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

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