Pathmaker Reference Manual

CALL Parameter Definition Screen
Pathmaker Screens
1–10 067869 Tandem Computers Incorporated
Field Descriptions The following paragraphs describe fields on the CALL Parameter Definition screen.
Requester
Displays the name of the calling requester. You cannot enter data into this field.
Function Key
Displays the function key associated with the called requester. You cannot enter data
into this field.
Pass Reference Object Name
Enter the names of reference objects from the context of the calling requester that are
to be passed as parameters to the called requester. The Pathmaker product provides a
name in this column if an exact match (name, size, and type) is found between a
reference object in the To Reference Object Name column and a reference object found
in the context of the calling requester. (A requester’s context contains the set of all
reference objects available to it.)
Sizes and types of corresponding fields within parameter objects must be compatible.
The Pathmaker product tries to complete the list by matching any reference object with
the same name, size, and type in the called requester and in the calling requester. If
the Pathmaker product cannot find a match, it leaves this column blank. For example,
if one parameter is defined in DDL as PIC X(8), the corresponding parameter can be
TYPE CHARACTER 8, but cannot be PIC 9(8) or PIC X(10).
Compatible data types are described in the following manuals:
For ENSCRIBE files: Data Definition Language (DDL) Reference Manual
For NonStop SQL tables: NonStop SQL Programming Reference Manual for COBOL85
To Reference Object Name
Lists the reference objects that were specified in the Requester Parameters list of the
called requester. You cannot enter data into this column. If you want to change the
reference objects listed in this column, you must change the Requester Parameters
screen of the called requester.
Before/After
Enter B or A to indicate if the value in the reference object is to be passed as it existed
before input from the keyboard or after input from the keyboard:
B The calling requester passes its before-image of the indicated pass reference object.
The before-image is the data saved after the previous CALL or SEND action or, if
there was no previous CALL or SEND action, the initial value of the reference
object.
A The calling requester passes its after-image, containing any data entered on the
screen. This is the default value for each pass reference object.
If you want to pass both a before-image and an after-image, each must be a separate
parameter in the list.