This modifier will replace any single http sampler's url parameter value with
a value from a given range - thereby "masking" the value set in the http
sampler. The parameter names must match exactly, and the parameter value must
be preset to "*" to diferentiate between duplicate parameter names.
For example, if you set up the modifier with a lower bound of 1, an upper
bound of 10, and an increment of 2, and run the loop 12 times, the parameter
will have the following values (one per loop): 1, 3, 5, 7, 9, 1, 3, 5, 7, 9,
1, 3
The
ParamMask
object contains most of the logic for stepping through
this loop. You can make large modifications to this modifier's behaviour by
changing one or two method implementations there.