bundles/org.simantics.mapping/src/org/simantics/mapping/CompositeModification.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.mapping;
  13
  14 import java.util.Collection;
  15
  16 import org.simantics.db.WriteGraph;
  17 import org.simantics.db.exception.DatabaseException;
  18 import org.simantics.layer0.utils.triggers.IModification;
  19 import org.simantics.layer0.utils.triggers.ITrigger;
  20
  21 /**
  22  * Composes multiple triggers into one modification that performs
  23  * all modifications generated by the triggers.
  24  */
  25 public class CompositeModification implements IModification {
  26         Collection<ITrigger> triggers;
  27
  28         public CompositeModification(Collection<ITrigger> triggers) {
  29                 this.triggers = triggers;
  30         }
  31
  32         @Override
  33         public void perform(WriteGraph g) throws DatabaseException {
  34                 for(ITrigger trigger : triggers) {
  35                         while(true) {
  36                                 IModification modi = g.syncRequest(trigger);
  37                                 if(modi != null)
  38                                         modi.perform(g);
  39                                 else
  40                                         break;
  41                         }
  42                 }
  43         }
  44
  45
  46 }