Package io.permazen.kv.mvstore

Class MVCursorIterator

java.lang.Object

com.google.common.collect.UnmodifiableIterator<T>

com.google.common.collect.AbstractIterator<KVPair>

io.permazen.kv.mvstore.MVCursorIterator

All Implemented Interfaces:

Iterator<KVPair>

public class MVCursorIterator
extends AbstractIterator<KVPair>

Converts a Cursor from an Iterator<byte[]> with inclusive upper bound into an Iterator<KVPair> with exclusive upper bound.

Constructor Summary

Constructors

Constructor	Description
MVCursorIterator(org.h2.mvstore.Cursor<byte[],byte[]> cursor, byte[] maxKey, boolean reverse)	Constructor.

Method Summary

Modifier and Type	Method	Description
protected KVPair	computeNext()
byte[]	getMaxKey()
boolean	isReverse()
String	toString()

Methods inherited from class com.google.common.collect.AbstractIterator

endOfData, hasNext, next, peek

Methods inherited from class com.google.common.collect.UnmodifiableIterator

remove

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Details

MVCursorIterator

public MVCursorIterator(org.h2.mvstore.Cursor<byte[],byte[]> cursor,
 byte[] maxKey,
 boolean reverse)

Constructor.

Parameters:

cursor - the underlying Cursor

maxKey - maximum key (exclusive), or null for no maximum

reverse - true if cursor iterates keys in descending order

Throws:

IllegalArgumentException - if cursor is null

Method Details

getMaxKey

public byte[] getMaxKey()

isReverse

public boolean isReverse()

computeNext

protected KVPair computeNext()

Specified by:

computeNext in class AbstractIterator<KVPair>

toString

public String toString()

Overrides:

toString in class Object