com.facebook.buck.core.graph.transformation.composition

Interface Composer<Key1,Result1>

Type Parameters:

Key1 - the key type of the base computation

Result1 - the result type of the base computation

All Known Subinterfaces:

KeyComposer<Key1,Result1,Key2>, RightComposingComputation.RightComposer<Key1,Result1,RightKey,RightResult>

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface Composer<Key1,Result1>

The function for composing GraphComputations

Method Summary

Modifier and Type	Method and Description
com.google.common.collect.ImmutableSet<? extends ComputeKey<?>>	transitionWith(Key1 key, Result1 result)

Method Detail

transitionWith

com.google.common.collect.ImmutableSet<? extends ComputeKey<?>> transitionWith(Key1 key,
                                                                               Result1 result)
                                                                        throws Exception

Parameters:

key - the key from the base computation

result - the result corresponding to the key of the base computation

Returns:

the set of dependencies of the composed transformation given the key and result from the base computation

Throws:

Exception - as appropriate when computing dependencies.