server/state/StateSessionManager.java

   1 package org.simantics.document.server.state;
   2
   3 import org.simantics.db.ReadGraph;
   4 import org.simantics.db.exception.DatabaseException;
   5 import org.simantics.simulator.toolkit.StandardRealm;
   6 import org.simantics.simulator.toolkit.db.StandardVariableSessionManager;
   7
   8 public class StateSessionManager extends StandardVariableSessionManager<StateNode, StateNodeManagerSupport> {
   9
  10         private static StateSessionManager INSTANCE;
  11
  12         public static StateSessionManager getInstance() {
  13                 if(INSTANCE == null) {
  14                         INSTANCE = new StateSessionManager();
  15                 }
  16                 return INSTANCE;
  17         }
  18
  19         @Override
  20         protected StateNodeManagerSupport createEngine(ReadGraph graph, String id) throws DatabaseException {
  21                 return new StateNodeManagerSupport();
  22         }
  23
  24         @Override
  25         protected StandardRealm<StateNode, StateNodeManagerSupport> createRealm(StateNodeManagerSupport engine, String id) {
  26                 return new StateRealm(engine, id);
  27         }
  28
  29 }