Java tutorial
/* * Copyright (C) 2015 muhamadto * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.coffeebeans.persistence.domain.model.base; import lombok.Data; import org.springframework.data.annotation.CreatedDate; import org.springframework.data.annotation.LastModifiedDate; import org.springframework.data.jpa.domain.AbstractPersistable; import org.springframework.util.Assert; import javax.persistence.*; import java.util.Date; import java.util.UUID; /** * Created by muhamadto on 12/07/2015. */ @MappedSuperclass @Data public class DomainObject extends AbstractPersistable<Long> { @Version protected int version; @Column(length = 36, unique = true, nullable = false) protected String uuid; @CreatedDate protected Date insertDate; @LastModifiedDate protected Date lastModified; public DomainObject() { this(UUID.randomUUID()); } public DomainObject(UUID uuid) { Assert.notNull(uuid, "UUID is required"); this.uuid = uuid.toString(); this.insertDate = new Date(); } }