Package net.datenwerke.gwt.client

Class Promise<T>

java.lang.Object

net.datenwerke.gwt.client.Promise<T>

Type Parameters:

T -

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

public class Promise<T>
extends Object

JS Promise for chaining async calls.

Usage: Promise.create((resolve, reject) -> { resolve.onInvoke(true); }).then(value -> { ConsoleLogger.info(value); }).then(() -> { throw new RuntimeException("Error"); }).catch_((err) -> { ConsoleLogger.info(err); }).finally_(() -> { ConsoleLogger.info("finally"); });

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	Promise.CallBack<T,R>
static interface	Promise.GwtCallback<T>
static interface	Promise.NoArgsCallback<R>
static interface	Promise.NoArgsNoReturnCallback
static interface	Promise.NoReturnCallback<T>

Constructor Summary

Constructors

Constructor	Description
Promise(Executor<T> executor)

Method Summary

Modifier and Type	Method	Description
<R> Promise<R>	catch_(Promise.CallBack<Object,R> callback)
<R> Promise<R>	catch_(Promise.NoArgsCallback<R> callback)
Promise<Void>	catch_(Promise.NoArgsNoReturnCallback callback)
Promise<Void>	catch_(Promise.NoReturnCallback<Object> callback)
static <ST> Promise<ST>	create(Executor<ST> executor)
<R> Promise<R>	finally_(Promise.CallBack<T,R> callback)
<R> Promise<R>	finally_(Promise.NoArgsCallback<R> callback)
Promise<Void>	finally_(Promise.NoArgsNoReturnCallback callback)
Promise<Void>	finally_(Promise.NoReturnCallback<T> callback)
static <ST> Promise<ST>	from(Promise.NoReturnCallback<Promise.GwtCallback<ST>> callback)
static Promise<Void>	reject()
static Promise<Void>	reject(Throwable reason)
static Promise<Void>	resolve()
static <ST> Promise<ST>	resolve(Promise<ST> promise)
static <ST> Promise<ST>	resolve(ST value)
<R> Promise<R>	then(Promise.CallBack<T,R> callback)
<R> Promise<R>	then(Promise.NoArgsCallback<R> callback)
Promise<Void>	then(Promise.NoArgsNoReturnCallback callback)
Promise<Void>	then(Promise.NoReturnCallback<T> callback)

Methods inherited from class java.lang.Object

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

Constructor Details

Promise

public Promise(Executor<T> executor)

Method Details

create

public static <ST> Promise<ST> create(Executor<ST> executor)

from

public static <ST> Promise<ST> from(Promise.NoReturnCallback<Promise.GwtCallback<ST>> callback)

resolve

public static Promise<Void> resolve()

resolve

public static <ST> Promise<ST> resolve(ST value)

resolve

public static <ST> Promise<ST> resolve(Promise<ST> promise)

reject

public static Promise<Void> reject()

reject

public static Promise<Void> reject(Throwable reason)

then

public <R> Promise<R> then(Promise.CallBack<T,R> callback)

then

public <R> Promise<R> then(Promise.NoArgsCallback<R> callback)

then

public Promise<Void> then(Promise.NoReturnCallback<T> callback)

then

public Promise<Void> then(Promise.NoArgsNoReturnCallback callback)

catch_

public <R> Promise<R> catch_(Promise.CallBack<Object,R> callback)

catch_

public <R> Promise<R> catch_(Promise.NoArgsCallback<R> callback)

catch_

public Promise<Void> catch_(Promise.NoReturnCallback<Object> callback)

catch_

public Promise<Void> catch_(Promise.NoArgsNoReturnCallback callback)

finally_

public <R> Promise<R> finally_(Promise.CallBack<T,R> callback)

finally_

public <R> Promise<R> finally_(Promise.NoArgsCallback<R> callback)

finally_

public Promise<Void> finally_(Promise.NoReturnCallback<T> callback)

finally_

public Promise<Void> finally_(Promise.NoArgsNoReturnCallback callback)