Integration Server 10.5 | JMS Client Development Guide | Introduction to JMS | JMS API Programming Model | Messages | Message Acknowledgment
 
Message Acknowledgment
A message is not considered to be successfully consumed until it is acknowledged. Depending on the session acknowledgment mode, the messaging provider may send a message more than once to the same destination. Several message acknowledgment constants exist.
Value
Description
AUTO_ACKNOWLEDGE
Automatically acknowledges the successful receipt of a message.
CLIENT_ACKNOWLEDGE
Acknowledges the receipt of a message when the client calls the message’s acknowledge() method.
DUPS_OK_ACKNOWLEDGE
Instructs the session to automatically, lazily acknowledge the receipt of messages, which reduces system overhead but may result in duplicate messages being sent.