Is there a way to have CONSTANTS in a "pipeline"(AKA MAPPING)?

What I would like to do is have settable CONSTANTS to do things like set limits within a mapping that would be LIKE parameters, but isolated from the outside world. I would hate to change pipelines made for running these mappings(er pipelines) simply because I needed to add a new test value.

There could be a lot of uses for such constants. OH, and it would ALSO be great if the mappers, or other objects, could use values created from previous lines in that mapper.


Have you checked out the functionality provided through the use of expression libraries? This is one way to achieve what you describe.