public class SingleHelper extends Object
| Modifier and Type | Field and Description |
|---|---|
static SingleObserver<?> |
NULL_OBSERVER |
| Constructor and Description |
|---|
SingleHelper() |
| Modifier and Type | Method and Description |
|---|---|
static <T> SingleObserver<T> |
nullObserver() |
static <T> Future<T> |
toFuture(Single<T> single)
Adapts an RxJava2
Single<T> to a Vert.x Future. |
static <T,U> Future<U> |
toFuture(Single<T> single,
java.util.function.Function<T,U> adapter)
Like
toFuture(Single) but with an adapter of the result. |
static <T> SingleObserver<T> |
toObserver(Handler<AsyncResult<T>> handler)
Adapts an Vert.x
Handler<AsyncResult<T>> to an RxJava2 SingleObserver. |
static <T> Single<T> |
toSingle(java.util.function.Consumer<Handler<AsyncResult<T>>> handler)
Returns a
Single that, when subscribed, uses the provided handler to adapt a callback-based asynchronous method. |
static <T> SingleTransformer<Buffer,T> |
unmarshaller(Class<T> mappedType) |
static <T> SingleTransformer<Buffer,T> |
unmarshaller(Class<T> mappedType,
ObjectCodec mapper) |
static <T> SingleTransformer<Buffer,T> |
unmarshaller(TypeReference<T> mappedTypeRef) |
static <T> SingleTransformer<Buffer,T> |
unmarshaller(TypeReference<T> mappedTypeRef,
ObjectCodec mapper) |
public static final SingleObserver<?> NULL_OBSERVER
public static <T> SingleObserver<T> nullObserver()
SingleObserver that does nothingpublic static <T> Single<T> toSingle(java.util.function.Consumer<Handler<AsyncResult<T>>> handler)
Single that, when subscribed, uses the provided handler to 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 2 Single does not allow null values.
handler - the code executed when the returned Single is subscribedpublic static <T> SingleObserver<T> toObserver(Handler<AsyncResult<T>> handler)
Handler<AsyncResult<T>> to an RxJava2 SingleObserver.
The returned observer can be subscribed to an Single.subscribe(SingleObserver).
handler - the handler to adaptpublic static <T> Future<T> toFuture(Single<T> single)
Single<T> to a Vert.x Future.
The single will be immediately subscribed and the returned future will be updated with the result of the single.
single - the single to adaptpublic static <T,U> Future<U> toFuture(Single<T> single, java.util.function.Function<T,U> adapter)
toFuture(Single) but with an adapter of the result.public static <T> SingleTransformer<Buffer,T> unmarshaller(Class<T> mappedType)
public static <T> SingleTransformer<Buffer,T> unmarshaller(TypeReference<T> mappedTypeRef)
public static <T> SingleTransformer<Buffer,T> unmarshaller(Class<T> mappedType, ObjectCodec mapper)
public static <T> SingleTransformer<Buffer,T> unmarshaller(TypeReference<T> mappedTypeRef, ObjectCodec mapper)
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