null
fun <TInput, TSubFilterInput, TResult : Any> nullGuarded(transform: (TInput) -> TSubFilterInput?, transformDescription: String, inputNullResult: TResult?, filter: IFilter<TSubFilterInput, TResult>): PreProcessorFilter<TInput, TSubFilterInput?, TResult>(source)
Creates a PreProcessorFilter, which doesn't pass null as an input to filter.
Parameters
TInput
The type PreProcessorFilter filter accepts
TSub
The type filter accepts
TResult
the type filter returns
transform
The transform to pass to PreProcessorFilter.transform
transform
Textual description of transform for better dump readability
input
The result to pass to InputNullGuardFilter.inputNullResult
filter
The sub-filter to evaluate