public class MaybeHelper extends Object
Constructor and Description |
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MaybeHelper() |
Modifier and Type | Method and Description |
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static <T> MaybeObserver<T> |
nullObserver() |
static <T> Future<T> |
toFuture(Maybe<T> maybe)
Adapts an RxJava2
Maybe<T> to a Vert.x Future . |
static <T,U> Future<U> |
toFuture(Maybe<T> maybe,
java.util.function.Function<T,U> adapter)
Like
toFuture(Maybe) but with an adapter of the result. |
static <T> Maybe<T> |
toMaybe(java.util.function.Consumer<Handler<AsyncResult<T>>> handler)
Returns a
Maybe that, when subscribed, uses the provided handler to adapt a callback-based asynchronous method. |
static <T> MaybeObserver<T> |
toObserver(Handler<AsyncResult<T>> handler)
Adapts an Vert.x
Handler<AsyncResult<T>> to an RxJava2 MaybeObserver . |
static <T> MaybeTransformer<Buffer,T> |
unmarshaller(Class<T> mappedType) |
static <T> MaybeTransformer<Buffer,T> |
unmarshaller(Class<T> mappedType,
ObjectCodec mapper) |
static <T> MaybeTransformer<Buffer,T> |
unmarshaller(TypeReference<T> mappedTypeRef) |
static <T> MaybeTransformer<Buffer,T> |
unmarshaller(TypeReference<T> mappedTypeRef,
ObjectCodec mapper) |
public static <T> MaybeObserver<T> nullObserver()
MaybeObserver
that does nothingpublic static <T> Maybe<T> toMaybe(java.util.function.Consumer<Handler<AsyncResult<T>>> handler)
Maybe
that, when subscribed, uses the provided handler
to adapt a callback-based asynchronous method.
For example:
io.vertx.core.Vertx vertx = Vertx.vertx();
Maybe<String> blockingMethodResult = MaybeHelper.toMaybe(handler -> vertx.<String>executeBlocking(fut -> fut.complete(invokeBlocking()), handler));
This is useful when using RxJava without the Vert.x Rxified API or your own asynchronous methods.
handler
- the code executed when the returned Maybe
is subscribedpublic static <T> MaybeObserver<T> toObserver(Handler<AsyncResult<T>> handler)
Handler<AsyncResult<T>>
to an RxJava2 MaybeObserver
.
The returned observer can be subscribed to an Maybe.subscribe(MaybeObserver)
.
handler
- the handler to adaptpublic static <T> Future<T> toFuture(Maybe<T> maybe)
Maybe<T>
to a Vert.x Future
.
The maybe will be immediately subscribed and the returned future will be updated with the result of the single.
maybe
- the single to adaptpublic static <T,U> Future<U> toFuture(Maybe<T> maybe, java.util.function.Function<T,U> adapter)
toFuture(Maybe)
but with an adapter
of the result.public static <T> MaybeTransformer<Buffer,T> unmarshaller(Class<T> mappedType)
public static <T> MaybeTransformer<Buffer,T> unmarshaller(TypeReference<T> mappedTypeRef)
public static <T> MaybeTransformer<Buffer,T> unmarshaller(Class<T> mappedType, ObjectCodec mapper)
public static <T> MaybeTransformer<Buffer,T> unmarshaller(TypeReference<T> mappedTypeRef, ObjectCodec mapper)
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