User.java

package me.test.domain;

import java.util.Date;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.PrePersist;
import javax.persistence.PreUpdate;
import javax.persistence.Version;

@Entity
public class User {

    @Id
    @GeneratedValue
    private Long id;
    private String name;

    @Version
    private Date version;
    private Date created;
    private Date updated;

    @PrePersist
    protected void onCreate() {
        updated = created = new Date();
    }

    @PreUpdate
    protected void onUpdate() {
        updated = new Date();
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Date getCreated() {
        return created;
    }

    public void setCreated(Date created) {
        this.created = created;
    }

    public Date getUpdated() {
        return updated;
    }

    public void setUpdated(Date updated) {
        this.updated = updated;
    }

    public Date getVersion() {
        return version;
    }

    public void setVersion(Date version) {
        this.version = version;
    }

    @Override
    public String toString() {
        return "User [id=" + id + ", name=" + name + ", version=" + version + ", created=" + created + ", updated="
                + updated + "]";
    }

}