public SIMessageHandle getMessageHandle ( ) { // If the transient is not set, build the handle from the values in the message and cache it. if ( cachedMessageHandle == null ) { byte [ ] b = ( byte [ ] ) jmo . getField ( JsHdrAccess . SYSTEMMESSAGESOURCEUUID ) ; if ( b != null ) { cachedMessageHandle = new JsMessageHandleImpl ( new SIBUuid8 ( b ) , ( Long ) jmo . getField ( JsHdrAccess . SYSTEMMESSAGEVALUE ) ) ; } else { cachedMessageHandle = new JsMessageHandleImpl ( null , ( Long ) jmo . getField ( JsHdrAccess . SYSTEMMESSAGEVALUE ) ) ; } } // Return the (possibly newly) cached value return cachedMessageHandle ; }
Get the message handle which uniquely identifies this message .