CICS web support processing for 3270 application programs
CICS web support processes a terminal-oriented transaction in this sequence.
Attention: This topic contains Product-sensitive Programming Interface and Associated Guidance Information.
These steps are shown in the figure:
- Optionally, a converter program constructs the input that is passed to program DFHWBTTA.
- DFHWBTTA attaches the user's transaction, specifying DFHWBLT as the bridge exit program, and waits for a response from DFHWBLT. The user's transaction runs in a 3270 bridge environment.
- The bridge exit sets up a 3270 environment for the user's application program.
- The application program processes the input and constructs the 3270 output.
- The bridge exit interprets the 3270 output and passes the HTTP response to DFHWBTTA.
- Optionally, a converter program modifies the output that is passed to the web client.
When you use CICS® web support with 3270 applications, the application program runs under its own transaction, and not under the alias transaction.