Rational Developer for System z

Additional generation properties for the Link3270 Bridge flow type

This topic describes the additional generation properties that are available for a flow node with a flow type of Link3270 Bridge.

Link3270 Bridge is a programming interface that allows a CICS® client to communicate with a 3270-based CICS transaction.

When you set the flow type of the flow node in a generation properties file to Link3270 Bridge, this causes the Generate Runtime Code wizard (when you run it on that generation properties file) to tailor the contents of the generated output files so that the resulting runtime program uses the CICS Link3270 Bridge interface to communicate with the target terminal application.

Important: You should be aware of the following:

The generation properties described in this help topic for the Link3270 Bridge flow type are in addition to the common generation properties that are available for all three flow types (see Common generation properties of all three flow types).

For more information about the following properties see the CICS Service Flow Runtime User's Guide (see Supported runtime environments for each project type).

Table 1. Additional generation properties for a Link3270 Bridge flow
NAME DESCRIPTION VALUE RANGE DEFAULT VALUE
Initial PFKey If applicable, this is the PFKey issued prior to executing the Startup Transaction. This is usually used to CLEAR a screen so that the transaction can be run from a native CICS screen. Clear, Enter, PF1-PF24, PA1-PA3, TESTREQ, SYSREQ Blank
Startup Transaction Data

The first 4 characters that you type into this field specify the transaction ID that is required to start the 3270 application.

You can type additional text after the transaction ID up to a maximum of 160 characters.

Optionally, instead of typing the information directly into this field you can click the Select button and select a variable in the input message of the flow in which the transaction ID and any additional text are stored.1

String value. Cannot be blank. Cannot have leading or embedded spaces within the first 4 characters. Blank
Service Service name used in the Link3270 server adapter for Link3270 State file processing. Can be blank Blank
Facility Like Name of a real terminal resource definition that is used as a template for some of the bridge facility properties N/A Blank
Facility Keep Time Maximum amount of time, in milliseconds, a bridge facility will be kept if inactive 0 - 86,400 86,400
Wait interval Maximum wait interval for message input, in milliseconds 0 - 4,200,000 4,200,000
Deallocate Facility On Exit Indicates if the bridge facility will be deactivated on adapter exit
  • No
  • Always
  • If Successful
  • If Unsuccessful
Always
Vector Logging Indicates whether vector logging will occur, and if so, the type of logging that will occur.
  • Off: No vector logging
  • Full: Vector headers BRIH and BRIV and vector data
  • Trace: Vector headers BRIH and BRIV
Off
Table notes:
  1. To specify a variable in the input message of the flow:
    1. Click the Select button to the right of the Startup Transaction Data field.
    2. Select the variable in the Element Selection window.
    3. Click OK.

    Caution: You cannot specify a variable name by typing it directly into the Startup Transaction Data field. Any text that you type into the Startup Transaction Data field is treated as a 4-character transaction ID followed by any additional text.

    When you specify a variable name the text in the variable is not subject to the 160-character limitation that exists when you type the text directly into the Startup Transaction Data field.

    The variable must have an Occurs property of 1.


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