com.usefulmilk.support.Validate Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of commons-support Show documentation

A common support library.

The newest version!

/*
 * Copyright 2016 UsefulMilk
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.usefulmilk.support;

/**
 * It is a support class to validate data.
 */
public final class Validate {
    private Validate(){}

    /**
     * This method should be used if it is desired throw {@link NullPointerException} when
     * an argument is null.
     * @param t The argument to be checked.
     * @param  The generic argument will define the return type.
     * @return Return the same argument if it is not null.
     */
    public static  T nonNullArgument(T t){
        if(t == null){
            throw new NullPointerException("Argument cannot be null.");
        }

        return t;
    }
}