Permanent topic namespace [Settings]
A topic namespace is a grouping of topics that allows information to be shared between applications.
To view this page in the console, click one of the following paths:
- Service integration -> WS-Notification -> Services -> service_name -> Permanent topic namespaces -> namespace_name
- Service integration -> Buses -> bus_name -> [Services] WS-Notification services -> service_name -> Permanent topic namespaces -> namespace_name
You use a permanent topic namespace to statically define the association between a WS-Notification topic namespace URI and a service integration bus topic space destination.
A permanent topic namespace has the following characteristics:
- We can use it to expose an existing service integration bus topic
space for use by WS-Notification clients, thus permitting interoperation
between the WS-Notification applications and existing publish and subscribe applications connected to the bus such as JMS.
- We can use it to restrict the structure and content of the topic
namespace by applying one or more topic namespace documents that describe
the required structure.
- We can use it as part of a topic space mapping configured on a service integration bus link (between two service integration buses) or a topic mapping as part of a publish and subscribe bridge between a service integration bus and a WebSphere MQ network.
When creating a new WS-Notification permanent topic namespace, specified the namespace and associate it with one of the service integration bus topic spaces configured on the bus on which the parent WS-Notification service is defined. We cannot modify a permanent topic namespace after it has been created, other than to apply or remove topic namespace documents.
Configuration tab
The Configuration tab shows configuration properties for this object. These property values are preserved even if the runtime environment is stopped then restarted. See the information center task descriptions for information about how to apply configuration changes to the runtime environment.
General Properties
Namespace
The URI string by which this topic namespace is known.
That is, the namespace URI by which WS-Notification applications refer to topics hosted by this namespace. For example http://widgetproducer.com/prices.
| Required | Data type |
|---|---|
| Yes | Text |
Service integration bus topic space
The service integration bus topic space with which this namespace is associated.
That is, the bus topic space used by this topic namespace.
| Required | Data type |
|---|---|
| Yes | Custom |
Message reliability
The service integration bus reliability to apply to messages published to this topic namespace.
| Required | Data type | Range |
|---|---|---|
| Yes | drop-down list |
|
Related concepts
Related tasks
Related information:
Reference topic