User Control exit decisions

The parameter list that is provided to the User Control exit is documented in the Data Optimizer exit parameter list (DAPDEPL) macro, which contains a request-specific section for each call event that is presented to the User Control exit.

All calls, except for the initialization and termination events, expect a return code to be placed into the DAPDEPL to indicate the decision that was made by the User Control exit.

User Control exit return codes

Return code

User control exit decision

0

No decision could be provided and the User Control exit caller should make an intercept decision by using data policy information or DD override statements.

A return code of 0 causes Data Optimizer to function as if the User Control exit was disabled. This return code value is the default.

positive number

Intercept the data set.

negative number

Exclude the data set.

Note

An exit routine that always returns either a positive or a negative intercept decision (that is, never a return code of 0) might result in data policy information not being used.

Related topic

Implementing User Control exit

User Control exit decisions

Comments