JPA - @EntityListeners Examples

import javax.persistence.Entity;
import javax.persistence.EntityListeners;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

@Entity
@EntityListeners(MyEntityListener.class)
public class MyEntity {
    @Id
    @GeneratedValue
    private int id;
    private String msg;

    public MyEntity() { }

    public MyEntity(String msg) {
        this.msg = msg;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public int getId() {
        return id;
    }

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

    @Override
    public String toString() {
        return "MyEntity{" +
                "id=" + id +
                ", msg='" + msg + '\'' +
                '}';
    }
}

import javax.persistence.*;
import java.sql.Timestamp;

@Entity
@EntityListeners(AuditableListener.class)
public class Article implements Auditable {
    @Id
    @GeneratedValue
    private int id;
    private String content;
    @ManyToOne(cascade = CascadeType.ALL)
    private Publisher publisher;
    private Timestamp dateCreated;
    private Timestamp lastUpdated;

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }

    public Publisher getPublisher() {
        return publisher;
    }

    public void setPublisher(Publisher publisher) {
        this.publisher = publisher;
    }

    @Override
    public Timestamp getDateCreated() {
        return dateCreated;
    }

    @Override
    public void setDateCreated(Timestamp dateCreated) {
        this.dateCreated = dateCreated;
    }

    @Override
    public Timestamp getLastUpdated() {
        return lastUpdated;
    }

    @Override
    public void setLastUpdated(Timestamp lastUpdated) {
        this.lastUpdated = lastUpdated;
    }


    @Override
    public String toString() {
        return "Article{" +
                "id=" + id +
                ", content='" + content + '\'' +
                ", dateCreated=" + dateCreated +
                ", lastUpdated=" + lastUpdated +
                '}';
    }
}

import javax.persistence.Entity;
import javax.persistence.EntityListeners;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import java.sql.Timestamp;

@Entity
@EntityListeners(AuditableListener.class)
public class Publisher implements Auditable {
    @Id
    @GeneratedValue
    private int id;
    private String name;
    private Timestamp dateCreated;
    private Timestamp lastUpdated;

    public Publisher() {
    }

    public Publisher(String name) {
        this.name = name;
    }

    public int getId() {
        return id;
    }

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

    public String getName() {
        return name;
    }

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

    @Override
    public Timestamp getDateCreated() {
        return dateCreated;
    }

    @Override
    public void setDateCreated(Timestamp dateCreated) {
        this.dateCreated = dateCreated;
    }

    @Override
    public Timestamp getLastUpdated() {
        return lastUpdated;
    }

    @Override
    public void setLastUpdated(Timestamp lastUpdated) {
        this.lastUpdated = lastUpdated;
    }

    @Override
    public String toString() {
        return "Publisher{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", dateCreated=" + dateCreated +
                ", lastUpdated=" + lastUpdated +
                '}';
    }
}