GroupedActionListener (elasticsearch-extend 3.2 API)

java.lang.Object
- org.elasticsearch.action.support.GroupedActionListener<T>

All Implemented Interfaces:

ActionListener<T>
```
public final class GroupedActionListener<T>
extends Object
implements ActionListener<T>
```
An action listener that delegates its results to another listener once it has received N results (either successes or failures). This allows synchronous tasks to be forked off in a loop with the same listener and respond to a higher level listener once all tasks responded.

Constructor Summary

Constructors
Constructor Description

GroupedActionListener(ActionListener<Collection<T>> delegate, int groupSize)
Creates a new listener

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`onFailure(Exception e)`	A failure caused by an exception at some phase of the task.
`void`	`onResponse(T element)`	Handle action response.

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

- Constructor Detail
  - GroupedActionListener
```
public GroupedActionListener(ActionListener<Collection<T>> delegate,
                             int groupSize)
```
    Creates a new listener
    
    Parameters:
    
    delegate - the delegate listener
    
    groupSize - the group size
- Method Detail
  - onResponse
```
public void onResponse(T element)
```
    Description copied from interface: ActionListener
    
    Handle action response. This response may constitute a failure or a success but it is up to the listener to make that decision.
    
    Specified by:
    
    onResponse in interface ActionListener<T>
  - onFailure
```
public void onFailure(Exception e)
```
    Description copied from interface: ActionListener
    
    A failure caused by an exception at some phase of the task.
    
    Specified by:
    
    onFailure in interface ActionListener<T>