AvailabilityProvider.AvailabilityHelper (Flink : 2.0-SNAPSHOT API)

java.lang.Object
- org.apache.flink.runtime.io.AvailabilityProvider.AvailabilityHelper

All Implemented Interfaces:

AvailabilityProvider

Enclosing interface:

AvailabilityProvider
```
public static final class AvailabilityProvider.AvailabilityHelper
extends Object
implements AvailabilityProvider
```
A availability implementation for providing the helpful functions of resetting the available/unavailable states.

Nested Class Summary
- Nested classes/interfaces inherited from interface org.apache.flink.runtime.io.AvailabilityProvider
  AvailabilityProvider.AvailabilityHelper

Field Summary
- Fields inherited from interface org.apache.flink.runtime.io.AvailabilityProvider
  AVAILABLE

Constructor Summary

Constructors
Constructor Description

AvailabilityHelper()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`CompletableFuture<?>`	`and(CompletableFuture<?> other)`
`CompletableFuture<?>`	`and(AvailabilityProvider other)`
`CompletableFuture<?>`	`getAvailableFuture()`
`CompletableFuture<?>`	`getUnavailableToResetAvailable()`	Returns the previously not completed future and resets the constant completed `AvailabilityProvider.AVAILABLE` as the current state.
`CompletableFuture<?>`	`getUnavailableToResetUnavailable()`	Creates a new uncompleted future as the current state and returns the previous uncompleted one.
`CompletableFuture<?>`	`or(CompletableFuture<?> other)`
`CompletableFuture<?>`	`or(AvailabilityProvider other)`
`void`	`resetAvailable()`	Resets the constant completed `AvailabilityProvider.AVAILABLE` as the current state.
`void`	`resetUnavailable()`	Judges to reset the current available state as unavailable.
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.flink.runtime.io.AvailabilityProvider
isApproximatelyAvailable, isAvailable

- Constructor Detail
  - AvailabilityHelper
```
public AvailabilityHelper()
```
- Method Detail
  - and
```
public CompletableFuture<?> and(CompletableFuture<?> other)
```
  - and
```
public CompletableFuture<?> and(AvailabilityProvider other)
```
  - or
```
public CompletableFuture<?> or(CompletableFuture<?> other)
```
  - or
```
public CompletableFuture<?> or(AvailabilityProvider other)
```
  - resetUnavailable
```
public void resetUnavailable()
```
    Judges to reset the current available state as unavailable.
  - resetAvailable
```
public void resetAvailable()
```
    Resets the constant completed AvailabilityProvider.AVAILABLE as the current state.
  - getUnavailableToResetAvailable
```
public CompletableFuture<?> getUnavailableToResetAvailable()
```
    Returns the previously not completed future and resets the constant completed AvailabilityProvider.AVAILABLE as the current state.
  - getUnavailableToResetUnavailable
```
public CompletableFuture<?> getUnavailableToResetUnavailable()
```
    Creates a new uncompleted future as the current state and returns the previous uncompleted one.
  - getAvailableFuture
```
public CompletableFuture<?> getAvailableFuture()
```
    Specified by:
    
    getAvailableFuture in interface AvailabilityProvider
    
    Returns:
    
    a future that is completed if the respective provider is available.
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object