Network Deployment (Distributed operating systems), v8.0 > Reference > Commands (wsadmin scripting)


modifyWMQTopic command

Use the modifyWMQTopic command to change certain parameters of a WebSphere MQ messaging provider topic.

To run the command, use the AdminTask object of the wsadmin scripting client.

This command is valid only when it is used with WAS v7 and later application servers. Do not use it with earlier versions.

For a list of the available WebSphere MQ messaging provider administrative commands, plus a brief description of each command, run at the wsadmin prompt:

print AdminTask.help('WMQAdminCommands')

For overview help on a given command, run at the wsadmin prompt:

print AdminTask.help('command_name')

After using the command, save changes to the master configuration. For example, use the following command:

AdminConfig.save()

Use the modifyWMQTopic command to modify a WebSphere MQ messaging provider topic defined at the scope at which the command is issued.

We cannot change the name of an topic.


Target object

A WebSphere MQ messaging provider topic at the specific scope.



Required parameters

The parameters for this command are identical to those used to create a WebSphere MQ messaging provider topic.



Optional parameters

The parameters for this command are identical to those used to create a WebSphere MQ messaging provider topic.

Note the behavior of this command on the -customProperties parameter.

-customProperties

This parameter specifies custom properties to be passed to the WebSphere MQ messaging provider topic implementation. Typically, custom properties are used to set attributes of the topic that are not directly supported through the WebSphere administration interfaces.

Each custom property is specified using name and value table step parameters. Since these are table steps, the order of the two parameters is fixed, so always specify the name first and the value second:

  • In Jython: [name]

  • In Jacl: {name}

New name/value pairs are added to the existing set of custom properties using the following rules:

  • If the existing set of properties does not contain a property with the same name as that supplied as part of a modify command, the supplied property is added to the set of custom properties, unless the custom property has no value specified, when it is disregarded.

  • If the existing set of properties contains a property with the same name as that supplied as part of a modify command, and the modify command also specifies a value for the property, the existing value is replaced by the supplied value.

  • If the existing set of properties contains a property with the same name as that supplied as part of a modify command, but the modify command does not specify a value for the property, the property with the same name is deleted from the existing set of custom properties.


Example


Use the wsadmin scripting AdminTask object for scripted administration
Start the wsadmin scripting client using wsadmin.sh


Related


createWMQTopic command
deleteWMQTopic command
listWMQTopics command
showWMQTopic command
Map of administrative console panel names to command names and WebSphere MQ names
WMQAdminCommands command group

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