react4j.internal.arez

Class SchedulerUtil

java.lang.Object

react4j.internal.arez.SchedulerUtil

public final class SchedulerUtil
extends java.lang.Object

Utilities for interacting with the Arez scheduler.

Method Summary

Modifier and Type	Method and Description
static void	pauseUntilRenderLoopComplete() The first time an arez component is rendered it will lock the Arez scheduler and release the lock in the micro-task immediately following the task that prompted the render.

Methods inherited from class java.lang.Object

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

Method Detail

pauseUntilRenderLoopComplete

public static void pauseUntilRenderLoopComplete()

The first time an arez component is rendered it will lock the Arez scheduler and release the lock in the micro-task immediately following the task that prompted the render. If this is not done it is possible that Arez can re-trigger a component render when the scheduler is triggered after the tracked render completes but before the render method has returned to the react runtime. This results in error message from react as a setState()/forceRender() was invoked while still within a render() method.

NOTE: While render methods are read-only transactions, they can un-observe components with ArezComponent.disposeOnDeactivate()set to true that would result in the component being disposed and triggering an update that would mark particular React Components/Observers as STALE and trigger a re-render of that component.