CDAM User Exit CTDX018

CDAM User Exit CTDX018 is activated when the CDAM expression EXIT=YES is specified. The exit, which should be in a LINKLIST concatenation, receives control for every line written to the CDAM file.

Note: If CTDX018 is not in the LINKLIST, the IOA LOAD would need to be in the steplib concatenation of every job that writes directly to CDAM.

On first invocation, the exit can specify that CDAM must perform one of the following functions:

• write the file to a CDAM dataset (as normally done)
• suppress CDAM processing, leaving the exit responsible for processing the report

Alternatively, on any invocation after the first, the exit can modify the contents (and optionally the length) of the report line before it is written to the CDAM file. If the length is set to zero, the line is not written to the CDAM file, which is equivalent to suppressing the line.

As a further alternative, the exit can, on the first or any subsequent invocation, perform one of the following functions:

• activate other programs, as described in Example 1
• add lines to the report, as described in Example 2

The following examples illustrate these functions.