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Chapter 5
Note that long name, storage, and type options can be set for parameter s through the user
interface onl
y. These options cannot be set using scripts.
Click the arrows at the right to move the selected parameter further up or down the list of
availabl e parameters. Use the delete button (marked with an X) to remove the selected parameter.
Specifying Runtime Prompts for Parameter Values
If you have streams where you might need to enter different values for the same parameter on
different oc casions, you can specify runtime prompts for one or more stream or session parameter
values.
Figure 5-26
Runtime prompting for parameter values
Parameters.
(Optional) Enter a value for the parameter, or leave the default value if there is on e.
Turn off these prompts.
Select this box if you do not want these prompts to be displayed when you
run the stream. You can cause them to be re displayed by sel ecting the Prompt? check box on the
stream properties or session properties d ialog box where the parameters were defined. For more
informa tion, see the topic Setting Stream and Session Parameters on p. 68.
Specifying Value Constraints for a Parameter Type
You can make value constraints for a parameter available during stream deployment to an external
applicat ion that reads data modeling streams. This dialog box allows you to specify the values
availabl e to an external user running the stream. Depending on t he data type, value constraints
vary dynamically in the dialog box. The options s hown here are identical to the options available
for values from the Type node.