TaskCollectors.CountCollector (Java API Reference for Oracle® Coherence Community Edition)

java.lang.Object
- com.oracle.coherence.concurrent.executor.AbstractCollector<T,Integer>
- - com.oracle.coherence.concurrent.executor.TaskCollectors.CountCollector<T>

Type Parameters:

T - the results type.

All Implemented Interfaces:

Task.Collector<T,List<T>,Integer>, com.tangosol.io.ExternalizableLite, com.tangosol.io.pof.PortableObject, Serializable

Enclosing class:

TaskCollectors
```
public static class TaskCollectors.CountCollector<T>
extends AbstractCollector<T,Integer>
```
A Task.Collector that counts the number of results are present.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

CountCollector()
Constructs a TaskCollectors.CountCollector (required for serialization).

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Function<List<T>,Integer>`	`finisher()`	Perform the final transformation from the intermediate accumulation type A to the final result type R.
`void`	`readExternal(com.tangosol.io.pof.PofReader in)`
`void`	`readExternal(DataInput in)`
`void`	`writeExternal(com.tangosol.io.pof.PofWriter out)`
`void`	`writeExternal(DataOutput out)`

Methods inherited from class com.oracle.coherence.concurrent.executor.AbstractCollector
accumulator, finishable, supplier

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

- Constructor Detail
  - CountCollector
```
public CountCollector()
```
    Constructs a TaskCollectors.CountCollector (required for serialization).
- Method Detail
  - finisher
```
public Function<List<T>,Integer> finisher()
```
    Description copied from interface: Task.Collector
    
    Perform the final transformation from the intermediate accumulation type A to the final result type R.
    
    Returns:
    
    a function which transforms the intermediate result to the final result
  - readExternal
```
public void readExternal(DataInput in)
                  throws IOException
```
    Throws:
    
    IOException
  - writeExternal
```
public void writeExternal(DataOutput out)
                   throws IOException
```
    Throws:
    
    IOException
  - readExternal
```
public void readExternal(com.tangosol.io.pof.PofReader in)
                  throws IOException
```
    Throws:
    
    IOException
  - writeExternal
```
public void writeExternal(com.tangosol.io.pof.PofWriter out)
                   throws IOException
```
    Throws:
    
    IOException