System Generation Statements › LOADLIST Statement—Define Load Lists › LOADLIST Statement Usage

LOADLIST Statement Usage

Defining Loadlists

You can include any number of load lists in a DC/UCF system definition. You use the SYSTEM statement to designate one load list as the system default. The SYSTEM statement is described in SYSTEM Statement.

System Default Loadlist (SYSLOAD)

One predefined load list, SYSLOAD, is available to all DC/UCF systems at runtime. SYSLOAD is used as the system default load list if you do not designate a system default during system generation. The SYSLOAD load list has the following definition:

ADD LOADLIST SYSLOAD
    DICTNAME IS USER-DEFAULT VERSION IS USER-DEFAULT
    DICTNAME IS SYSTEM-DEFAULT VERSION IS USER-DEFAULT
    LOADLIB IS USER-DEFAULT
    DICTNAME IS USER-DEFAULT VERSION IS 1
    DICTNAME IS SYSTEM-DEFAULT VERSION IS 1
    LOADLIB IS SYSTEM-DEFAULT.

Changing the Loadlist in Effect for a DC/UCF Session

At runtime, users can vary the load list in effect for the current session by means of the DCUF SET LOADLIST command. DCUF commands are described in CA IDMS System Tasks and Operator Commands Guide.

Changing the User-Default Dictionary and Load Library

The user-default dictionary can be set at runtime

• In a user profile with the dictname parameter
• If not set in the user profile or if the dictname parameter of the user profile can be overridden, you can use the DCUF SET DICTNAME command

The user-default load library and version can be set at runtime using the DCUF TEST command.

Adding Elements to a Loadlist

Load libraries and data dictionaries added to a previously existing load list are placed at the end of the list. To insert a library or dictionary before the last entry in a load list, you must first delete all entries beyond the position in which the new entry is to be inserted. Then you can add the new entry and the deleted entries in the appropriate order.

Program Loading Criteria

In addition to being defined in a loadlist, programs must also meet one of the criteria below to be loaded (whether they reside in a load library or a load area designated in the load list) into a program pool.

• The specific version of the program must be explicitly defined in a system generation PROGRAM statement.
• The specific version of the program must be explicitly defined at runtime with a DCMT VARY DYNAMIC PROGRAM command.
• The program must be eligible to be loaded with a null PDE. For more information about null PDEs and undefined programs, see SYSTEM Statement.