Package io.cucumber.query

Interface LineageReducer<T>

Type Parameters:

T - the type reduced to.

All Known Implementing Classes:

NamingStrategy

public interface LineageReducer<T>

Visit the Lineage of a GherkinDocument element or Pickle and reduce it.

Because we are using messages we can not express the hierarchy of elements in a GherkinDocument programmatically as a tree of nodes. But we can still express the operations that would be typically done this way as an operation on the lineage of those messages.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	LineageReducer.Collector<T>	Collect the Lineage of a GherkinDocument element or Pickle and reduce it to a single result.

Method Summary

Modifier and Type	Method	Description
static <T> LineageReducer<T>	ascending(Supplier<? extends LineageReducer.Collector<T>> collector)
static <T> LineageReducer<T>	descending(Supplier<? extends LineageReducer.Collector<T>> collector)
T	reduce(Lineage lineage)
T	reduce(Lineage lineage, io.cucumber.messages.types.Pickle pickle)

Method Details

descending

static <T> LineageReducer<T> descending(Supplier<? extends LineageReducer.Collector<T>> collector)

ascending

static <T> LineageReducer<T> ascending(Supplier<? extends LineageReducer.Collector<T>> collector)

reduce

T reduce(Lineage lineage)

reduce

T reduce(Lineage lineage,
 io.cucumber.messages.types.Pickle pickle)