To override parameter settings for the Generic Reader, which method is described?

To override parameter settings for the Generic Reader, which method is described?

• A. Add a Reader as a Resource, and set parameters there.
• B. Add a ParameterFetcher transformer to the workspace.
• C. Create a new workspace.
• D. Use the built-in default parameters.

Answer: (A)

Overriding the Generic Reader’s parameters is done by saving the Reader as a Resource and configuring its parameters on that Resource. Resources are reusable configurations that carry a Reader’s parameter values; when the workspace uses the Reader as a Resource, those values take precedence over the workspace’s inline settings. This lets you reuse the same workflow with different parameter sets without editing the workspace each time. The other options don’t provide this reusable, centralized way to override the Reader’s parameters. A ParameterFetcher can supply values dynamically during run but doesn’t redefine the Reader’s stored parameters; creating a new workspace doesn’t give you a portable parameter override mechanism; and sticking with built-in defaults ignores any custom values you need.

Overriding the Generic Reader’s parameters is done by saving the Reader as a Resource and configuring its parameters on that Resource. Resources are reusable configurations that carry a Reader’s parameter values; when the workspace uses the Reader as a Resource, those values take precedence over the workspace’s inline settings. This lets you reuse the same workflow with different parameter sets without editing the workspace each time.

The other options don’t provide this reusable, centralized way to override the Reader’s parameters. A ParameterFetcher can supply values dynamically during run but doesn’t redefine the Reader’s stored parameters; creating a new workspace doesn’t give you a portable parameter override mechanism; and sticking with built-in defaults ignores any custom values you need.