DelegatingPeekingKeyValueIterator (kafka 2.6.1.100-eep-810 API)

java.lang.Object
- org.apache.kafka.streams.state.internals.DelegatingPeekingKeyValueIterator<K,V>

All Implemented Interfaces:

Closeable, AutoCloseable, Iterator<KeyValue<K,V>>, PeekingKeyValueIterator<K,V>, KeyValueIterator<K,V>
```
public class DelegatingPeekingKeyValueIterator<K,V>
extends Object
implements KeyValueIterator<K,V>, PeekingKeyValueIterator<K,V>
```
Optimized KeyValueIterator used when the same element could be peeked multiple times.

Constructor Summary

Constructors
Constructor Description

DelegatingPeekingKeyValueIterator(String storeName, KeyValueIterator<K,V> underlying)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`
`boolean`	`hasNext()`
`KeyValue<K,V>`	`next()`
`KeyValue<K,V>`	`peekNext()`
`K`	`peekNextKey()`	Peek at the next key without advancing the iterator

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, remove

- Constructor Detail
  - DelegatingPeekingKeyValueIterator
```
public DelegatingPeekingKeyValueIterator(String storeName,
                                         KeyValueIterator<K,V> underlying)
```
- Method Detail
  - peekNextKey
```
public K peekNextKey()
```
    Description copied from interface: KeyValueIterator
    
    Peek at the next key without advancing the iterator
    
    Specified by:
    
    peekNextKey in interface KeyValueIterator<K,V>
    
    Returns:
    
    the key of the next value that would be returned from the next call to next
  - close
```
public void close()
```
    Specified by:
    
    close in interface AutoCloseable
    
    Specified by:
    
    close in interface Closeable
    
    Specified by:
    
    close in interface KeyValueIterator<K,V>
  - hasNext
```
public boolean hasNext()
```
    Specified by:
    
    hasNext in interface Iterator<K>
  - next
```
public KeyValue<K,V> next()
```
    Specified by:
    
    next in interface Iterator<K>
  - peekNext
```
public KeyValue<K,V> peekNext()
```
    Specified by:
    
    peekNext in interface PeekingKeyValueIterator<K,V>