org.apache.jackrabbit.oak.commons

Class LongUtils

java.lang.Object

org.apache.jackrabbit.oak.commons.LongUtils

public final class LongUtils
extends java.lang.Object

Method Summary

Modifier and Type	Method and Description
static long	calculateExpirationTime(long expiration) Calculate an expiration time based on new Date().getTime() and the specified expiration in number of milliseconds.
static long	safeAdd(long a, long b) Sums a and b and verifies that it doesn't overflow in signed long arithmetic, in which case Long.MAX_VALUE will be returned instead of the result.

Methods inherited from class java.lang.Object

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

Method Detail

safeAdd

public static long safeAdd(long a,
                           long b)

Sums a and b and verifies that it doesn't overflow in signed long arithmetic, in which case Long.MAX_VALUE will be returned instead of the result. Note: this method is a variant of com.google.common.math.LongMath#checkedAdd(long, long) that returns Long.MAX_VALUE instead of throwing ArithmeticException.

See Also:

com.google.common.math.LongMath#checkedAdd(long, long)

calculateExpirationTime

public static long calculateExpirationTime(long expiration)

Calculate an expiration time based on new Date().getTime() and the specified expiration in number of milliseconds.

Parameters:

expiration - The expiration in milliseconds.

Returns:

The expiration time.