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# JMS Topic --> Configuration --> Overrides

Tasks Related Topics Attributes

## Overview

This tab defines override configuration attributes for a topic destination. After defining a JMS server, you can configure its topics. You can configure one or more topics for each JMS server.

Note: You configure destinations explicitly or by configuring a JMS template that can be used to define multiple destinations with similar attribute settings, as described in JMS Template Tasks.

## Tasks

Creating a JMS Topic

## Related Topics

"WebLogic JMS Fundamentals" in Programming WebLogic JMS

"Managing WebLogic JMS" in Programming WebLogic JMS

"Developing a WebLogic JMS Application" in Programming WebLogic JMS

## Attributes

Table 29-1

Attribute Label | Description | Value Constraints
--- | --- | ---
Priority Override | The priority assigned to all messages that arrive at the destination, regardless of the Priority specified by the message producer. If no JMS template is specified for this destination, then -1 means that the destination will not override the Priority setting. Otherwise, -1 means that the value comes from the template. This attribute is dynamically configurable, but only incoming messages are impacted; stored messages are not impacted. MBean: `weblogic.management. configuration. JMSTopicMBean` Attribute: `PriorityOverride` | Minimum: -1 Maximum: 9 Default: -1 Dynamic: yes
Time To Live Override | The time-to-live value assigned to all messages that arrive at the destination, regardless of the TimeToLive specified by the message producer. If no JMS template is specified for this destination, then -1 means that the destination will not override the TimeToLive setting. Otherwise, -1 means that the value comes from the template. This attribute is dynamically configurable, but only incoming messages are impacted; stored messages are not impacted. MBean: `weblogic.management. configuration. JMSTopicMBean` Attribute: `TimeToLiveOverride` | Minimum: -1 Maximum: 9223372036854775807 Default: -1 Dynamic: yes
Time To Deliver Override | The default delay, either in milliseconds or as a schedule, between when a message is produced and when it is made visible on its target destination, regardless of the delivery time specified by the producer and/or connection factory. If no JMS template is specified for this destination, then -1 means that the destination will not override the TimeToDeliver setting. Otherwise, -1 means that the value comes from the template. The Time To Deliver Override can be specified either as a `long` or as an advanced scheduling syntax (see "Setting Message Delivery Times" in Programming JMS for details.) Note: Changing the Time To Deliver Override only affects future message delivery, it does not affect message delivery of already produced messages. MBean: `weblogic.management. configuration. JMSTopicMBean` Attribute: `TimeToDeliverOverride` | Default: "-1" Dynamic: yes
Delivery Mode Override | The delivery mode assigned to all messages that arrive at the destination regardless of the DeliveryMode specified by the message producer. If no JMS template is specified for this destination, then No-Delivery means the DeliveryMode will not be overridden. Otherwise, No-Delivery means that the value comes from the template. This attribute is dynamically configurable, but only incoming messages are impacted; stored messages are not impacted. MBean: `weblogic.management. configuration. JMSTopicMBean` Attribute: `DeliveryModeOverride` | Default: No-Delivery Valid values: Persistent Non-Persistent No-Delivery Dynamic: yes