Package org.apache.sling.scripting.sightly.js.impl.async

Class AsyncContainer

java.lang.Object

org.apache.sling.scripting.sightly.js.impl.async.AsyncContainer

public class AsyncContainer
extends Object

Simple container for asynchronously provided values

Constructor Summary

Constructors

Constructor	Description
AsyncContainer()

Method Summary

Modifier and Type	Method	Description
void	addListener(UnaryCallback unaryCallback)	Add a listener that will receive the value in this container when it will be filled.
void	complete(Object value)	Complete this async container with a value
UnaryCallback	createCompletionCallback()	Create a callback that will complete this container
Object	getResult()	Get the result of this holder
boolean	isCompleted()	Check whether the container was completed with a value

Methods inherited from class java.lang.Object

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

Constructor Details

AsyncContainer

public AsyncContainer()

Method Details

addListener

public void addListener(UnaryCallback unaryCallback)

Add a listener that will receive the value in this container when it will be filled. If the container already has a value, the callback is called immediately.

Parameters:

unaryCallback - the callback that will receive the result

getResult

public Object getResult()

Get the result of this holder

Returns:

the holder result

Throws:

NoSuchElementException - if the result has not yet been set

isCompleted

public boolean isCompleted()

Check whether the container was completed with a value

Returns:

the completion status

complete

public void complete(Object value)

Complete this async container with a value

Parameters:

value - the result value

Throws:

IllegalStateException - if the container has been previously filled

createCompletionCallback

public UnaryCallback createCompletionCallback()

Create a callback that will complete this container

Returns:

the completion callback