Package org.apache.flink.runtime.operators.hash

Class CompactingHashTable.EntryIterator

java.lang.Object

org.apache.flink.runtime.operators.hash.CompactingHashTable.EntryIterator

All Implemented Interfaces:

MutableObjectIterator<T>

Enclosing class:

CompactingHashTable<T>

public class CompactingHashTable.EntryIterator
extends Object
implements MutableObjectIterator<T>

Iterator that traverses the whole hash table once

If entries are inserted during iteration they may be overlooked by the iterator

Method Summary

Modifier and Type	Method	Description
T	next()	Gets the next element from the collection.
T	next(T 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

Method Detail

next

public T next(T 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<T>

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 T 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<T>

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