Package io.vertx.reactivex
Class SingleHelper
- java.lang.Object
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- io.vertx.reactivex.SingleHelper
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public class SingleHelper extends Object
- Author:
- Julien Viet
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Constructor Summary
Constructors Constructor Description SingleHelper()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static <T> Future<T>toFuture(Single<T> single)Adapts an RxJava2Single<T>to a Vert.xFuture.static <T,U>
Future<U>toFuture(Single<T> single, Function<T,U> adapter)LiketoFuture(Single)but with anadapterof the result.static <T> SingleObserver<T>toObserver(Handler<AsyncResult<T>> handler)Adapts an Vert.xHandler<AsyncResult<T>>to an RxJava2SingleObserver.static <T> Single<T>toSingle(Consumer<Handler<AsyncResult<T>>> handler)Returns aSinglethat, when subscribed, uses the providedhandlerto adapt a callback-based asynchronous method.static <T> SingleTransformer<Buffer,T>unmarshaller(TypeReference<T> mappedTypeRef)static <T> SingleTransformer<Buffer,T>unmarshaller(TypeReference<T> mappedTypeRef, ObjectCodec mapper)static <T> SingleTransformer<Buffer,T>unmarshaller(Class<T> mappedType)static <T> SingleTransformer<Buffer,T>unmarshaller(Class<T> mappedType, ObjectCodec mapper)
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Method Detail
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toSingle
public static <T> Single<T> toSingle(Consumer<Handler<AsyncResult<T>>> handler)
Returns aSinglethat, when subscribed, uses the providedhandlerto adapt a callback-based asynchronous method.For example:
io.vertx.core.Vertx vertx = Vertx.vertx(); Single<String> deploymentId = SingleHelper.toSingle(handler -> vertx.deployVerticle("org.acme.MyVerticle", handler));This is useful when using RxJava without the Vert.x Rxified API or your own asynchronous methods.
The asynchronous method result must not be
null, as an RxJava 2Singledoes not allownullvalues.- Parameters:
handler- the code executed when the returnedSingleis subscribed
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toObserver
public static <T> SingleObserver<T> toObserver(Handler<AsyncResult<T>> handler)
Adapts an Vert.xHandler<AsyncResult<T>>to an RxJava2SingleObserver.The returned observer can be subscribed to an
Single.subscribe(SingleObserver).- Parameters:
handler- the handler to adapt- Returns:
- the observer
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toFuture
public static <T> Future<T> toFuture(Single<T> single)
Adapts an RxJava2Single<T>to a Vert.xFuture.The single will be immediately subscribed and the returned future will be updated with the result of the single.
- Parameters:
single- the single to adapt- Returns:
- the future
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toFuture
public static <T,U> Future<U> toFuture(Single<T> single, Function<T,U> adapter)
LiketoFuture(Single)but with anadapterof the result.
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unmarshaller
public static <T> SingleTransformer<Buffer,T> unmarshaller(Class<T> mappedType)
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unmarshaller
public static <T> SingleTransformer<Buffer,T> unmarshaller(TypeReference<T> mappedTypeRef)
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unmarshaller
public static <T> SingleTransformer<Buffer,T> unmarshaller(Class<T> mappedType, ObjectCodec mapper)
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unmarshaller
public static <T> SingleTransformer<Buffer,T> unmarshaller(TypeReference<T> mappedTypeRef, ObjectCodec mapper)
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