org.iq80.leveldb.util

Class AbstractSeekingIterator<K,V>

java.lang.Object

org.iq80.leveldb.util.AbstractSeekingIterator<K,V>

All Implemented Interfaces:

com.google.common.collect.PeekingIterator<Map.Entry<K,V>>, Iterator<Map.Entry<K,V>>, SeekingIterator<K,V>

Direct Known Subclasses:

DbIterator, InternalTableIterator, Level0Iterator, LevelIterator, MergingIterator, SnapshotSeekingIterator, TableIterator

public abstract class AbstractSeekingIterator<K,V>
extends Object
implements SeekingIterator<K,V>

Constructor Summary

Constructors

Constructor and Description
AbstractSeekingIterator()

Method Summary

Modifier and Type	Method and Description
protected abstract Map.Entry<K,V>	getNextElement()
boolean	hasNext()
Map.Entry<K,V>	next()
Map.Entry<K,V>	peek()
void	remove()
void	seek(K targetKey) Repositions the iterator so the key of the next BlockElement returned greater than or equal to the specified targetKey.
protected abstract void	seekInternal(K targetKey)
void	seekToFirst() Repositions the iterator so the beginning of this block.
protected abstract void	seekToFirstInternal()

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

AbstractSeekingIterator

public AbstractSeekingIterator()

Method Detail

seekToFirst

public final void seekToFirst()

Description copied from interface: SeekingIterator

Repositions the iterator so the beginning of this block.

Specified by:

seekToFirst in interface SeekingIterator<K,V>

seek

public final void seek(K targetKey)

Description copied from interface: SeekingIterator

Repositions the iterator so the key of the next BlockElement returned greater than or equal to the specified targetKey.

Specified by:

seek in interface SeekingIterator<K,V>

hasNext

public final boolean hasNext()

Specified by:

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

next

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

Specified by:

next in interface com.google.common.collect.PeekingIterator<Map.Entry<K,V>>

Specified by:

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

peek

public final Map.Entry<K,V> peek()

Specified by:

peek in interface com.google.common.collect.PeekingIterator<Map.Entry<K,V>>

remove

public final void remove()

Specified by:

remove in interface com.google.common.collect.PeekingIterator<Map.Entry<K,V>>

Specified by:

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

seekToFirstInternal

protected abstract void seekToFirstInternal()

seekInternal

protected abstract void seekInternal(K targetKey)

getNextElement

protected abstract Map.Entry<K,V> getNextElement()