|
|||||
|
|
|||||
| Externally defined sources | |||||
| Prerequisite Concepts | |||||
OmniMark allows functions to be declared as externally defined sources with the define external source declaration. An externally defined source is an external function that returns its data incrementally, (much like the built-in file operator).
These types of functions can be very useful for external functions that establish a "session-based" communication line with another application, or for functions that return a potentially large amount of data.
More information about externally defined sources is available in the OmniMark external function programmer's guide .
|
Prerequisite Concepts External functions Function types and anatomy |
| ---- |
