Mappings can be found as a property inside a LinkContext.
The Mapping class is pretty straightforward, the only thing that is a little special is the configuration property. It is contextually-sensitive, so for example if you are inspecting the Mappings from inside your custom Filter, if there’s a value inside configuration it is because a user has specifically set a configuration for YOUR Filter on THIS Link, so go ahead and use it.
For more information about mapping configurations, check out ConfigurablePerMappingFilter.
|name||A unique name for this mapping, comes from the DeveloperName field of the corresponding cMDT record.|
|sourceFieldName||The API name of the field on the data source.|
|targetFieldName||The API name of the field on the data target.|
|configuration||Configuration information, if any has been specified for this mapping in this context.|