bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/VariableRepresentation.java

   1 package org.simantics.db.layer0.util;\r
   2 \r
   3 import java.util.Map;\r
   4 \r
   5 import org.simantics.db.ReadGraph;\r
   6 import org.simantics.db.RequestProcessor;\r
   7 import org.simantics.db.common.request.UniqueRead;\r
   8 import org.simantics.db.exception.DatabaseException;\r
   9 import org.simantics.db.layer0.util.SimanticsClipboard.Representation;\r
  10 import org.simantics.db.layer0.variable.Variable;\r
  11 import org.simantics.db.layer0.variable.Variables;\r
  12 import org.simantics.utils.datastructures.hints.IHintContext.Key;\r
  13 \r
  14 class VariableRepresentation implements Representation {\r
  15 \r
  16         private String URI;\r
  17         \r
  18         public VariableRepresentation(String URI) {\r
  19                 this.URI = URI;\r
  20         }\r
  21 \r
  22         @Override\r
  23         public Key getKey() {\r
  24                 return SimanticsKeys.KEY_VARIABLE;\r
  25         }\r
  26         \r
  27         @SuppressWarnings("unchecked")\r
  28         @Override\r
  29         public <T> T getValue(RequestProcessor processor, Map<String,Object> hints) throws DatabaseException {\r
  30                 return (T)processor.syncRequest(new UniqueRead<Variable>() {\r
  31                         @Override\r
  32                         public Variable perform(ReadGraph graph) throws DatabaseException {\r
  33                                 return Variables.getVariable(graph, URI);\r
  34                         }\r
  35                 });\r
  36         }\r
  37         \r
  38 }