org.apache.flink.table.runtime.dataview

Class NullAwareMapIterator<K,V>

java.lang.Object

org.apache.flink.table.runtime.dataview.NullAwareMapIterator<K,V>

All Implemented Interfaces:

Iterator<Map.Entry<K,V>>

public class NullAwareMapIterator<K,V>
extends Object
implements Iterator<Map.Entry<K,V>>

An Iterator implementation that iterate on a map iterator and a null entry.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	NullAwareMapIterator.NullMapEntry<K,V> A Map Entry that the entry key is always null.

Constructor Summary

Constructors

Constructor and Description
NullAwareMapIterator(Iterator<Map.Entry<K,V>> mapIterator, NullAwareMapIterator.NullMapEntry<K,V> nullMapEntry)

Method Summary

Modifier and Type	Method and Description
boolean	hasNext()
Map.Entry<K,V>	next()
void	remove()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Detail

NullAwareMapIterator

public NullAwareMapIterator(Iterator<Map.Entry<K,V>> mapIterator,
                            NullAwareMapIterator.NullMapEntry<K,V> nullMapEntry)

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<Map.Entry<K,V>>

next

public Map.Entry<K,V> next()

Specified by:

next in interface Iterator<Map.Entry<K,V>>

remove

public void remove()

Specified by:

remove in interface Iterator<Map.Entry<K,V>>