diff --git a/src/main/java/koz01/java2/lab10/Clas.java b/src/main/java/koz01/java2/lab10/Clas.java
index 20993fffd0a25a8e3e9384d2afbb6919aca581d9..edf245d4b1c4968947c1887ed5fce6c666f0a3a8 100644
--- a/src/main/java/koz01/java2/lab10/Clas.java
+++ b/src/main/java/koz01/java2/lab10/Clas.java
@@ -1,7 +1,5 @@
package koz01.java2.lab10;
-import java.util.Set;
-
import javax.persistence.Entity;
import lombok.AllArgsConstructor;
@@ -17,8 +15,9 @@ public class Clas extends BaseEntity {
@Getter
@Setter
private String cname;
-
- @Getter
- @Setter
- private Set<Clas> clas;
+ /*
+ @Getter
+ @Setter
+ private Set<Clas> clas;
+ */
}
diff --git a/src/main/java/koz01/java2/lab10/Department.java b/src/main/java/koz01/java2/lab10/Department.java
index 132b6ed07fdabd04582320a0b67314bc1b32ebee..7b21b98e2af707b3a6f53c125534688c6d22351c 100644
--- a/src/main/java/koz01/java2/lab10/Department.java
+++ b/src/main/java/koz01/java2/lab10/Department.java
@@ -1,8 +1,10 @@
+
package koz01.java2.lab10;
import java.util.List;
import javax.persistence.Entity;
+import javax.persistence.OneToMany;
import lombok.AllArgsConstructor;
import lombok.Getter;
@@ -18,7 +20,9 @@ public class Department extends BaseEntity {
@Setter
private String name;
+ @OneToMany(targetEntity = Employee.class, mappedBy = "departmentRereference")
@Getter
@Setter
private List<Employee> employee;
+
}
diff --git a/src/main/java/koz01/java2/lab10/Employee.java b/src/main/java/koz01/java2/lab10/Employee.java
index 259c167f456776c25f75a0e9ff406b52bc06c37c..720e1801e8290ecb5961447a765547d71caa6d33 100644
--- a/src/main/java/koz01/java2/lab10/Employee.java
+++ b/src/main/java/koz01/java2/lab10/Employee.java
@@ -1,6 +1,9 @@
+
package koz01.java2.lab10;
import javax.persistence.Entity;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
import lombok.AllArgsConstructor;
import lombok.Getter;
@@ -28,8 +31,11 @@ public class Employee extends BaseEntity {
@Setter
private String deg;
+
+ @ManyToOne
+ @JoinColumn(name = "department_id")
@Setter
@Getter
- private Department department;
+ private Department departmentRereference;
}
diff --git a/src/main/java/koz01/java2/lab10/NonTeachingStaff.java b/src/main/java/koz01/java2/lab10/NonTeachingStaff.java
index 59b164a093a8b8cfb44417e01b5cc233a4083d68..71f5e2f33d9a6d6dfc1512c9717ee0b19de31d2d 100644
--- a/src/main/java/koz01/java2/lab10/NonTeachingStaff.java
+++ b/src/main/java/koz01/java2/lab10/NonTeachingStaff.java
@@ -1,5 +1,6 @@
package koz01.java2.lab10;
+import javax.persistence.DiscriminatorValue;
import javax.persistence.Entity;
import lombok.Getter;
@@ -7,6 +8,7 @@ import lombok.NoArgsConstructor;
import lombok.Setter;
@Entity
+@DiscriminatorValue(value = "nts")
@NoArgsConstructor
public class NonTeachingStaff extends Staff {
diff --git a/src/main/java/koz01/java2/lab10/Staff.java b/src/main/java/koz01/java2/lab10/Staff.java
index 6f09a62943a09c3d44b4b9e1bf0c4f0e8a270c52..fc78ace5a342c5884c2e3f58f1fd4f5cfcea9c02 100644
--- a/src/main/java/koz01/java2/lab10/Staff.java
+++ b/src/main/java/koz01/java2/lab10/Staff.java
@@ -1,16 +1,18 @@
package koz01.java2.lab10;
import javax.persistence.Entity;
+import javax.persistence.Inheritance;
+import javax.persistence.InheritanceType;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
@Entity
+@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
@NoArgsConstructor
public class Staff extends BaseEntity {
-
@Getter
@Setter
private String sname;
diff --git a/src/main/java/koz01/java2/lab10/Teacher.java b/src/main/java/koz01/java2/lab10/Teacher.java
index ee1c35713f94d95bcf0dc5255461d05ca91e852e..08302449e306a3cf58dbef5c708643244bc1a9a2 100644
--- a/src/main/java/koz01/java2/lab10/Teacher.java
+++ b/src/main/java/koz01/java2/lab10/Teacher.java
@@ -1,8 +1,6 @@
package koz01.java2.lab10;
-import java.util.Set;
-
import javax.persistence.Entity;
import lombok.AllArgsConstructor;
@@ -22,8 +20,9 @@ public class Teacher extends BaseEntity {
@Getter
@Setter
private String subject;
-
- @Getter
- @Setter
- private Set<Clas> clasSet;
+ /*
+ @Getter
+ @Setter
+ private Set<Clas> clasSet;
+ */
}
diff --git a/src/main/java/koz01/java2/lab10/TeachingStaff.java b/src/main/java/koz01/java2/lab10/TeachingStaff.java
index 7900ce4ab8eda147d5aa3fba18f7223524422053..04f10e3bf2bc52b59dcc4ac560b45a3764d53323 100644
--- a/src/main/java/koz01/java2/lab10/TeachingStaff.java
+++ b/src/main/java/koz01/java2/lab10/TeachingStaff.java
@@ -1,12 +1,15 @@
package koz01.java2.lab10;
+import javax.persistence.DiscriminatorValue;
import javax.persistence.Entity;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
+
@Entity
+@DiscriminatorValue(value = "ts")
@NoArgsConstructor
public class TeachingStaff extends Staff {
diff --git a/src/test/java/koz01/java2/lab10/DemoJPA.java b/src/test/java/koz01/java2/lab10/DemoJPA.java
index d859bdd310779f426d8c175e05ab8154fe6107f9..5439ed21642ef7d5151207ea55a5e0b58cd175cb 100644
--- a/src/test/java/koz01/java2/lab10/DemoJPA.java
+++ b/src/test/java/koz01/java2/lab10/DemoJPA.java
@@ -2,9 +2,7 @@
package koz01.java2.lab10;
import java.util.ArrayList;
-import java.util.HashSet;
import java.util.List;
-import java.util.Set;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
@@ -21,6 +19,7 @@ public class DemoJPA {
EntityManager entitymanager = emfactory.createEntityManager();
entitymanager.getTransaction().begin();
+
// Teaching staff entity
TeachingStaff ts1 = new TeachingStaff("Gopal", "MSc MEd", "Maths");
TeachingStaff ts2 = new TeachingStaff("Manisha", "BSc BEd", "English");
@@ -40,152 +39,155 @@ public class DemoJPA {
emfactory.close();
}
- @Test
- public void demostrateManyToOne() {
- EntityManagerFactory emfactory = Persistence.createEntityManagerFactory(
- "lab10");
- EntityManager entitymanager = emfactory.createEntityManager();
- entitymanager.getTransaction().begin();
-
- // Create Department Entity
- Department department = new Department();
- department.setName("Development");
-
- // Store Department
- entitymanager.persist(department);
-
- // Create Employee1 Entity
- Employee employee1 = new Employee();
- employee1.setEname("Satish");
- employee1.setSalary(45000.0);
- employee1.setDeg("Technical Writer");
- employee1.setDepartment(department);
-
- // Create Employee2 Entity
- Employee employee2 = new Employee();
- employee2.setEname("Krishna");
- employee2.setSalary(45000.0);
- employee2.setDeg("Technical Writer");
- employee2.setDepartment(department);
-
- // Create Employee3 Entity
- Employee employee3 = new Employee();
- employee3.setEname("Masthanvali");
- employee3.setSalary(50000.0);
- employee3.setDeg("Technical Writer");
- employee3.setDepartment(department);
-
- // Store Employees
- entitymanager.persist(employee1);
- entitymanager.persist(employee2);
- entitymanager.persist(employee3);
-
- entitymanager.getTransaction().commit();
- entitymanager.close();
- emfactory.close();
- }
-
- @Test
- public void demostrateOneToMany() {
- EntityManagerFactory emfactory = Persistence.createEntityManagerFactory(
- "lab10");
- EntityManager entitymanager = emfactory.createEntityManager();
- entitymanager.getTransaction().begin();
-
- // Create Employee1 Entity
- Employee employee1 = new Employee();
- employee1.setEname("Satish");
- employee1.setSalary(45000.0);
- employee1.setDeg("Technical Writer");
-
- // Create Employee2 Entity
- Employee employee2 = new Employee();
- employee2.setEname("Krishna");
- employee2.setSalary(45000.0);
- employee2.setDeg("Technical Writer");
-
- // Create Employee3 Entity
- Employee employee3 = new Employee();
- employee3.setEname("Masthanvali");
- employee3.setSalary(50000.0);
- employee3.setDeg("Technical Writer");
-
- // Store Employee
- entitymanager.persist(employee1);
- entitymanager.persist(employee2);
- entitymanager.persist(employee3);
-
- // Create Employeelist
- List<Employee> emplist = new ArrayList<>();
- emplist.add(employee1);
- emplist.add(employee2);
- emplist.add(employee3);
-
- // Create Department Entity
- Department department = new Department();
- department.setName("Development");
- department.setEmployee(emplist);
-
- // Store Department
- entitymanager.persist(department);
-
- entitymanager.getTransaction().commit();
- entitymanager.close();
- emfactory.close();
- }
-
- @Test
- public void demostrateManyToMany() {
-
- EntityManagerFactory emfactory = Persistence.createEntityManagerFactory(
- "lab10");
- EntityManager entitymanager = emfactory.createEntityManager();
- entitymanager.getTransaction().begin();
-
- // Create Clas Entity
- Clas clas1 = new Clas("1st", null);
- Clas clas2 = new Clas("2nd", null);
- Clas clas3 = new Clas("3rd", null);
-
- // Store Clas
- entitymanager.persist(clas1);
- entitymanager.persist(clas2);
- entitymanager.persist(clas3);
-
- // Create Clas Set1
- Set<Clas> classSet1 = new HashSet<>();
- classSet1.add(clas1);
- classSet1.add(clas2);
- classSet1.add(clas3);
-
- // Create Clas Set2
- Set<Clas> classSet2 = new HashSet<>();
- classSet2.add(clas3);
- classSet2.add(clas1);
- classSet2.add(clas2);
-
- // Create Clas Set3
- Set<Clas> classSet3 = new HashSet<>();
- classSet3.add(clas2);
- classSet3.add(clas3);
- classSet3.add(clas1);
-
- // Create Teacher Entity
- Teacher teacher1 = new Teacher("Satish", "Java", classSet1);
- Teacher teacher2 = new Teacher("Krishna", "Adv Java", classSet2);
- Teacher teacher3 = new Teacher("Masthanvali", "DB2", classSet3);
-
- // Store Teacher
- entitymanager.persist(teacher1);
- entitymanager.persist(teacher2);
- entitymanager.persist(teacher3);
-
- entitymanager.getTransaction().commit();
- entitymanager.close();
- emfactory.close();
-
- }
-
+ /*
+ @Test
+ public void demostrateManyToOne() {
+ EntityManagerFactory emfactory = Persistence.createEntityManagerFactory(
+ "lab10");
+ EntityManager entitymanager = emfactory.createEntityManager();
+ entitymanager.getTransaction().begin();
+
+ // Create Department Entity
+ Department department = new Department();
+ department.setName("Development");
+
+ // Store Department
+ entitymanager.persist(department);
+
+ // Create Employee1 Entity
+ Employee employee1 = new Employee();
+ employee1.setEname("Satish");
+ employee1.setSalary(45000.0);
+ employee1.setDeg("Technical Writer");
+ employee1.setDepartment(department);
+
+ // Create Employee2 Entity
+ Employee employee2 = new Employee();
+ employee2.setEname("Krishna");
+ employee2.setSalary(45000.0);
+ employee2.setDeg("Technical Writer");
+ employee2.setDepartment(department);
+
+ // Create Employee3 Entity
+ Employee employee3 = new Employee();
+ employee3.setEname("Masthanvali");
+ employee3.setSalary(50000.0);
+ employee3.setDeg("Technical Writer");
+ employee3.setDepartment(department);
+
+ // Store Employees
+ entitymanager.persist(employee1);
+ entitymanager.persist(employee2);
+ entitymanager.persist(employee3);
+
+ entitymanager.getTransaction().commit();
+ entitymanager.close();
+ emfactory.close();
+ }
+
+ */
+ @Test
+ public void demostrateOneToMany() {
+ EntityManagerFactory emfactory = Persistence.createEntityManagerFactory(
+ "lab10");
+ EntityManager entitymanager = emfactory.createEntityManager();
+ entitymanager.getTransaction().begin();
+
+ // Create Employee1 Entity
+ Employee employee1 = new Employee();
+ employee1.setEname("Satish");
+ employee1.setSalary(45000.0);
+ employee1.setDeg("Technical Writer");
+
+ // Create Employee2 Entity
+ Employee employee2 = new Employee();
+ employee2.setEname("Krishna");
+ employee2.setSalary(45000.0);
+ employee2.setDeg("Technical Writer");
+
+ // Create Employee3 Entity
+ Employee employee3 = new Employee();
+ employee3.setEname("Masthanvali");
+ employee3.setSalary(50000.0);
+ employee3.setDeg("Technical Writer");
+
+ // Store Employee
+ entitymanager.persist(employee1);
+ entitymanager.persist(employee2);
+ entitymanager.persist(employee3);
+
+ // Create Employeelist
+ List<Employee> emplist = new ArrayList<>();
+ emplist.add(employee1);
+ emplist.add(employee2);
+ emplist.add(employee3);
+
+ // Create Department Entity
+ Department department = new Department();
+ department.setName("Development");
+ department.setEmployee(emplist);
+
+ // Store Department
+ entitymanager.persist(department);
+
+ entitymanager.getTransaction().commit();
+ entitymanager.close();
+ emfactory.close();
+ }
+
+ /*
+ @Test
+ public void demostrateManyToMany() {
+
+ EntityManagerFactory emfactory = Persistence.createEntityManagerFactory(
+ "lab10");
+ EntityManager entitymanager = emfactory.createEntityManager();
+ entitymanager.getTransaction().begin();
+
+ // Create Clas Entity
+ Clas clas1 = new Clas("1st", null);
+ Clas clas2 = new Clas("2nd", null);
+ Clas clas3 = new Clas("3rd", null);
+
+ // Store Clas
+ entitymanager.persist(clas1);
+ entitymanager.persist(clas2);
+ entitymanager.persist(clas3);
+
+ // Create Clas Set1
+ Set<Clas> classSet1 = new HashSet<>();
+ classSet1.add(clas1);
+ classSet1.add(clas2);
+ classSet1.add(clas3);
+
+ // Create Clas Set2
+ Set<Clas> classSet2 = new HashSet<>();
+ classSet2.add(clas3);
+ classSet2.add(clas1);
+ classSet2.add(clas2);
+
+ // Create Clas Set3
+ Set<Clas> classSet3 = new HashSet<>();
+ classSet3.add(clas2);
+ classSet3.add(clas3);
+ classSet3.add(clas1);
+
+ // Create Teacher Entity
+ Teacher teacher1 = new Teacher("Satish", "Java", classSet1);
+ Teacher teacher2 = new Teacher("Krishna", "Adv Java", classSet2);
+ Teacher teacher3 = new Teacher("Masthanvali", "DB2", classSet3);
+
+ // Store Teacher
+ entitymanager.persist(teacher1);
+ entitymanager.persist(teacher2);
+ entitymanager.persist(teacher3);
+
+ entitymanager.getTransaction().commit();
+ entitymanager.close();
+ emfactory.close();
+
+ }
+ */
public void demonstrateCriterie() {
}