T
- public class FutureWTValue<A> extends java.lang.Object implements FutureWT<A>, TransformerValue<A>, MonadicValue<A>, java.util.function.Supplier<A>, ConvertableFunctor<A>, Filterable<A>, Applicativable<A>, Matchable.ValueAndOptionalMatcher<A>
Applicativable.Applicatives, Applicativable.SemigroupApplyer<T>
Value.ValueImpl<T>
Convertable.SupplierToConvertable<T>
Modifier and Type | Method and Description |
---|---|
<U> FutureWTValue<U> |
cast(java.lang.Class<? extends U> type)
Cast all elements in a stream to a given type, possibly throwing a
ClassCastException . |
<R> FutureWTValue<R> |
empty() |
static <T> FutureWTValue<T> |
emptyOptional() |
MaybeTValue<A> |
filter(java.util.function.Predicate<? super A> test)
Filter the wrapped Maybe
|
MaybeTValue<A> |
filterNot(java.util.function.Predicate<? super A> fn)
Remove any elements for which the predicate holds (inverse operation to filter)
e.g.
|
<B> FutureWTValue<B> |
flatMap(java.util.function.Function<? super A,? extends MonadicValue<? extends B>> f) |
<B> FutureWTValue<B> |
flatMapT(java.util.function.Function<? super A,FutureWTValue<B>> f)
Flat Map the wrapped CompletableFuture
|
static <A> FutureWTValue<A> |
fromAnyM(AnyMValue<A> anyM)
|
static <A,V extends MonadicValue<FutureW<A>>> |
fromValue(V monadicValue) |
A |
get() |
boolean |
isFuturePresent() |
boolean |
isValuePresent() |
java.util.Iterator<A> |
iterator() |
static <U,R> java.util.function.Function<FutureWTValue<U>,FutureWTValue<R>> |
lift(java.util.function.Function<? super U,? extends R> fn)
Lift a function into one that accepts and returns an CompletableFutureT
This allows multiple monad types to add functionality to existing functions and methods
e.g.
|
static <U1,U2,R> java.util.function.BiFunction<FutureWTValue<U1>,FutureWTValue<U2>,FutureWTValue<R>> |
lift2(java.util.function.BiFunction<? super U1,? super U2,? extends R> fn)
Lift a BiFunction into one that accepts and returns CompletableFutureTs
This allows multiple monad types to add functionality to existing functions and methods
e.g.
|
<B> FutureWTValue<B> |
map(java.util.function.Function<? super A,? extends B> f)
Map the wrapped CompletableFuture
|
MaybeTValue<A> |
notNull()
Filter elements retaining only values which are not null
|
static <A> FutureWTValue<A> |
of(AnyMValue<FutureW<A>> monads)
Construct an CompletableFutureT from an AnyM that wraps a monad containing CompletableFutures
|
static <A> FutureWTValue<A> |
of(FutureW<A> monads) |
<U> MaybeTValue<U> |
ofType(java.lang.Class<? extends U> type)
Keep only those elements in a stream that are of a given type.
|
<R> FutureWTValue<R> |
patternMatch(java.util.function.Function<Matchable.CheckValue1<A,R>,Matchable.CheckValue1<A,R>> case1,
java.util.function.Supplier<? extends R> otherwise)
Transform the elements of this Stream with a Pattern Matching case and default value
|
FutureWTValue<A> |
peek(java.util.function.Consumer<? super A> peek)
Peek at the current value of the CompletableFuture
|
ReactiveSeq<A> |
stream() |
void |
subscribe(org.reactivestreams.Subscriber<? super A> s) |
boolean |
test(A t) |
java.lang.String |
toString() |
<R> FutureWTValue<R> |
trampoline(java.util.function.Function<? super A,? extends Trampoline<? extends R>> mapper)
Performs a map operation that can call a recursive method without running out of stack space
|
<R> FutureWTValue<R> |
unit(R value) |
AnyMValue<FutureW<A>> |
unwrap() |
FutureW<A> |
value() |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
bind, emptyList, fromAnyM, fromAnyMSeq, fromAnyMValue, fromFuture, fromIterable, fromIterableValue, fromOptional, fromPublisher, fromStream, of
futureStream, getStreamable, isEmpty, jdkStream, reactiveSeq, reveresedJDKStream, reveresedStream
anyM, coflatMap, isPresent, nest
ap, ap, ap1, ap2, ap3, ap4, ap5
fold, fold, generate, iterate, mapReduce, mkString, newSubscriber, of, toDequeX, toEvalAlways, toEvalLater, toEvalNow, toFeatureToggle, toFutureStream, toFutureStream, toIor, toLazyImmutable, toListX, toMaybe, toMutable, toPBagX, toPOrderedSetX, toPQueueX, toPSetX, toPStackX, toPVectorX, toQueueX, toSetX, toSimpleReact, toSimpleReact, toSortedSetX, toTry, toTry, toTry, toXor, toXor, unapply, visit
endsWith, endsWithIterable, findAny, findFirst, firstValue, foldable, foldRight, foldRight, foldRight, foldRightMapToType, get, groupBy, headAndTail, join, join, join, mapReduce, print, print, printErr, printOut, reduce, reduce, reduce, reduce, reduce, reduce, reduce, schedule, scheduleFixedDelay, scheduleFixedRate, single, single, singleOptional, startsWith, startsWithIterable, toConcurrentLazyCollection, toConcurrentLazyStreamable, toLazyCollection, validate, visit, visit, xMatch
fromSupplier, orElse, orElseGet, orElseThrow, toAtomicReference, toCompletableFuture, toCompletableFutureAsync, toCompletableFutureAsync, toFutureW, toList, toOptional, toOptionalAtomicReference, toStream
toOptional, visit
matches
public FutureW<A> value()
value
in interface TransformerValue<A>
public boolean isValuePresent()
isValuePresent
in interface TransformerValue<A>
public MaybeTValue<A> filter(java.util.function.Predicate<? super A> test)
MaybeT.of(AnyM.fromStream(Maybe.of(10))
.filter(t->t!=10);
//MaybeT<AnyMValue<Stream<Maybe.empty>>>
filter
in interface FutureWT<A>
filter
in interface TransformerValue<A>
filter
in interface Filterable<A>
test
- Predicate to filter the wrapped Maybepublic FutureWTValue<A> peek(java.util.function.Consumer<? super A> peek)
CompletableFutureT.of(AnyM.fromStream(Arrays.asCompletableFuture(10))
.peek(System.out::println);
//prints 10
public <B> FutureWTValue<B> map(java.util.function.Function<? super A,? extends B> f)
CompletableFutureT.of(AnyM.fromStream(Arrays.asCompletableFuture(10))
.map(t->t=t+1);
//CompletableFutureT<AnyMValue<Stream<CompletableFuture[11]>>>
map
in interface FutureWT<A>
map
in interface TransformerValue<A>
map
in interface ConvertableFunctor<A>
map
in interface Functor<A>
map
in interface MonadicValue<A>
f
- Mapping function for the wrapped CompletableFuturepublic <B> FutureWTValue<B> flatMapT(java.util.function.Function<? super A,FutureWTValue<B>> f)
CompletableFutureT.of(AnyM.fromStream(Arrays.asCompletableFuture(10))
.flatMap(t->CompletableFuture.completedFuture(20));
//CompletableFutureT<AnyMValue<Stream<CompletableFuture[20]>>>
f
- FlatMap functionpublic <B> FutureWTValue<B> flatMap(java.util.function.Function<? super A,? extends MonadicValue<? extends B>> f)
public static <U,R> java.util.function.Function<FutureWTValue<U>,FutureWTValue<R>> lift(java.util.function.Function<? super U,? extends R> fn)
Function<Integer,Integer> add2 = i -> i+2;
Function<CompletableFutureT<Integer>, CompletableFutureT<Integer>> optTAdd2 = CompletableFutureT.lift(add2);
Stream<Integer> withNulls = Stream.of(1,2,3);
AnyMValue<Integer> stream = AnyM.fromStream(withNulls);
AnyMValue<CompletableFuture<Integer>> streamOpt = stream.map(CompletableFuture::completedFuture);
List<Integer> results = optTAdd2.apply(CompletableFutureT.of(streamOpt))
.unwrap()
.<Stream<CompletableFuture<Integer>>>unwrap()
.map(CompletableFuture::join)
.collect(Collectors.toList());
//CompletableFuture.completedFuture(List[3,4]);
public static <U1,U2,R> java.util.function.BiFunction<FutureWTValue<U1>,FutureWTValue<U2>,FutureWTValue<R>> lift2(java.util.function.BiFunction<? super U1,? super U2,? extends R> fn)
BiFunction<Integer,Integer,Integer> add = (a,b) -> a+b;
BiFunction<CompletableFutureT<Integer>,CompletableFutureT<Integer>,CompletableFutureT<Integer>> optTAdd2 = CompletableFutureT.lift2(add);
Stream<Integer> withNulls = Stream.of(1,2,3);
AnyMValue<Integer> stream = AnyM.ofMonad(withNulls);
AnyMValue<CompletableFuture<Integer>> streamOpt = stream.map(CompletableFuture::completedFuture);
CompletableFuture<CompletableFuture<Integer>> two = CompletableFuture.completedFuture(CompletableFuture.completedFuture(2));
AnyMValue<CompletableFuture<Integer>> future= AnyM.fromCompletableFuture(two);
List<Integer> results = optTAdd2.apply(CompletableFutureT.of(streamOpt),CompletableFutureT.of(future))
.unwrap()
.<Stream<CompletableFuture<Integer>>>unwrap()
.map(CompletableFuture::join)
.collect(Collectors.toList());
//CompletableFuture.completedFuture(List[3,4,5]);
public static <A> FutureWTValue<A> fromAnyM(AnyMValue<A> anyM)
anyM
- AnyM that doesn't contain a monad wrapping an CompletableFuturepublic static <A> FutureWTValue<A> of(AnyMValue<FutureW<A>> monads)
monads
- AnyM that contains a monad wrapping an CompletableFuturepublic static <A> FutureWTValue<A> of(FutureW<A> monads)
public static <A,V extends MonadicValue<FutureW<A>>> FutureWTValue<A> fromValue(V monadicValue)
public java.lang.String toString()
toString
in class java.lang.Object
public A get()
get
in interface Convertable<A>
get
in interface java.util.function.Supplier<A>
public ReactiveSeq<A> stream()
public java.util.Iterator<A> iterator()
iterator
in interface Matchable.MatchableOptional<A>
iterator
in interface Matchable.ValueAndOptionalMatcher<A>
iterator
in interface Convertable<A>
iterator
in interface ToStream<A>
iterator
in interface java.lang.Iterable<A>
public void subscribe(org.reactivestreams.Subscriber<? super A> s)
public boolean isFuturePresent()
public boolean test(A t)
public <R> FutureWTValue<R> unit(R value)
unit
in interface TransformerValue<A>
unit
in interface MonadicValue<A>
unit
in interface Unit<A>
public <R> FutureWTValue<R> empty()
public static <T> FutureWTValue<T> emptyOptional()
emptyOptional
in interface FutureWT<A>
public <U> FutureWTValue<U> cast(java.lang.Class<? extends U> type)
Functor
ClassCastException
.
// ClassCastException ReactiveSeq.of(1, "a", 2, "b", 3).cast(Integer.class)public <R> FutureWTValue<R> trampoline(java.util.function.Function<? super A,? extends Trampoline<? extends R>> mapper)
Functor
ReactiveSeq.of(10,20,30,40)
.trampoline(i-> fibonacci(i))
.forEach(System.out::println);
Trampoline<Long> fibonacci(int i){
return fibonacci(i,1,0);
}
Trampoline<Long> fibonacci(int n, long a, long b) {
return n == 0 ? Trampoline.done(b) : Trampoline.more( ()->fibonacci(n-1, a+b, a));
}
55
6765
832040
102334155
ReactiveSeq.of(10_000,200_000,3_000_000,40_000_000)
.trampoline(i-> fibonacci(i))
.forEach(System.out::println);
completes successfully
trampoline
in interface FutureWT<A>
trampoline
in interface TransformerValue<A>
trampoline
in interface Functor<A>
public <R> FutureWTValue<R> patternMatch(java.util.function.Function<Matchable.CheckValue1<A,R>,Matchable.CheckValue1<A,R>> case1, java.util.function.Supplier<? extends R> otherwise)
Functor
List<String> result = CollectionX.of(1,2,3,4)
.patternMatch(
c->c.valuesWhere(i->"even", (Integer i)->i%2==0 )
)
// CollectionX["odd","even","odd","even"]
patternMatch
in interface FutureWT<A>
patternMatch
in interface TransformerValue<A>
patternMatch
in interface Functor<A>
case1
- Function to generate a case (or chain of cases as a single case)otherwise
- Value if supplied case doesn't matchpublic <U> MaybeTValue<U> ofType(java.lang.Class<? extends U> type)
Filterable
// (1, 2, 3) ReactiveSeq.of(1, "a", 2, "b",3).ofType(Integer.class)
public MaybeTValue<A> filterNot(java.util.function.Predicate<? super A> fn)
Filterable
of(1,2,3).filter(i->i>2);
//[1,2]
public MaybeTValue<A> notNull()
Filterable
of(1,2,null,4).nonNull();
//[1,2,4]