bundles/org.simantics.db/src/org/simantics/db/service/ExternalOperation.java

   1 package org.simantics.db.service;\r
   2 \r
   3 public interface ExternalOperation {\r
   4         /**\r
   5          * Undoes the operation. If operation is disposed, does nothing.\r
   6          */\r
   7         void undo();\r
   8 \r
   9         /**\r
  10          * Redoes the operation. If operation is disposed, does nothing.\r
  11          */\r
  12         void redo();\r
  13 \r
  14         /**\r
  15          * Tells if external operation is still valid. For example operations\r
  16          * related to experiments are disposed when the experiment is disposed.\r
  17          */\r
  18         boolean isDisposed();\r
  19 }\r