Interface Gatherer.Integrator<A,T,R>
 Type Parameters:
A
 the type of state used by this integratorT
 the type of elements this integrator consumesR
 the type of results this integrator can produce
 All Known Subinterfaces:
Gatherer.Integrator.Greedy^{PREVIEW}<A,
T, R>
 Functional Interface:
 This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
Integrator
is a preview API of the Java platform.
Preview features may be removed in a future release, or upgraded to permanent features of the Java platform.
An Integrator receives elements and processes them,
optionally using the supplied state, and optionally sends incremental
results downstream.
 Since:
 22

Nested Class Summary
Modifier and TypeInterfaceDescriptionstatic interface
Gatherer.Integrator.Greedy^{PREVIEW}<A,
T, R> Preview.Greedy Integrators consume all their input, and may only relay that the downstream does not want more elements. 
Method Summary
Modifier and TypeMethodDescriptionboolean
integrate
(A state, T element, Gatherer.Downstream^{PREVIEW}<? super R> downstream) Performs an action given: the current state, the next element, and a downstream object; potentially inspecting and/or updating the state, optionally sending any number of elements downstream  and then returns whether more elements are to be consumed or not.static <A,
T, R> Gatherer.Integrator^{PREVIEW} <A, T, R> of
(Gatherer.Integrator^{PREVIEW}<A, T, R> integrator) Factory method for turning Integratorshaped lambdas into Integrators.static <A,
T, R> Gatherer.Integrator.Greedy^{PREVIEW} <A, T, R> ofGreedy
(Gatherer.Integrator.Greedy^{PREVIEW}<A, T, R> greedy) Factory method for turning Integratorshaped lambdas intoGatherer.Integrator.Greedy
^{PREVIEW} Integrators.

Method Details

integrate
Performs an action given: the current state, the next element, and a downstream object; potentially inspecting and/or updating the state, optionally sending any number of elements downstream  and then returns whether more elements are to be consumed or not. Parameters:
state
 The state to integrate intoelement
 The element to integratedownstream
 The downstream object of this integration Returns:
true
if subsequent integration is desired,false
if not

of
static <A,T, Gatherer.Integrator^{PREVIEW}<A,R> T, ofR> (Gatherer.Integrator^{PREVIEW}<A, T, R> integrator) Factory method for turning Integratorshaped lambdas into Integrators. Type Parameters:
A
 the type of state used by this integratorT
 the type of elements this integrator receivesR
 the type of results this integrator can produce Parameters:
integrator
 a lambda to create as Integrator Returns:
 the given lambda as an Integrator

ofGreedy
static <A,T, Gatherer.Integrator.Greedy^{PREVIEW}<A,R> T, ofGreedyR> (Gatherer.Integrator.Greedy^{PREVIEW}<A, T, R> greedy) Factory method for turning Integratorshaped lambdas intoGatherer.Integrator.Greedy
^{PREVIEW} Integrators. Type Parameters:
A
 the type of state used by this integratorT
 the type of elements this integrator receivesR
 the type of results this integrator can produce Parameters:
greedy
 a lambda to create as Integrator.Greedy Returns:
 the given lambda as a Greedy Integrator

Integrator
when preview features are enabled.