Apama Documentation : Connecting Apama Applications to External Components : Using Message Services : Using Universal Messaging in Apama Applications : Overview of using UM in Apama applications : Using UM channels instead of configuring adapter connections
Using UM channels instead of configuring adapter connections
In an Apama application, you can use UM as the communication mechanism between an adapter and one or more correlators. If you do then keep in mind the following:
*Adapters must send events on named channels; adapters cannot use the default (empty string) channel.
*A service monitor that communicates with an adapter should either be run on only one correlator, or be correctly designed to use multiple correlators. See Considerations for using UM channels.
When an adapter needs to communicate with only one correlator, which is often the case for a service monitor, an Apama channel might be a better choice than a UM channel. However, even in this situation, it is possible and might be preferable to use a UM channel. See Comparison of Apama channels and UM channels.
See also: Configuring adapters to use UM.
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