Package com.vaadin.flow.component.internal

Class DeadlockDetectingCompletableFuture<T>

java.lang.Object

java.util.concurrent.CompletableFuture<T>

com.vaadin.flow.component.internal.DeadlockDetectingCompletableFuture<T>

All Implemented Interfaces:

CompletionStage<T>, Future<T>

public class DeadlockDetectingCompletableFuture<T>
extends CompletableFuture<T>

A completable future that will throw from blocking operations if the current thread holds the session lock.

This is used for pending JS results because a response providing the value cannot be processed while the session is locked.

Throwing is unfortunately only practical for this immediate instance, but there isn't any sensible way of also intercepting for instances derived using e.g. thenAccept.

For internal use only. May be renamed or removed in a future release.

Since:

2.1.4

Nested Class Summary

Nested classes/interfaces inherited from class java.util.concurrent.CompletableFuture

CompletableFuture.AsynchronousCompletionTask

Constructor Summary

Constructors

Constructor	Description
DeadlockDetectingCompletableFuture(VaadinSession session)	Creates a new deadlock detecting completable future tied to the given session.

Method Summary

Modifier and Type	Method	Description
T	get()
T	get(long timeout, TimeUnit unit)
T	join()

Methods inherited from class java.util.concurrent.CompletableFuture

acceptEither, acceptEitherAsync, acceptEitherAsync, allOf, anyOf, applyToEither, applyToEitherAsync, applyToEitherAsync, cancel, complete, completeAsync, completeAsync, completedFuture, completedStage, completeExceptionally, completeOnTimeout, copy, defaultExecutor, delayedExecutor, delayedExecutor, exceptionally, failedFuture, failedStage, getNow, getNumberOfDependents, handle, handleAsync, handleAsync, isCancelled, isCompletedExceptionally, isDone, minimalCompletionStage, newIncompleteFuture, obtrudeException, obtrudeValue, orTimeout, runAfterBoth, runAfterBothAsync, runAfterBothAsync, runAfterEither, runAfterEitherAsync, runAfterEitherAsync, runAsync, runAsync, supplyAsync, supplyAsync, thenAccept, thenAcceptAsync, thenAcceptAsync, thenAcceptBoth, thenAcceptBothAsync, thenAcceptBothAsync, thenApply, thenApplyAsync, thenApplyAsync, thenCombine, thenCombineAsync, thenCombineAsync, thenCompose, thenComposeAsync, thenComposeAsync, thenRun, thenRunAsync, thenRunAsync, toCompletableFuture, toString, whenComplete, whenCompleteAsync, whenCompleteAsync

Methods inherited from class java.lang.Object

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

Constructor Detail

DeadlockDetectingCompletableFuture

public DeadlockDetectingCompletableFuture(VaadinSession session)

Creates a new deadlock detecting completable future tied to the given session.

Parameters:

session - the session to use, or null to not do any deadlock checking

Method Detail

get

public T get()
      throws InterruptedException,
             ExecutionException

Specified by:

get in interface Future<T>

Overrides:

get in class CompletableFuture<T>

Throws:

InterruptedException

ExecutionException

get

public T get(long timeout,
             TimeUnit unit)
      throws InterruptedException,
             ExecutionException,
             TimeoutException

Specified by:

get in interface Future<T>

Overrides:

get in class CompletableFuture<T>

Throws:

InterruptedException

ExecutionException

TimeoutException

join

public T join()

Overrides:

join in class CompletableFuture<T>