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

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