org.uberfire.client.promise

Class Promises

java.lang.Object

org.uberfire.client.promise.Promises

@Dependent
public class Promises
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Promises.Error<T>

Constructor Summary

Constructors

Constructor and Description
Promises()

Method Summary

Modifier and Type	Method and Description
<T,O> elemental2.promise.Promise<O>	all(List<T> objects, Function<T,elemental2.promise.Promise<O>> f) Maps the objects to Promises using the provided function then behaves just like all(elemental2.promise.Promise<O>...).
<O> elemental2.promise.Promise<O>	all(elemental2.promise.Promise<O>... promises) Returns a resolved Promise when every Promise in the list is resolved.
<V,T> elemental2.promise.Promise<T>	catchOrExecute(Object o, Function<RuntimeException,elemental2.promise.Promise<T>> catchBlock, Function<V,elemental2.promise.Promise<T>> expectedRejectionHandler) To be used inside Promise.catch_(elemental2.promise.Promise.CatchOnRejectedCallbackFn<? extends V>) blocks.
<T> elemental2.promise.Promise<T>	create(elemental2.promise.Promise.PromiseExecutorCallbackFn<T> executor)
void	init()
<T,S> elemental2.promise.Promise<S>	promisify(org.jboss.errai.common.client.api.Caller<T> caller, Consumer<T> call) Promisifies a Caller remote call.
<T,S> elemental2.promise.Promise<S>	promisify(org.jboss.errai.common.client.api.Caller<T> caller, Function<T,S> call) Promisifies a Caller remote call.
<O> elemental2.promise.Promise<O>	reduce(elemental2.promise.Promise<O> identity, Collection<elemental2.promise.Promise<O>> promises, BinaryOperator<elemental2.promise.Promise<O>> accumulator) Reduces a list of promises using the accumulator passed.
<T,O> elemental2.promise.Promise<O>	reduceLazily(List<T> objects, Function<T,elemental2.promise.Promise<O>> f) Maps the objects to Promises using the provided function but only execute the Promises when the previous Promise is resolved.
<T,O> elemental2.promise.Promise<O>	reduceLazilyChaining(List<T> objects, BiFunction<Supplier<elemental2.promise.Promise<O>>,T,elemental2.promise.Promise<O>> f) Behaves just like reduceLazily(java.util.List<T>, java.util.function.Function<T, elemental2.promise.Promise<O>>) but exposes a reference to the Promise chain as a parameter to the mapping function.
<T> elemental2.promise.Promise<T>	reject(Object object)
<T> elemental2.promise.Promise<T>	resolve()
<T> elemental2.promise.Promise<T>	resolve(T object)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Promises

public Promises()

Method Detail

init

@PostConstruct
public void init()

all

@SafeVarargs
public final <O> elemental2.promise.Promise<O> all(elemental2.promise.Promise<O>... promises)

Returns a resolved Promise when every Promise in the list is resolved. If any Promise is rejected, the resulting Promise will be rejected.

all

public <T,O> elemental2.promise.Promise<O> all(List<T> objects,
                                               Function<T,elemental2.promise.Promise<O>> f)

Maps the objects to Promises using the provided function then behaves just like all(elemental2.promise.Promise<O>...).

reduce

public final <O> elemental2.promise.Promise<O> reduce(elemental2.promise.Promise<O> identity,
                                                      Collection<elemental2.promise.Promise<O>> promises,
                                                      BinaryOperator<elemental2.promise.Promise<O>> accumulator)

Reduces a list of promises using the accumulator passed.

reduceLazily

public <T,O> elemental2.promise.Promise<O> reduceLazily(List<T> objects,
                                                        Function<T,elemental2.promise.Promise<O>> f)

Maps the objects to Promises using the provided function but only execute the Promises when the previous Promise is resolved. If a rejection occurs in the middle of the chain, the remaining Promises are not executed and the resulting Promise is rejected.

reduceLazilyChaining

public <T,O> elemental2.promise.Promise<O> reduceLazilyChaining(List<T> objects,
                                                                BiFunction<Supplier<elemental2.promise.Promise<O>>,T,elemental2.promise.Promise<O>> f)

Behaves just like reduceLazily(java.util.List<T>, java.util.function.Function<T, elemental2.promise.Promise<O>>) but exposes a reference to the Promise chain as a parameter to the mapping function.

promisify

public <T,S> elemental2.promise.Promise<S> promisify(org.jboss.errai.common.client.api.Caller<T> caller,
                                                     Function<T,S> call)

Promisifies a Caller remote call. If an exception is thrown inside the call function, the resulting Promise is rejected with a Promises.Error instance.

promisify

public <T,S> elemental2.promise.Promise<S> promisify(org.jboss.errai.common.client.api.Caller<T> caller,
                                                     Consumer<T> call)

Promisifies a Caller remote call. If an exception is thrown inside the call function, the resulting Promise is rejected with a Promises.Error instance.

catchOrExecute

public <V,T> elemental2.promise.Promise<T> catchOrExecute(Object o,
                                                          Function<RuntimeException,elemental2.promise.Promise<T>> catchBlock,
                                                          Function<V,elemental2.promise.Promise<T>> expectedRejectionHandler)

To be used inside Promise.catch_(elemental2.promise.Promise.CatchOnRejectedCallbackFn<? extends V>) blocks. Decides whether to process a RuntimeException that caused a prior Promise rejection or to process an expected object rejected by a prior Promise. To proceed with default error handlers, reject the untreated exception inside the catchBlock function.

resolve

public <T> elemental2.promise.Promise<T> resolve()

resolve

public <T> elemental2.promise.Promise<T> resolve(T object)

reject

public <T> elemental2.promise.Promise<T> reject(Object object)

create

public <T> elemental2.promise.Promise<T> create(elemental2.promise.Promise.PromiseExecutorCallbackFn<T> executor)