Programmer Utilities › Introduction › Overview › List Facilities

List Facilities

The concept of a library list will already be familiar to i OS users. Toolkit also introduces the concept of four other types of lists: object lists, data base file lists, member lists and format lists.

A list is a collection of item descriptions that can be built from existing descriptions of items, and then manipulated, stored, and used to drive other processing.

Toolkit list processing includes the following capabilities:

• Lists can be executed.

  Any CL commands that operate either on objects or on members can be invoked on lists of objects or list of members by means of the Toolkit Execute List commands: (YEXCOBJLST, YEXCMBRLST, YEXCDBFLST). Non-generic commands can be made to work generically, and generic commands can be made to work on selections of items.

• Lists can be stored indefinitely.
• Lists can be edited interactively.
• Lists can be trimmed, either interactively, or in batch.
• Lists can be combined as sets.
• Lists can be converted from one type to another.
• Lists can be transferred from machine to machine.