Message Objects in Program Code

The following categories describe messages and the ways that your program code can interact with them.

  • Message Origin
    Origin is the way in which a message object comes into existence. The origin of a message within a program is either local or inbound:
  • Message Ownership
    Either your program code owns a message, or the TIBCO FTL library owns it. Ownership depends in part upon message origin, but releasing a message can change its ownership.
  • Message Access
    Message origin and current ownership determine the time frame within which your program can safely access a message object and its data.
  • Message Mutability
    Mutability indicates whether your program may modify a message:
  • Copy of a Message
    Programs can copy any message.
  • Messages and Thread-Safety
    Messages are not thread-safe. Ensure that only one thread at a time accesses a message and its data.
Related concepts
Related reference