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System items

 

System items can be used for:

• The generation of PCF headers. System items can control the PCF command identifier, control options, message sequence number, and command type.

• Data conversion. System items handle the character-set identifier for the character-string items in the bag.

Like all data items, system items consist of a selector and a value. For information about these selectors and what they are for, see MQAI Selectors.

System items are unique. One or more system items can be identified by a system selector. There is only one occurrence of each system selector.

Most system items can be modified (see Changing information within a bag), but the bag-creation options cannot be changed by the user. We cannot delete system items. (See Delete data items.)

 

Parent topic:

Using data bags

pc15660_

 

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