CountingMutableObjectIterator (Flink : 2.0-SNAPSHOT API)

java.lang.Object
- org.apache.flink.runtime.operators.util.metrics.CountingMutableObjectIterator<IN>

All Implemented Interfaces:: MutableObjectIterator<IN>

public class CountingMutableObjectIterator<IN>
extends Object
implements MutableObjectIterator<IN>

Constructor Summary

Constructors
Constructor Description

CountingMutableObjectIterator(MutableObjectIterator<IN> iterator, Counter numRecordsIn)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`IN`	`next()`	Gets the next element from the collection.
`IN`	`next(IN reuse)`	Gets the next element from the collection.

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

- Constructor Detail
  - CountingMutableObjectIterator
```
public CountingMutableObjectIterator(MutableObjectIterator<IN> iterator,
                                     Counter numRecordsIn)
```
- Method Detail
  - next
```
public IN next(IN reuse)
        throws IOException
```
    Description copied from interface: MutableObjectIterator
    
    Gets the next element from the collection. The contents of that next element is put into the given reuse object, if the type is mutable.
    
    Specified by:
    
    next in interface MutableObjectIterator<IN>
    
    Parameters:
    
    reuse - The target object into which to place next element if E is mutable.
    
    Returns:
    
    The filled object or null if the iterator is exhausted.
    
    Throws:
    
    IOException - Thrown, if a problem occurred in the underlying I/O layer or in the serialization / deserialization logic
  - next
```
public IN next()
        throws IOException
```
    Description copied from interface: MutableObjectIterator
    
    Gets the next element from the collection. The iterator implementation must obtain a new instance.
    
    Specified by:
    
    next in interface MutableObjectIterator<IN>
    
    Returns:
    
    The object or null if the iterator is exhausted.
    
    Throws:
    
    IOException - Thrown, if a problem occurred in the underlying I/O layer or in the serialization / deserialization logic