);
  22         }
  23
  24         @Override
  25         public Variable buildProperty(ReadGraph graph, Variable parent,
  26                         VariableNode<Object> node, Resource subject, Resource predicate)
  27                         throws DatabaseException {
  28                 return new StandardGraphPropertyVariable(graph, parent, null, subject, predicate);
  29         }
  30
  31 }