Use this task to define a mediation in the administrative
console.
About this task
Defining a mediation in the administrative console makes
it available for the administrator to use to mediate destinations.
To
define a mediation, use the administrative console to complete the
following steps:
Procedure
- Display the Mediations page:
- In the navigation pane, click
- In the content pane, click the name of the service integration
bus
- Under Destination resources,
click Mediations.
- In the content pane, click New.
- Specify the following properties for the mediation:
- Mediation name
- Type a name for the mediation that is unique to the service integration
bus. This name is used to identify the mediation for administrative
purposes.
- Description
- Optionally, type a description of the behavior of the mediation,
taking into account any properties specified for the mediation.
- Handler list name
- Type the handler list name. This is the name used by the programmer
who deployed the mediation handler. Handler list names are unique
within the WebSphere Application
Server administrative cell.
- Global transaction
- Optionally, select this option (setting it to true) if you want
to start a global transaction for each message mediated by the mediation.
By default, Global transaction is
set to false, and a global transaction is not started when a message
is mediated.
- Allow concurrent mediation
- Optionally, select this option (setting it to true) if you want
to mediate multiple messages at the mediated destination.
By default,
Allow concurrent mediation is
set to false, and concurrent mediations are not allowed.
Note: Do
not allow concurrent mediation if message ordering is important.
- Selector
- Optionally, type a message selector to control which messages
are mediated by the mediation. The selector operates on the content
of the message header. The syntax of the message selector is defined
by the JMS specification.
If the message meets the conditions of
the selector, the message is mediated. Otherwise, the message is not
mediated.
- Discriminator
- Optionally, type a message discriminator to control which messages
are mediated by the mediation. Message discriminators conform to the
publish/subscribe topicspace syntax.
If the message meets the conditions
of the discriminator, the message is mediated. Otherwise, the message
is not mediated.
- Click OK.
- Save your changes to the master configuration.
Results
A named mediation is defined for the deployed handler list.