PARTITIONSET resources

A PARTITIONSET resource defines a partition set, that is, is a table that describes to CICS® how to partition a display screen.

Partition sets are created by coding and assembling a series of commands.

The screen areas of some display devices (the 8775 Display Terminal and the IBM® 3290 Information Panel, for example), can be divided into partitions, which can be treated as several different small displays. Different programs or program steps in a transaction can write to or receive input from different partitions.

You specify the partition set with DFHPSD and DFHPDI macros, described for programming purposes in Partition set definition.

You specify each different partition configuration as a PARTITIONSET. PARTITIONSET definitions are created using CEDA or DFHCSDUP, or they can be autoinstalled if the appropriate system initialization parameters have been set. See Autoinstalling programs, map sets, and partition sets for information.

You can name the PARTITIONSET that you want the transaction to use in the TRANSACTION definition. When the transaction starts, the information is loaded into the internal buffer of the display device.

Alternatively, if you do not specify a PARTITIONSET, CICS sets the display device to its base state before the transaction is initiated.

The transaction may require CICS to load a PARTITIONSET, or change to a new one, by issuing the BMS SEND PARTNSET command. This loads the partition set dynamically, if its definition has been installed in the active CICS system.

Instead of using the BMS partition definition macros, you can define partitions interactively with the Screen Definition Facility II (SDF II) program product, program numbers 5665-366 (for MVS™) and 5664-307 (for VM). SDF II allows you to paint a screen interactively. You can then generate the screen to get the equivalent of a CICS/BMS partitionset. The test facilities of SDF II also enable you to see your partition in its run-time appearance. For general information, see Screen Definition Facility II Primer for CICS/BMS Programs and Screen Definition Facility II General Information.