WebSphere Application Server Network Deployment, Version 6.0.x
Operating Systems: AIX, HP-UX, Linux, Solaris, Windows
Mediations
These topics provide information about mediations, which are used
to change how messages are handled at destinations on a service integration
bus.
Why and when to perform this task
Learning about mediations
Read the following topics to learn more about using mediations to influence the content of a message, or the way in which it is handled in service integration technologies.
Learning about programming mediations
The following topics contain information about resources and programming hints and tips to help you write your own mediations.
Securing mediations
Use the following tasks to secure mediations at an operations level. For example, a mediation inherits its identity from a the messaging engine, but you might want to specify an alternative identity forthe mediation to use.
Configuring mediations
Use the following tasks if you want to modify the behavior of a mediation, control which messages are mediated, or influence how messages are processed.
Configuring mediation points
In service integration technologies, messages are held at specialized message points called mediation points before they are processed by a mediation. Use the following tasks to set properties at mediation points to route messages and start and stop mediations:
Managing mediations with administrative commands
You can use wsadmin commands to administer service integration technologies mediations. For example you can create, delete and view mediations, configure mediation properties and mediate destinations.
Operating mediations at mediation points
Use these tasks to start, stop and restart mediations at runtime at specialized message points called mediation points.
Example: Using mediations to trace, monitor and log messages
The most straightforward use of a mediation is for tracing, monitoring or logging messages that pass through a destination or topics spaces. This type of mediation does not modify the message; it simply extracts information from the message, and saves or displays the information elsewhere.
Error handling in mediations
The actions taken in the event of an error occurring during mediation processing are summarized in the following table:
Mediation thread pool properties
The table below describes the default thread pool properties for the mediationsThreadPool object for a messaging engine.