Java Tutorial/JPA/Version

Versioning Entity

File: Department.java

   <source lang="java">

import java.util.ArrayList; import java.util.Collection; import javax.persistence.Entity; import javax.persistence.Id; import javax.persistence.OneToMany; @Entity public class Department {

   @Id 
   private int id;
   private String name;
   @OneToMany(mappedBy="department")
   private Collection<Employee> employees;
   public Department() {
       employees = new ArrayList<Employee>();
   }
   
   public int getId() {
       return id;
   }
   
   public void setId(int id) {
       this.id = id;
   }
   
   public String getName() {
       return name;
   }
   
   public void setName(String deptName) {
       this.name = deptName;
   }
   
   public void removeEmployee(Employee employee) {
       getEmployees().remove(employee);
   }
   
   public Collection<Employee> getEmployees() {
       return employees;
   }
   public String toString() {
       return "Department id: " + getId() + 
              ", name: " + getName();
   }

}</source>