samophis.lavalink.client.util

Class Asserter

java.lang.Object

samophis.lavalink.client.util.Asserter

public class Asserter
extends java.lang.Object

Asserts that an object has to be not-null or that a number has to be positive.

Used internally to test the above conditions to ensure some extent of safety.

Since:

0.3.3

Author:

SamOphis

Method Summary

Modifier and Type	Method and Description
static int	requireNotNegative(int number) Asserts that an integer must be positive (not-negative) and returns the provided integer if it is.
static long	requireNotNegative(long number) Asserts that a long must be positive (not-negative) and returns the provided long if it is.
static <T> T	requireNotNull(T object) Asserts that an object must be not-null and returns the provided object if it is.

Methods inherited from class java.lang.Object

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

Method Detail

requireNotNull

@Nonnull
public static <T> T requireNotNull(T object)

Asserts that an object must be not-null and returns the provided object if it is.

Type Parameters:

T - The type of the object.

Parameters:

object - An object to null-check.

Returns:

The provided object if it is NOT null.

Throws:

java.lang.NullPointerException - If the provided object was null.

requireNotNegative

@Nonnegative
public static int requireNotNegative(int number)

Asserts that an integer must be positive (not-negative) and returns the provided integer if it is.

Parameters:

number - The integer to check.

Returns:

The integer if it was positive.

Throws:

java.lang.IllegalArgumentException - If the provided number was negative.

requireNotNegative

@Nonnegative
public static long requireNotNegative(long number)

Asserts that a long must be positive (not-negative) and returns the provided long if it is.

Parameters:

number - The long to check.

Returns:

The long if it was positive.

Throws:

java.lang.IllegalArgumentException - If the provided number was negative.