bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/ge/RemoveSourceAction.java

   1 package org.simantics.document.linking.ge;
   2
   3 import org.simantics.Simantics;
   4 import org.simantics.db.Resource;
   5 import org.simantics.db.WriteGraph;
   6 import org.simantics.db.common.request.WriteRequest;
   7 import org.simantics.db.exception.DatabaseException;
   8 import org.simantics.db.layer0.adapter.ActionFactory;
   9 import org.simantics.db.layer0.variable.Variable;
  10 import org.simantics.document.linking.ontology.DocumentLink;
  11
  12 public class RemoveSourceAction implements ActionFactory{
  13
  14
  15         @Override
  16         public Runnable create(Object target) {
  17                 if (!(target instanceof Variable))
  18                         return null;
  19                 final Variable v = (Variable)target;
  20
  21
  22                 return new Runnable() {
  23
  24                         @Override
  25                         public void run() {
  26                                 Simantics.getSession().asyncRequest(new WriteRequest() {
  27
  28                                         @Override
  29                                         public void perform(WriteGraph graph) throws DatabaseException {
  30                                             graph.markUndoPoint();
  31
  32                                                 DocumentLink sl = DocumentLink.getInstance(graph);
  33                                                 Resource t = v.getPossibleRepresents(graph);
  34                                                 if (!graph.isInstanceOf(t, sl.Source))
  35                                                         return;
  36                                                 graph.deny(t);
  37
  38                                         }
  39                                 });
  40
  41                         }
  42                 };
  43
  44
  45         }
  46
  47 }