WebSphere MQ messaging provider queue and topic advanced properties settings


 

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To set the advanced properties for the selected queue or topic destination for use with the WebSphere MQ messaging provider. These advanced properties control the behavior of connections made to WebSphere MQ messaging provider destinations.

  1. In the navigation pane, click...

    Resources | JMS

  2. Click Queues or Topics to display existing queue or topic destinations.

  3. Set the Scope

  4. Click the name of the queue or topic destination that you want to work with.

  5. In the content pane, under Additional properties, click Advanced properties to display a list of the advanced properties of the WebSphere MQ queue or topic destination.

Under General Properties there are three groups of properties:

Make any required changes to these groups and then click Apply to return to the queue or topic.

When specifying WebSphere MQ properties, the following restrictions apply:

A queue or topic for use with the WebSphere MQ messaging provider has the following advanced properties.

Persistence

The level of persistence used to store messages sent to this destination.

Data type Drop-down list
Default As set by application
Range

As set by application

Messages on the destination have their persistence defined by the application that put them onto the queue.

As for WebSphere MQ queue definition

Messages on the destination have their persistence defined by the WebSphere MQ queue definition properties.

WebSphere MQ Persistent

Messages on the destination are persistent.

WebSphere MQ Non-persistent

Messages on the destination are not persistent.

WebSphere MQ High

Permit persistent messages to be sent as non-persistent messages when using an underlying WebSphere MQ queue with a NPMCLASS of 'HIGH'.

Priority

The priority assigned to messages sent to this destination.

Data type Drop-down list
Default As set by application
Range

As set by application

The priority of messages on this destination is defined by the application that put them onto the destination.

As for WebSphere MQ queue definition

Messages on the destination have their persistence defined by the WebSphere MQ destination definition properties.

Specified

The priority of messages on this destination is defined by the Specified priority property. If we select this option, define a priority on the Specified priority property.

Specified priority

If the Priority property was set to Specified, select the priority assigned to messages sent to this queue type destination.

Data type Drop-down list
Units Message priority level
Default As set by application
Range 0 (lowest priority) through 9 (highest priority)

Expiry

An option that specifies the expiry timeout for this destination.

Data type Drop-down list
Default As set by application
Range

As set by application

The expiry timeout for messages on this destination is defined by the application that put them onto the destination.

Specified

The expiry timeout for messages on this destination is defined by the Specified expiry property. If we select this option, define a timeout on the Specified expiry property.

Unlimited

Messages on this destination have no expiry timeout, so these messages never expire.

Specified expiry

If the Expiry property is set to Specified, enter the number of milliseconds after which messages expire and are removed from this destination.

Data type Integer
Units Milliseconds
Default 0
Range Greater than or equal to 0

  • 0 indicates that messages never timeout

  • Other values are an integer number of milliseconds

Coded character set identifier

The character set to use when encoding strings in the message.

Data type Integer
Default 1208
Range 1 through 65535.

The CCSID must be one of the CCSIDs supported by WebSphere MQ.

Use native encoding

An option that specifies whether the destination should use native encoding to provide appropriate encoding values for the Java platform.

Data type Check box
Default Selected
Range

Selected

Native encoding is used.

Cleared

Native encoding is not used, so specify the properties for Integer encoding, Decimal encoding, and Floating point encoding.

Integer encoding

If the Use native encoding check box is cleared, select the type of integer encoding to be used.

Data type Drop-down list
Default Normal
Range

Normal

Normal integer encoding is used.

Reversed

Reversed integer encoding is used.

Decimal encoding

If the Use native encoding check box is cleared, select the type of decimal encoding to be used.

Data type Drop-down list
Units Not applicable
Default Normal
Range

Normal

Normal decimal encoding is used.

Reversed

Reversed decimal encoding is used.

Floating point encoding

If the Use native encoding check box is cleared, select the type of floating point encoding to be used.

Data type Drop-down list
Default IEEENORMAL
Range

IEEENORMAL

IEEE normal floating point encoding is used.

IEEEREVERSED

IEEE reversed floating point encoding is used.

z/OS

z/OS floating point encoding is used.

Append RFH version 2 headers to messages sent to this destination

The action to take when replying to a message that is sent to this destination.

Data type Check box
Default Selected
Range

Cleared

Do not append RFH version 2 headers to messages sent to this destination.

Selected

Append RFH version 2 headers to messages sent to this destination.

Asynchronously send messages to the queue manager

An option that enables the queue manager to acknowledge receipt of messages sent to it. Asynchronously sending messages to the queue manager is faster, but messages can be lost if the messaging infrastructure fails.

Data type Drop-down list
Default The default value depends on whether we are working with a queue or topic destination.

As for queue definition

The default value if we are working with a queue destination.

As for topic definition

The default value if we are working with a topic destination.
Range

As for queue definition

Messages are acknowledged according to the WebSphere MQ queue definition properties.

As for topic definition

Messages are acknowledged according to the WebSphere MQ topic definition properties.

Yes

The queue manager acknowledges receipt of messages sent to it.

No

The queue manager does not acknowledge receipt of messages sent to it.

Read ahead and cache non-persistent messages for consumers

An option that determines whether messages for non-persistent consumers are sent to the client speculatively. Selecting this option results in faster message delivery but messages can be lost in the event of a failure in the messaging infrastructure.

Data type Drop-down list
Default The default value depends on whether we are working with a queue or topic destination.

As for queue definition

Default value if we are working with a queue destination.

As for topic definition

Default value if we are working with a topic destination.
Range

As for queue definition

Messages are sent to the client according to the WebSphere MQ queue definition properties.

As for topic definition

Messages are sent to the client according to the WebSphere MQ topic definition properties.

Yes

Messages are sent to the client speculatively.

No

Messages are not sent to the client speculatively.

Read ahead consumer close method

If Read ahead and cache non-persistent messages for consumers is set to Yes or As for queue definition this property is enabled. This property determines what happens to messages in the internal read ahead buffer when the message consumer is closed.

Data type Drop-down list
Default Close method waits for all cached messages to be delivered
Range

Wait for all cached messages to be delivered

All messages in the internal read ahead buffer are delivered to the application's message listener before returning.

Wait for the current message to be delivered

Only the current message listener invocation completes before returning, potentially leaving messages in the internal read ahead buffer, which are then discarded.






 

Related

Mapping of admin console panel names to command names and WebSphere MQ names
WebSphere MQ messaging provider queue settings
WebSphere MQ messaging provider topic settings