Package org.infinispan.interceptors.impl

Class QueueAsyncInvocationStage

java.lang.Object

org.infinispan.interceptors.InvocationStage

org.infinispan.interceptors.impl.SimpleAsyncInvocationStage

org.infinispan.interceptors.impl.QueueAsyncInvocationStage

All Implemented Interfaces:

BiConsumer<Object,Throwable>, InvocationCallback

public class QueueAsyncInvocationStage
extends SimpleAsyncInvocationStage
implements BiConsumer<Object,Throwable>, InvocationCallback

Invocation stage representing a computation that may or may not be done yet.

It stores handler objects in a queue instead of creating a new instance every time a handler is added. The queue may be frozen based on internal conditions, like executing the last handler or reaching the capacity of the queue, and adding a handler will create a new instance. The queue will also be frozen when SimpleAsyncInvocationStage.toCompletableFuture() is invoked, to make that future behave like a regular CompletableFuture.

When the queue is not frozen, adding a handler will change the result of the current stage. When the queue is frozen, adding a handler may actually execute the handler synchronously.

Since:

9.0

Author:

Dan Berindei

Field Summary

Fields inherited from class org.infinispan.interceptors.impl.SimpleAsyncInvocationStage

future

Constructor Summary

Constructors

Constructor	Description
QueueAsyncInvocationStage(InvocationContext ctx, VisitableCommand command, CompletableFuture<?> valueFuture, InvocationCallback function)

Method Summary

Modifier and Type	Method	Description
void	accept(Object rv, Throwable throwable)
Object	addCallback(InvocationContext ctx, VisitableCommand command, InvocationCallback function)	After the current stage completes, invoke function and return its result.
Object	apply(InvocationContext rCtx, VisitableCommand rCommand, Object rv, Throwable throwable)	Process the result or the exception from an invocation stage and either return a simple value, return a new InvocationStage, or throw an exception.
String	toString()

Methods inherited from class org.infinispan.interceptors.impl.SimpleAsyncInvocationStage

get, isDone, thenReturn, toCompletableFuture

Methods inherited from class org.infinispan.interceptors.InvocationStage

andExceptionally, andExceptionallyMakeStage, andFinally, andFinallyMakeStage, andHandle, andHandleMakeStage, completedFalseStage, completedNullStage, completedTrueStage, makeStage, thenAccept, thenAcceptMakeStage, thenApply, thenApplyMakeStage

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.BiConsumer

andThen

Constructor Details

QueueAsyncInvocationStage

public QueueAsyncInvocationStage(InvocationContext ctx,
 VisitableCommand command,
 CompletableFuture<?> valueFuture,
 InvocationCallback function)

Method Details

addCallback

public Object addCallback(InvocationContext ctx,
 VisitableCommand command,
 InvocationCallback function)

Description copied from class: InvocationStage

After the current stage completes, invoke function and return its result.

The result may be either a plain value, or a new InvocationStage. If function throws an exception, the result InvocationStage will complete with the same exception.

Overrides:

addCallback in class SimpleAsyncInvocationStage

accept

public void accept(Object rv,
 Throwable throwable)

Specified by:

accept in interface BiConsumer<Object,Throwable>

apply

public Object apply(InvocationContext rCtx,
 VisitableCommand rCommand,
 Object rv,
 Throwable throwable)
             throws Throwable

Description copied from interface: InvocationCallback

Process the result or the exception from an invocation stage and either return a simple value, return a new InvocationStage, or throw an exception.

Specified by:

apply in interface InvocationCallback

Throws:

Throwable

toString

public String toString()

Overrides:

toString in class SimpleAsyncInvocationStage