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modifyWMQTopic command


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

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

This command is valid only when it is used with WAS V7 and later appservers. Do not use it with earlier versions.

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

print AdminTask.help('WMQAdminCommands')

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

print AdminTask.help('command_name')

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

AdminConfig.save()

 

Purpose

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.

-customProperties are multi-step command parameters, consisting of tuples of -name and -value parameters. 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





 

Related tasks


Use AdminTask for scripted administration
Start wsadmin

 

Related


createWMQTopic
deleteWMQTopic
listWMQTopics
showWMQTopic
Mapping of admin console panel names to command names and WebSphere MQ names
WMQAdminCommands