Java Tutorial/JPA/Basic

Mark Field As Basic

File: Student.java

   <source lang="java">

import java.util.Date; import javax.persistence.Basic; import javax.persistence.Entity; import javax.persistence.Id; @Entity public class Student {

 @Id
 private long id = System.currentTimeMillis();
 @Basic
 private String name;
 @Basic
 private Date dateOfBirth = new Date();
 public Date getDateOfBirth() {
   return dateOfBirth;
 }
 public void setDateOfBirth(Date dateOfBirth) {
   this.dateOfBirth = dateOfBirth;
 }
 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;
 }
 
 

}</source>

Mark Field As Lazy Load

File: Student.java

   <source lang="java">

import javax.persistence.Basic; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.FetchType; import javax.persistence.Id; import javax.persistence.Lob; @Entity public class Student {

 @Id
 private int id = 0;
 private String name;
 @Basic(fetch = FetchType.LAZY)
 @Lob
 private byte[] picture;
 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;
 }
 public byte[] getPicture() {
   return picture;
 }
 public void setPicture(byte[] picture) {
   this.picture = picture;
 }
 public String toString() {
   return "\n\nID:" + id + "\nName:" + name + "\n\n";
 }

}</source>