public ProtobufMessages.Timers.Timer serialize(JobContext jobCtx,
MarshallerWriteContext outputCtx) {
// ExpireJob, no state
ExpireJobContext ejobCtx = ( ExpireJobContext ) jobCtx;
WorkingMemoryReteExpireAction expireAction = ejobCtx.getExpireAction();
DefaultJobHandle jobHandle = ( DefaultJobHandle ) ejobCtx.getJobHandle();
PointInTimeTrigger trigger = ( PointInTimeTrigger ) jobHandle.getTimerJobInstance().getTrigger();
return ProtobufMessages.Timers.Timer.newBuilder()
.setType( ProtobufMessages.Timers.TimerType.EXPIRE )
.setExpire( ProtobufMessages.Timers.ExpireTimer.newBuilder()
.setHandleId( expireAction.getFactHandle().getId() )