Java tutorial
/* * Copyright 2012 the original author or authors. * * 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.tpg.tmjug.springdata.demo.jpa.entities; import org.springframework.util.Assert; import javax.persistence.Entity; @Entity public class Address extends AbstractEntity { private String street; private String city; private String country; public Address(Long id, String street, String city, String country) { super(id); Assert.hasText(street, "Street must not be null or empty!"); Assert.hasText(city, "City must not be null or empty!"); Assert.hasText(country, "Country must not be null or empty!"); this.street = street; this.city = city; this.country = country; } public Address(Long id) { super(id); } protected Address() { } public String getStreet() { return street; } public String getCity() { return city; } public String getCountry() { return country; } }