When you write to the cache structure, you must specify whether you are writing only the data item to a data entry, only adjunct data, or both.

To write a data item for a data entry only, omit the ADJAREA keyword from the request. If the cache structure definition supports an adjunct area, the system writes binary zeros to the adjunct area. To specify the local cache buffer for the data item, use either BUFFER or BUFLIST.

To write adjunct data only, code the ADJAREA keyword. You must also specify BUFLIST, and BUFNUM must equal 0. The system writes the data specified by the ADJAREA keyword to the adjunct area and leaves the related data entry unchanged.

To write both a data item and adjunct data, specify ADJAREA and use either BUFLIST or BUFFER.