Queue attribute can be set on all queue definitions. They not only
affect the way messages are stored one the queues in question but also affect
the way messages are transmitted over communication channels. WebSphere
MQ Everyplace creates security attributes internally based on target queue
attributes. The actual effect they have depends upon the kind of queue
definition the queue attributes are involved:
- Local queue
- Determines how the data is stored and whether the incoming channel
characteristics are acceptable. If an authenticator is specified, an
authentication process using this authenticator occurs when the queue is
accessed for the first time by any particular instance of a local queue
manager.
- Remote queue
- Determines how the data is stored pending transmission, if applicable, and
how the outgoing channel is established. If an authenticator is
specified, an authentication process using this authenticator occurs whenever
a new channel for transmitting messages on the queue is created.
- Store-and-forward queue
- Determines how the data is stored pending transmission, whether the
incoming channel characteristics are acceptable, and how the outgoing channel
is established, if applicable. An authenticator on a store-and-forward
queue has the same effect that it has on a remote queue.
- Home server queue
- Determines how the outgoing channel is established. An
authenticator on a home-server queue has the same effect that it has on a
remote queue.
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