Album.java

package com.phonoforce.tramory.entities;


import com.phonoforce.tramory.annotations.EntitySet;

import javax.persistence.*;
import javax.xml.bind.annotation.*;
import java.util.HashSet;
import java.util.Set;

import static javax.persistence.GenerationType.IDENTITY;

@Entity
@Table(name = "Album")
@XmlRootElement(name = "album")
@XmlAccessorType(XmlAccessType.FIELD)
public class Album implements IEntity {
    @XmlElement(required = true)
    private int albumId;

    @XmlElement(required = true)
    private String title;

    @XmlElement(required = true)
    private int labelId;

    @XmlElement(required = true)
    private int year; // TODO: Replace by line below (change in ERM!!)
    // private Date published;

    @XmlElementWrapper(name = "artists")
    @XmlElement(name = "artist", required = true)
    private Set<Artist> artists;

    public Album() {
        this.artists = new HashSet<>();
    }

    @Id
    @GeneratedValue(strategy = IDENTITY)
    @Column(name = "album_id", unique = true, nullable = false)
    public int getId() {
        return albumId;
    }

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

    @Column(name = "title", nullable = false)
    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    @Column(name = "label_id", nullable = true)
    public int getLabelId() {
        return labelId;
    }

    public void setLabelId(int labelId) {
        this.labelId = labelId;
    }

    @Column(name = "release_year", nullable = true)
    public int getYear() {
        return year;
    }

    public void setYear(int year) {
        this.year = year;
    }

    @ManyToMany(
            fetch = FetchType.EAGER,
            cascade = CascadeType.ALL
    )
    @JoinTable(
            name = "AlbumArtist",
            joinColumns = {
                    @JoinColumn(
                            name = "album_id",
                            nullable = false,
                            updatable = false
                    )},
            inverseJoinColumns = {
                    @JoinColumn(
                            name = "artist_id",
                            nullable = false,
                            updatable = false
                    )}
    )
    @EntitySet
    public Set<Artist> getArtists() {
        return this.artists;
    }

    public void setArtists(Set<Artist> artists) {
        this.artists = artists;
    }

    @Override
    public String toString() {
        return "Album{" +
                "albumId=" + albumId +
                ", title='" + title + '\'' +
                ", labelId=" + labelId +
                ", year=" + year +
                '}';
    }
}