ValidationTest.java

/**
 *  Copyright 2017 Gunnar Morling (http://www.gunnarmorling.de/)
 *  and/or other contributors as indicated by the @authors tag. See the
 *  copyright.txt file in the distribution for a full listing of all
 *  contributors.
 *
 *  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.example;

import java.util.Set;

import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.constraints.NotNull;

/**
 * @author Gunnar Morling
 *
 */
public class ValidationTest {

	public static void main(String[] args) {
		Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
		Set<ConstraintViolation<Customer>> violations = validator.validate( new Customer() );

		System.out.println( violations );
	}

	public static class Customer {

		@NotNull
		private String name = null;
	}
}