org.tron.common.utils

Class FastByteComparisons

java.lang.Object

org.tron.common.utils.FastByteComparisons

public abstract class FastByteComparisons
extends Object

Utility code to do optimized byte-array comparison. This is borrowed and slightly modified from Guava's UnsignedBytes class to be able to compare arrays that start at non-zero offsets.

Constructor Summary

Constructors

Constructor and Description
FastByteComparisons()

Method Summary

Modifier and Type	Method and Description
static int	compareTo(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) Lexicographically compare two byte arrays.
static boolean	isEqual(byte[] b1, byte[] b2)

Methods inherited from class java.lang.Object

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

Constructor Detail

FastByteComparisons

public FastByteComparisons()

Method Detail

isEqual

public static boolean isEqual(byte[] b1,
                              byte[] b2)

compareTo

public static int compareTo(byte[] b1,
                            int s1,
                            int l1,
                            byte[] b2,
                            int s2,
                            int l2)

Lexicographically compare two byte arrays.

Parameters:

b1 - buffer1

s1 - offset1

l1 - length1

b2 - buffer2

s2 - offset2

l2 - length2

Returns:

int