1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242
|
package entity;
import java.io.Serializable;
import java.util.List;
import javax.persistence.*;
@Entity
public class Artist implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
private String firstName;
private String lastName;
@ManyToMany(cascade = CascadeType.PERSIST)
@JoinTable(name = "joint_art_cd", joinColumns = @JoinColumn(name = "art_fk"),
inverseJoinColumns = @JoinColumn(name = "cd_fk"))
private List<Cd> cd;
public Artist(String firstName, String lastName) {
this.firstName = firstName;
this.lastName = lastName;
}
public Artist() {
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public List<Cd> getCd() {
return cd;
}
public void setCd(List<Cd> cd) {
this.cd = cd;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
@Override
public int hashCode() {
int hash = 0;
hash += (id != null ? id.hashCode() : 0);
return hash;
}
@Override
public boolean equals(Object object) {
if (!(object instanceof Artist)) {
return false;
}
Artist other = (Artist) object;
if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
return false;
}
return true;
}
@Override
public String toString() {
return "entity.Artist[ id=" + id + " ]";
}
}
package entity;
import java.io.Serializable;
import java.util.List;
import javax.persistence.*;
@Entity
public class Cd implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
private String title;
private Float price;
private String description;
@ManyToMany(mappedBy = "cd", cascade = CascadeType.ALL)
private List<Artist> artists;
public Cd(String title, Float price, String description) {
this.title = title;
this.price = price;
this.description = description;
}
public Cd() {
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public Float getPrice() {
return price;
}
public void setPrice(Float price) {
this.price = price;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public List<Artist> getArtists() {
return artists;
}
public void setArtists(List<Artist> artists) {
this.artists = artists;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
@Override
public int hashCode() {
int hash = 0;
hash += (id != null ? id.hashCode() : 0);
return hash;
}
@Override
public boolean equals(Object object) {
if (!(object instanceof Cd)) {
return false;
}
Cd other = (Cd) object;
if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
return false;
}
return true;
}
@Override
public String toString() {
return "entity.Cd[ id=" + id + " ]";
}
}
package entity;
import entity.Book;
import java.util.*;
import javax.persistence.*;
public class Demo {
public static void main(String[] args) {
Artist a1 = new Artist("Abdelmalik", "Berrada");
Artist a2 = new Artist("Yassine", "Daoudi");
Artist a3 = new Artist("Jamel", "Debbouze");
Cd cd1 = new Cd("Burnout City", 22.2F, "cd Rock");
Cd cd2 = new Cd("Gun n Roses", 32.2F, "cd Hard Rock");
Cd cd3 = new Cd("Nirvana", 62.2F, "cd Metal");
ArrayList <Cd> lCd1 = new ArrayList<Cd>();
ArrayList <Artist> lArt1 = new ArrayList<Artist>();
lCd1.add(cd1);
lCd1.add(cd2);
lArt1.add(a2);
lArt1.add(a3);
a1.setCd(lCd1);
cd3.setArtists(lArt1);
//persist(a1);
persist(cd3);
}
private static void persist(Object object) {
EntityManagerFactory emf = javax.persistence.Persistence.createEntityManagerFactory("simple-jpaPU");
EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
try{
em.persist(object);
em.getTransaction().commit();
}
catch(Exception e){
e.printStackTrace();
em.getTransaction().rollback();
}
finally{
em.close();
}
}
} |
Partager