Pathway Screen Cobol; Table 1-3. Pathway Screen Cobol Statements; Table 1-4. Pathway Screen Cobol Registers - HP NonStop TMF Programming Manual

Introduction to TMF

Pathway SCREEN COBOL

The SCREEN COBOL programming language allows programmers to write client
processes that communicate with operator terminals and intelligent input/output
devices, and that send data to server processes that manage application databases,
all under the control of Pathway. SCREEN COBOL programmers use special
statements and registers for accessing TMF.
COBOL language that manage transactions programmatically.

Table 1-3. Pathway SCREEN COBOL Statements

Statement
ABORT-TRANSACTION
BEGIN-TRANSACTION
END-TRANSACTION
RESTART-TRANSACTION
For more information about these statements, see the Pathway SCREEN COBOL
Reference Manual.
Table 1-4 lists the SCREEN COBOL language registers that manage transactions
programmatically.

Table 1-4. Pathway SCREEN COBOL Registers

Register
RESTART-COUNTER
TERMINATION-STATUS
TRANSACTION-ID
For more information about these registers, see the Pathway SCREEN COBOL
Reference Manual.
HP NonStop TMF Management Programming Manual—540140-008
Table 1-3
Description
Cancels the transaction of a terminal operating in transaction
mode. All database updates made to audited files during the
transaction are backed out and no attempt is made to restart
the transaction.
Marks the beginning of a series of operations that are to be
treated as a single transaction. When this statement
executes, the terminal enters transaction mode.
Marks the completion of a sequence of operations that are
treated as a single transaction. When this statement
executes, the terminal leaves transaction mode.
Is equivalent to an ABORT-TRANSACTION statement
followed by a BEGIN-TRANSACTION statement.
Description
Contains the number of times a transaction has been restarted
during transaction mode.
Communicates an error number, further describing the error.
Contains the value of the transaction identifier that the TMF
subsystem assigns when the SCREEN COBOL BEGIN-
TRANSACTION statement executes.
1-9
Pathway SCREEN COBOL
lists statements in the SCREEN