From ae62ff10e1a487bddc9938f631e5ea09f1d4e922 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20Ko=C5=BEusznik?= <jan@kozusznik.cz>
Date: Sun, 11 Apr 2021 22:44:16 +0200
Subject: [PATCH] Add tasks
---
pom.xml | 9 ++
.../java/koz01/java2/lab10/BaseEntity.java | 21 +++
src/main/java/koz01/java2/lab10/Clas.java | 24 +++
.../java/koz01/java2/lab10/Department.java | 24 +++
src/main/java/koz01/java2/lab10/Employee.java | 35 ++++
.../koz01/java2/lab10/NonTeachingStaff.java | 8 +-
src/main/java/koz01/java2/lab10/Staff.java | 16 +-
src/main/java/koz01/java2/lab10/Teacher.java | 29 ++++
.../java/koz01/java2/lab10/TeachingStaff.java | 11 +-
src/test/java/koz01/java2/lab10/DemoJPA.java | 151 ++++++++++++++++++
10 files changed, 309 insertions(+), 19 deletions(-)
create mode 100644 src/main/java/koz01/java2/lab10/BaseEntity.java
create mode 100644 src/main/java/koz01/java2/lab10/Clas.java
create mode 100644 src/main/java/koz01/java2/lab10/Department.java
create mode 100644 src/main/java/koz01/java2/lab10/Employee.java
create mode 100644 src/main/java/koz01/java2/lab10/Teacher.java
diff --git a/pom.xml b/pom.xml
index 6d8604e..d601a27 100644
--- a/pom.xml
+++ b/pom.xml
@@ -107,6 +107,15 @@
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven.compiler.version}</version>
+ <configuration>
+ <annotationProcessorPaths>
+ <path>
+ <groupId>org.projectlombok</groupId>
+ <artifactId>lombok</artifactId>
+ <version>${lombok.version}</version>
+ </path>
+ </annotationProcessorPaths>
+ </configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
diff --git a/src/main/java/koz01/java2/lab10/BaseEntity.java b/src/main/java/koz01/java2/lab10/BaseEntity.java
new file mode 100644
index 0000000..b1ed9db
--- /dev/null
+++ b/src/main/java/koz01/java2/lab10/BaseEntity.java
@@ -0,0 +1,21 @@
+package koz01.java2.lab10;
+
+import java.io.Serializable;
+
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.MappedSuperclass;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+
+@MappedSuperclass
+@EqualsAndHashCode
+public class BaseEntity implements Serializable {
+
+ @Getter
+ @Id
+ @GeneratedValue(strategy = GenerationType.AUTO)
+ private Long id;
+}
diff --git a/src/main/java/koz01/java2/lab10/Clas.java b/src/main/java/koz01/java2/lab10/Clas.java
new file mode 100644
index 0000000..20993ff
--- /dev/null
+++ b/src/main/java/koz01/java2/lab10/Clas.java
@@ -0,0 +1,24 @@
+package koz01.java2.lab10;
+
+import java.util.Set;
+
+import javax.persistence.Entity;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Entity
+@AllArgsConstructor
+@NoArgsConstructor
+public class Clas extends BaseEntity {
+
+ @Getter
+ @Setter
+ private String cname;
+
+ @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
new file mode 100644
index 0000000..132b6ed
--- /dev/null
+++ b/src/main/java/koz01/java2/lab10/Department.java
@@ -0,0 +1,24 @@
+package koz01.java2.lab10;
+
+import java.util.List;
+
+import javax.persistence.Entity;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Entity
+@AllArgsConstructor
+@NoArgsConstructor
+public class Department extends BaseEntity {
+
+ @Getter
+ @Setter
+ private String name;
+
+ @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
new file mode 100644
index 0000000..259c167
--- /dev/null
+++ b/src/main/java/koz01/java2/lab10/Employee.java
@@ -0,0 +1,35 @@
+package koz01.java2.lab10;
+
+import javax.persistence.Entity;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Entity
+@AllArgsConstructor
+@NoArgsConstructor
+public class Employee extends BaseEntity {
+
+ @Getter
+ @Setter
+ private int eid;
+
+ @Getter
+ @Setter
+ private String ename;
+
+ @Getter
+ @Setter
+ private double salary;
+
+ @Getter
+ @Setter
+ private String deg;
+
+ @Setter
+ @Getter
+ private Department department;
+
+}
diff --git a/src/main/java/koz01/java2/lab10/NonTeachingStaff.java b/src/main/java/koz01/java2/lab10/NonTeachingStaff.java
index 590ca24..59b164a 100644
--- a/src/main/java/koz01/java2/lab10/NonTeachingStaff.java
+++ b/src/main/java/koz01/java2/lab10/NonTeachingStaff.java
@@ -2,16 +2,16 @@ package koz01.java2.lab10;
import javax.persistence.Entity;
-import lombok.Data;
-import lombok.EqualsAndHashCode;
+import lombok.Getter;
import lombok.NoArgsConstructor;
+import lombok.Setter;
-@Data
-@EqualsAndHashCode(callSuper = true)
@Entity
@NoArgsConstructor
public class NonTeachingStaff extends Staff {
+ @Getter
+ @Setter
private String areaexpertise;
public NonTeachingStaff(String sname, String areaexpertise) {
diff --git a/src/main/java/koz01/java2/lab10/Staff.java b/src/main/java/koz01/java2/lab10/Staff.java
index 891118f..6f09a62 100644
--- a/src/main/java/koz01/java2/lab10/Staff.java
+++ b/src/main/java/koz01/java2/lab10/Staff.java
@@ -1,24 +1,18 @@
package koz01.java2.lab10;
-import java.io.Serializable;
-
import javax.persistence.Entity;
-import javax.persistence.GeneratedValue;
-import javax.persistence.GenerationType;
-import javax.persistence.Id;
-import lombok.Data;
+import lombok.Getter;
import lombok.NoArgsConstructor;
+import lombok.Setter;
-@Data
@Entity
@NoArgsConstructor
-public class Staff implements Serializable {
+public class Staff extends BaseEntity {
- @Id
- @GeneratedValue(strategy = GenerationType.AUTO)
- private Integer id;
+ @Getter
+ @Setter
private String sname;
public Staff(String sname) {
diff --git a/src/main/java/koz01/java2/lab10/Teacher.java b/src/main/java/koz01/java2/lab10/Teacher.java
new file mode 100644
index 0000000..ee1c357
--- /dev/null
+++ b/src/main/java/koz01/java2/lab10/Teacher.java
@@ -0,0 +1,29 @@
+
+package koz01.java2.lab10;
+
+import java.util.Set;
+
+import javax.persistence.Entity;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Entity
+@AllArgsConstructor
+@NoArgsConstructor
+public class Teacher extends BaseEntity {
+
+ @Getter
+ @Setter
+ private String tname;
+
+ @Getter
+ @Setter
+ private String subject;
+
+ @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 2ff0f36..7900ce4 100644
--- a/src/main/java/koz01/java2/lab10/TeachingStaff.java
+++ b/src/main/java/koz01/java2/lab10/TeachingStaff.java
@@ -2,17 +2,20 @@ package koz01.java2.lab10;
import javax.persistence.Entity;
-import lombok.Data;
-import lombok.EqualsAndHashCode;
+import lombok.Getter;
import lombok.NoArgsConstructor;
+import lombok.Setter;
-@Data
-@EqualsAndHashCode(callSuper = true)
@Entity
@NoArgsConstructor
public class TeachingStaff extends Staff {
+ @Getter
+ @Setter
private String qualification;
+
+ @Getter
+ @Setter
private String subjectexpertise;
public TeachingStaff(String sname, String qualification,
diff --git a/src/test/java/koz01/java2/lab10/DemoJPA.java b/src/test/java/koz01/java2/lab10/DemoJPA.java
index 1ca86ba..c48bb4e 100644
--- a/src/test/java/koz01/java2/lab10/DemoJPA.java
+++ b/src/test/java/koz01/java2/lab10/DemoJPA.java
@@ -1,5 +1,10 @@
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;
import javax.persistence.Persistence;
@@ -33,4 +38,150 @@ public class DemoJPA {
entitymanager.close();
emfactory.close();
}
+
+ @Test
+ public void demostrateManyToOne() {
+ EntityManagerFactory emfactory = Persistence.createEntityManagerFactory(
+ "Eclipselink_JPA");
+ 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(
+ "Eclipselink_JPA");
+ 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(
+ "Eclipselink_JPA");
+ 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();
+ }
+ }
}
--
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