HashPartitionIterator (Flink : 2.0-SNAPSHOT API)

java.lang.Object
- org.apache.flink.runtime.iterative.io.HashPartitionIterator<BT,PT>

Type Parameters:

BT -

All Implemented Interfaces:

MutableObjectIterator<BT>
```
public class HashPartitionIterator<BT,PT>
extends Object
implements MutableObjectIterator<BT>
```
Iterator over the build side entries of a HashPartition.

Constructor Summary

Constructors
Constructor Description

HashPartitionIterator(Iterator<HashPartition<BT,PT>> partitions, TypeSerializer<BT> serializer)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`BT`	`next()`	Gets the next element from the collection.
`BT`	`next(BT 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
  - HashPartitionIterator
```
public HashPartitionIterator(Iterator<HashPartition<BT,PT>> partitions,
                             TypeSerializer<BT> serializer)
```
- Method Detail
  - next
```
public BT next(BT 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<BT>
    
    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 BT 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<BT>
    
    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