java.lang.Object
- com.oracle.coherence.concurrent.executor.subscribers.RecordingSubscriber<T>

Type Parameters:

T - the type of result received

All Implemented Interfaces:

Task.Subscriber<T>
```
public class RecordingSubscriber<T>
extends Object
implements Task.Subscriber<T>
```
A Task.Subscriber that records iteration with a Task.Coordinator.

Author:

bo

Field Summary

Fields
Modifier and Type	Field	Description
`protected AtomicBoolean`	`f_fCompleted`	Completed flag.
`protected AtomicBoolean`	`f_fErrored`	Error flag.
`protected AtomicBoolean`	`f_fUsed`	Tracks whether this `RecordingSubscriber` has ever been subscribed to a `Task.Coordinator`.
`protected CopyOnWriteArrayList<T>`	`f_listItems`	Items received by this subscriber.
`protected AtomicReference<Task.Subscription<? extends T>>`	`f_subscription`	The `Task.Subscription`.
`protected AtomicReference<Throwable>`	`f_throwable`	Failure cause.

Constructor Summary

Constructors
Constructor Description

RecordingSubscriber()
Constructs a RecordingSubscriber.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`T`	`getFirst()`	Returns the first item that was received the by the `Task.Subscriber`.
`T`	`getLast()`	Returns the last item that was received the by the `Task.Subscriber`.
`Throwable`	`getThrowable()`	Returns the `Throwable` that completed the `Task` or `null` if the `Task` is still active or was not completed with an exception.
`boolean`	`isCompleted()`	Determines if the `RecordingSubscriber` was completed by a `Task.Coordinator`.
`boolean`	`isError()`	Determines if the `RecordingSubscriber` was published an error by a `Task.Coordinator`.
`boolean`	`isSubscribed()`	Determines if the `RecordingSubscriber` has been subscribed to a `Task.Coordinator`.
`void`	`onComplete()`	Invoked by a `Task.Coordinator` when it is known that no additional `Task.Subscriber` method invocations will occur or has already been terminated by an error.
`void`	`onError(Throwable throwable)`	Invoked by a `Task.Coordinator` when an unrecoverable error was encountered, after which no other `Task.Subscriber` methods are invoked.
`void`	`onNext(T item)`	Invoked when a `Task.Coordinator` has produced an item for consumption.
`void`	`onSubscribe(Task.Subscription<? extends T> subscription)`	Invoked prior to the `Task.Subscriber` methods `Task.Subscriber.onComplete()`, `Task.Subscriber.onError(Throwable)` and `Task.Subscriber.onNext(Object)` being invoked for a `Task.Subscription` to a `Task.Coordinator`.
`boolean`	`received(T item)`	Determines if the specified item was received.
`int`	`size()`	Determines the number of items the `RecordingSubscriber` has received.

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

- Field Detail
  - f_fUsed
```
protected final AtomicBoolean f_fUsed
```
    Tracks whether this RecordingSubscriber has ever been subscribed to a Task.Coordinator. RecordingSubscribers are not reusable.
  - f_fCompleted
```
protected final AtomicBoolean f_fCompleted
```
    Completed flag.
  - f_fErrored
```
protected final AtomicBoolean f_fErrored
```
    Error flag.
  - f_throwable
```
protected final AtomicReference<Throwable> f_throwable
```
    Failure cause.
  - f_listItems
```
protected final CopyOnWriteArrayList<T> f_listItems
```
    Items received by this subscriber.
  - f_subscription
```
protected final AtomicReference<Task.Subscription<? extends T>> f_subscription
```
    The Task.Subscription.
- Constructor Detail
  - RecordingSubscriber
```
public RecordingSubscriber()
```
    Constructs a RecordingSubscriber.
- Method Detail
  - onComplete
```
public void onComplete()
```
    Description copied from interface: Task.Subscriber
    
    Invoked by a Task.Coordinator when it is known that no additional Task.Subscriber method invocations will occur or has already been terminated by an error.
    After this method is invoked no other Task.Subscriber methods will be called.
    If this method throws an exception, the Task.Subscriber will be closed.
    
    Specified by:
    
    onComplete in interface Task.Subscriber<T>
  - onError
```
public void onError(Throwable throwable)
```
    Description copied from interface: Task.Subscriber
    
    Invoked by a Task.Coordinator when an unrecoverable error was encountered, after which no other Task.Subscriber methods are invoked.
    If this method throws an exception, the Task.Subscriber will be closed.
    
    Specified by:
    
    onError in interface Task.Subscriber<T>
    
    Parameters:
    
    throwable - the error
  - onNext
```
public void onNext(T item)
```
    Description copied from interface: Task.Subscriber
    
    Invoked when a Task.Coordinator has produced an item for consumption.
    If this method throws an exception, the Task.Subscriber will be closed.
    
    Specified by:
    
    onNext in interface Task.Subscriber<T>
    
    Parameters:
    
    item - the item (possibly null)
  - onSubscribe
```
public void onSubscribe(Task.Subscription<? extends T> subscription)
```
    Description copied from interface: Task.Subscriber
    
    Invoked prior to the Task.Subscriber methods Task.Subscriber.onComplete(), Task.Subscriber.onError(Throwable) and Task.Subscriber.onNext(Object) being invoked for a Task.Subscription to a Task.Coordinator.
    
    Specified by:
    
    onSubscribe in interface Task.Subscriber<T>
    
    Parameters:
    
    subscription - the Task.Subscription
  - isError
```
public boolean isError()
```
    Determines if the RecordingSubscriber was published an error by a Task.Coordinator.
    
    Returns:
    
    true if onError(Throwable) was invoked false otherwise
  - isCompleted
```
public boolean isCompleted()
```
    Determines if the RecordingSubscriber was completed by a Task.Coordinator.
    
    Returns:
    
    true if onComplete() was invoked, false otherwise
  - isSubscribed
```
public boolean isSubscribed()
```
    Determines if the RecordingSubscriber has been subscribed to a Task.Coordinator.
    
    Returns:
    
    true if the RecordingSubscriber has been subscribed, false otherwise
  - received
```
public boolean received(T item)
```
    Determines if the specified item was received.
    
    Parameters:
    
    item - the item
    
    Returns:
    
    true if the item has been received, false otherwise
  - getFirst
```
public T getFirst()
```
    Returns the first item that was received the by the Task.Subscriber.
    
    Returns:
    
    the first item or null if no items have been received
  - getLast
```
public T getLast()
```
    Returns the last item that was received the by the Task.Subscriber.
    
    Returns:
    
    the last item or null if no items have been received
  - size
```
public int size()
```
    Determines the number of items the RecordingSubscriber has received.
    
    Returns:
    
    the number of items
  - getThrowable
```
public Throwable getThrowable()
```
    Returns the Throwable that completed the Task or null if the Task is still active or was not completed with an exception.
    
    Returns:
    
    the Throwable that completed the Task or null

Class RecordingSubscriber<T>

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

f_fUsed

f_fCompleted

f_fErrored

f_throwable

f_listItems

f_subscription

Constructor Detail

RecordingSubscriber

Method Detail

onComplete

onError

onNext

onSubscribe

isError

isCompleted

isSubscribed

received

getFirst

getLast

size

getThrowable