bundles/org.simantics.datatypes/src/org/simantics/datatypes/utils/PossibleResource.java

   1 package org.simantics.datatypes.utils;
   2
   3 import org.simantics.databoard.annotations.Optional;
   4 import org.simantics.db.Resource;
   5 import org.simantics.db.exception.DatabaseException;
   6 import org.simantics.db.service.SerialisationSupport;
   7
   8 final class PossibleResource {
   9
  10         @Optional
  11         public Resource r;
  12
  13         public long longValue() {
  14                 if(r == null) return 0L;
  15                 return r.getResourceId();
  16         }
  17
  18         public static PossibleResource read(SerialisationSupport ss, long l) throws DatabaseException {
  19                 PossibleResource pr = new PossibleResource();
  20                 if(l != 0) pr.r = ss.getResource(l);
  21                 return pr;
  22         }
  23
  24 }