A Link structure describes the linkage between pipeline elements. These types of link are valid:
- Source to Process
- Process to Process
- Source to Target
- Process to Target
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Note 1: Rules when defining From values
- From values must reference the IDs of source or process defined in the source or process subdirectories of the Configuration Directory. On startup, if the ID does not refer to a defined source or process then the Hub will log an error and will shutdown.
- If the From value refers to a Source then the FromType value must be set to Source.
- If the From value refers to a Process then the FromType value must be set to Process.
Note 2: Rules when defining To values
- To values must reference IDs of processes or targets defined in the source or target subdirectories of the Configuration Directory. On startup, if the ID does not refer to a defined process or target then the Hub will log an error and will shutdown.
- If the To value refers to a Process then the ToType value must be set to Process.
- If the To value refers to a Target then the ToType value must be set to Target.
Important Note: If a circular reference occurs, then Hub will enter an endless loop.