Implementing External Action Blocks › Construction › Modifying the External Action Block Stub › Using Repeating Groups

Using Repeating Groups

If the export view of the External Action Block contains a repeating group view, you must indicate the number of occurrences returned by setting the maximum field. This is a numeric field that immediately precedes the repeating group, and which has a name that ends with the letters MA (for Maximum). The field is also redefined as alphabetic using a name that ends with the letters MX. If you use multiple repeating groups, you have multiple maximum fields, one for each group.

You are responsible for keeping track of how many occurrences are returned and placing that count in the maximum field. Failure to do so results in the calling procedure or action block behaving as if the External Action Block returned no data in the repeating group.

The status of the repeating group is generated and placed in the External Action Block stub as a two-letter reference. These status references are described in the following table: