Interface OrderedExecution

Provides an execution order key that execution facilities can use to group related executions.

Executions with equal non-null keys can be treated as belonging to the same ordered execution group. The exact ordering and execution semantics are defined by the facility that consumes this interface. Implementations should normally return stable, low-cardinality keys.

A class object is often a natural key. For example:

   @Override
   public Object getExecutionOrderKey()
   {
     return MySensibleOperation.class;
   }