org.fest.util

Class Preconditions

java.lang.Object

org.fest.util.Preconditions

public final class Preconditions
extends java.lang.Object

Verifies correct argument values and state. Borrowed from Guava.

Author:

alruiz@google.com (Alex Ruiz)

Method Summary

Methods

Modifier and Type	Method and Description
static <T> T	checkNotNull(T reference) Verifies that the given object reference is not null.
static java.lang.String	checkNotNullOrEmpty(java.lang.String s) Verifies that the given String is not null or empty.

Methods inherited from class java.lang.Object

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

Method Detail

checkNotNullOrEmpty

public static java.lang.String checkNotNullOrEmpty(java.lang.String s)

Verifies that the given String is not null or empty.

Parameters:

s - the given String.

Returns:

the validated String.

Throws:

java.lang.NullPointerException - if the given String is null.

java.lang.IllegalArgumentException - if the given String is empty.

checkNotNull

public static <T> T checkNotNull(T reference)

Verifies that the given object reference is not null.

Parameters:

reference - the given object reference.

Returns:

the non-null reference that was validated.

Throws:

java.lang.NullPointerException - if the given object reference is null.