@Override
  public Error getError() {
    if(get(DSL.ERROR)!=null) {
      return new ErrorObject(getMap(DSL.ERROR));
    }
    return null;
  }
An implementation of the {@link Job} interface
based on {@link MapObject}.

@author Arik Cohen
src/main/java/com/creactiviti/piper/core/job/SimpleJob.java