Message Interest
A persistence store collects all the messages from its publishers, but a subscriber might require only a subset of those messages, and different subscribers might require different subsets. (Developers and administrators coordinate to configure this behavior.)
- Store All Messages
- The durable collects the full message stream. (This behavior is available only for standard durables and shared durables.)
- Store Matching Messages
- The durable collects a sub-stream determined by a content matcher.
- Store Messages with Key
- The durable collects the sub-stream of messages that contain a key field. You must specify the Key Field Name parameter. This behavior is available only for last-value durables.
Tip: From the moment that a subscriber object first interacts with a durable, you may no longer change a durable’s message interest, nor its matcher fields. If these configuration values must subsequently change, you can instead map the subscriber to a new durable with the correct message interest and matcher fields.
See Also:
- TIBCO FTL Durable Coordination Form
- “Content Matchers” in TIBCO FTL Development
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