com.sleepycat.je.dbi

Class DupKeyData.PutNoOverwriteComparator

java.lang.Object

com.sleepycat.je.dbi.DupKeyData.PutNoOverwriteComparator

All Implemented Interfaces:

Comparator<byte[]>

Enclosing class:

DupKeyData

public static class DupKeyData.PutNoOverwriteComparator
extends Object
implements Comparator<byte[]>

Used to perform the putNoOverwrite operation. Only used to find the insertion position in the BIN, after the standard comparator is used to find the correct BIN for insertion. Because it compares part-one only, it prevents insertion of a duplicate for the main key given.

Constructor Summary

Constructors

Constructor and Description
PutNoOverwriteComparator(Comparator<byte[]> cmp)

Method Summary

Modifier and Type	Method and Description
int	compare(byte[] twoPartKey1, byte[] twoPartKey2)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

PutNoOverwriteComparator

public PutNoOverwriteComparator(Comparator<byte[]> cmp)

Method Detail

compare

public int compare(byte[] twoPartKey1,
                   byte[] twoPartKey2)

Specified by:

compare in interface Comparator<byte[]>