returns the undo context for workbench operations . the workbench configures an undo context with the appropriate policies for the workbench undo model . concode_field_sep IOperationApprover approver concode_elem_sep ObjectUndoContext undoContext concode_field_sep IOperationHistory getOperationHistory concode_elem_sep void dispose
IUndoContext function ( ) { if ( undoContext == null ) { undoContext = new ObjectUndoContext ( PlatformUI . getWorkbench ( ) , "srini_string" ) ; } return undoContext ; }