Release 10.1A: OpenEdge Development:
Messaging and ESB

> ## Methods unique to Pub/Sub messaging

> Table 3–2 lists the unique methods for Pub/Sub messaging:

> Table 3–2: Unique Pub/Sub messaging methods
> Method | Description
> --- | ---
> publish procedure | Publishes a message to a topic.
> subscribe procedure | Subscribes to a topic.
> cancelDurableSubscription procedure | Cancels a durable subscription.

> For an example, see the "Pub/Sub messaging example" section.

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