PowerExchange for WebSphere MQ User Guide for PowerCenter

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Configuring an MQ Source Qualifier

You can configure the following properties for an MQ Source Qualifier:

Message data size.
Set the size of the message data in the MESSAGE_DATA field of the MQ Source Qualifier if the message data is binary.

Data filter.
Enter a filter to read particular messages from the source queue.

Queue clean-up.
Evaluate filter conditions in the message header fields and remove messages from the source queue.

To configure an MQ Source Qualifier:

In the Mapping Designer, open a WebSphere MQ mapping.

Double-click the title bar of the MQ Source Qualifier.

The Edit Transformations dialog box appears.

Click the Ports tab.

Enter a precision for the message data port up to 100 MB.

Default is 64 KB.

The message header ports are predefined. You cannot change their configuration.

Click the Properties tab.

Enter properties for the MQ Source Qualifier.

The following table describes the properties you can enter:

Property	Description
Filter	Filter condition the PowerCenter Integration Service uses when reading records.
Tracing Level	Amount of detail included in the session log when you run a session containing this transformation.
Destructive Read	Evaluates filter conditions specified in the message header ports and removes messages from the source queue at synchronization points.
Recovery Cache Folder	Cache folder where the PowerCenter Integration Service stores message data when reading from the WebSphere MQ source.