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

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