Invoking user exit programs from expressions and row-filtering expressions

You can invoke user exit programs from expressions and row filtering expressions in Management Console.

Expressions

Expressions are stored and evaluated on target columns.

For example, you can create an expression that: calls a user exit program.

You can build an expression that contains a valid call to the %USER column manipulation function.

Row-filtering expressions

In order to include or exclude particular rows for replication, you need to build a row-filtering expression.

All row-filtering expressions that you define must return a boolean result.

You can build a row-filtering expression that contains a valid call to the %USER column manipulation function.

The user exit program should return a result that is used in the expression to populate data in a table column. Use the column manipulation function (%USER) to call user exit programs from either type of expression. You can build the expression in Management Console.