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Commit d0ace55

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author
Rajeev Kumar Singh
committed
Examples and Readme
1 parent 3b4a927 commit d0ace55

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-43
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10 files changed

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‎Readme.md‎

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## Hibernate Tutorials and Demos with Spring Boot and JPA
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+ 1. [Hibernate One to One Mapping Example with Spring Boot and JPA](https://www.callicoder.com/hibernate-spring-boot-jpa-one-to-one-mapping-example/)
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+ 2. [Hibernate One to Many Mapping Example with Spring Boot and JPA](https://www.callicoder.com/hibernate-spring-boot-jpa-one-to-many-mapping-example/)
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+ 3. [Hibernate Many to Many Mapping Example with Spring Boot and JPA](https://www.callicoder.com/hibernate-spring-boot-jpa-many-to-many-mapping-example/)
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+ 4. [Hibernate Embeddable Type Example with Spring Boot and JPA](https://www.callicoder.com/hibernate-spring-boot-jpa-embeddable-demo/)
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+ 5. [Hibernate Composite Primary Key Example with Spring Boot and JPA](https://www.callicoder.com/hibernate-spring-boot-jpa-composite-primary-key-example/)

‎hibernate-composite-primary-key-demo/src/main/java/com/example/hibernate/HibernateCompositePrimaryKeyDemoApplication.java‎

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@@ -20,10 +20,21 @@ public static void main(String[] args) {
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@Override
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public void run(String... args) throws Exception {
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// Cleanup employees table
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employeeRepository.deleteAllInBatch();
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Employee employee = new Employee(new EmployeeIdentity("E-123", "D-457"), "Rajeev Kumar Singh", "rajeev@callicoder.com", "+91-9999999999");
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// Insert a new Employee in the database
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Employee employee = new Employee(new EmployeeIdentity("E-123", "D-457"),
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"Rajeev Kumar Singh",
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"rajeev@callicoder.com",
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"+91-9999999999");
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employeeRepository.save(employee);
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// Retrieving an Employee Record with the composite primary key
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employeeRepository.findOne(new EmployeeIdentity("E-123", "D-457"));
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// Retrieving all the employees of a particular company
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employeeRepository.findByEmployeeIdentityCompanyId("D-457");
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}
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}

‎hibernate-composite-primary-key-demo/src/main/java/com/example/hibernate/model/Employee.java‎

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public class Employee {
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@EmbeddedId
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private EmployeeIdentity identity;
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private EmployeeIdentity employeeIdentity;
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@NotNull
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private String name;
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}
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public Employee(EmployeeIdentity identity, String name, String email, String phoneNumber) {
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this.identity = identity;
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public Employee(EmployeeIdentity employeeIdentity, String name, String email, String phoneNumber) {
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this.employeeIdentity = employeeIdentity;
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this.name = name;
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this.email = email;
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this.phoneNumber = phoneNumber;
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}
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public EmployeeIdentity getIdentity() {
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return identity;
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public EmployeeIdentity getEmployeeIdentity() {
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return employeeIdentity;
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}
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public void setIdentity(EmployeeIdentity identity) {
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this.identity = identity;
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public void setEmployeeIdentity(EmployeeIdentity employeeIdentity) {
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this.employeeIdentity = employeeIdentity;
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}
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public String getName() {

‎hibernate-composite-primary-key-demo/src/main/java/com/example/hibernate/model/EmployeeIdentity.java‎

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@Embeddable
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public class EmployeeIdentity implements Serializable {
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@NotNull
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private String employeeCode;
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private String employeeId;
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@NotNull
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private String companyCode;
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private String companyId;
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public EmployeeIdentity() {
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}
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public EmployeeIdentity(String employeeCode, String companyCode) {
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this.employeeCode = employeeCode;
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this.companyCode = companyCode;
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public EmployeeIdentity(String employeeId, String companyId) {
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this.employeeId = employeeId;
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this.companyId = companyId;
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}
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public String getEmployeeCode() {
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return employeeCode;
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public String getEmployeeId() {
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return employeeId;
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}
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public void setEmployeeCode(String employeeCode) {
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this.employeeCode = employeeCode;
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public void setEmployeeId(String employeeId) {
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this.employeeId = employeeId;
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}
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public String getCompanyCode() {
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return companyCode;
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public String getCompanyId() {
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return companyId;
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}
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public void setCompanyCode(String companyCode) {
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this.companyCode = companyCode;
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public void setCompanyId(String companyId) {
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this.companyId = companyId;
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}
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@Override
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EmployeeIdentity that = (EmployeeIdentity) o;
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if (!employeeCode.equals(that.employeeCode)) return false;
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return companyCode.equals(that.companyCode);
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if (!employeeId.equals(that.employeeId)) return false;
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return companyId.equals(that.companyId);
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}
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@Override
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public int hashCode() {
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int result = employeeCode.hashCode();
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result = 31 * result + companyCode.hashCode();
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int result = employeeId.hashCode();
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result = 31 * result + companyId.hashCode();
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return result;
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}
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}

‎hibernate-composite-primary-key-demo/src/main/java/com/example/hibernate/repository/EmployeeRepository.java‎

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import org.springframework.data.jpa.repository.JpaRepository;
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import org.springframework.stereotype.Repository;
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import java.util.List;
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/**
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* Created by rajeevkumarsingh on 22/11/17.
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*/
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@Repository
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public interface EmployeeRepository extends JpaRepository<Employee, EmployeeIdentity> {
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List<Employee> findByEmployeeIdentityCompanyId(String companyId);
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}

‎hibernate-embeddable-demo/src/main/java/com/example/hibernate/model/Address.java‎

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import javax.persistence.Embeddable;
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import javax.validation.constraints.NotNull;
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import javax.validation.constraints.Size;
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/**
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* Created by rajeevkumarsingh on 22/11/17.
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*/
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@Embeddable
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public class Address {
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@NotNull
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private String houseNumber;
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@Size(max = 100)
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private String addressLine1;
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@NotNull
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private String street;
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@Size(max = 100)
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private String addressLine2;
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@NotNull
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@Size(max = 100)
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private String city;
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@NotNull
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@Size(max = 100)
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private String state;
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@NotNull
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@Size(max = 100)
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private String country;
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@NotNull
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@Size(max = 6)
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private String zipCode;
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public Address() {
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}
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public Address(String houseNumber, String street, String city, String state, String country, String zipCode) {
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this.houseNumber = houseNumber;
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this.street = street;
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public Address(String addressLine1, String addressLine2, String city, String state, String country, String zipCode) {
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this.addressLine1 = addressLine1;
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this.addressLine2 = addressLine2;
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this.city = city;
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this.state = state;
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this.country = country;
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this.zipCode = zipCode;
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}
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public String getHouseNumber() {
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return houseNumber;
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public String getAddressLine1() {
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return addressLine1;
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}
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public void setHouseNumber(String houseNumber) {
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this.houseNumber = houseNumber;
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public void setAddressLine1(String addressLine1) {
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this.addressLine1 = addressLine1;
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}
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public String getStreet() {
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return street;
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public String getAddressLine2() {
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return addressLine2;
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}
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public void setStreet(String street) {
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this.street = street;
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public void setAddressLine2(String addressLine2) {
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this.addressLine2 = addressLine2;
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}
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public String getCity() {

‎hibernate-embeddable-demo/src/main/java/com/example/hibernate/model/Name.java‎

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import javax.persistence.Embeddable;
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import javax.validation.constraints.NotNull;
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import javax.validation.constraints.Size;
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/**
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* Created by rajeevkumarsingh on 22/11/17.
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*/
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@Embeddable
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public class Name {
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@NotNull
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@Size(max = 40)
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private String firstName;
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@Size(max = 40)
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private String middleName;
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@Size(max = 40)
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private String lastName;
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public Name() {

‎hibernate-embeddable-demo/src/main/java/com/example/hibernate/model/User.java‎

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import org.hibernate.validator.constraints.Email;
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import javax.persistence.*;
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import javax.validation.Valid;
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import javax.validation.constraints.NotNull;
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/**
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@GeneratedValue(strategy = GenerationType.AUTO)
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private Long id;
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@Valid
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@Embedded
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private Name name;
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@NotNull
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@Email
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@Column(unique = true)
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private String email;
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@Valid
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@Embedded
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@AttributeOverrides(value = {
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@AttributeOverride(name = "addressLine1", column = @Column(name = "houseNumber")),
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@AttributeOverride(name = "addressLine2", column = @Column(name = "street"))
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})
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private Address address;
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public User() {
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package com.example.hibernate.repository;
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import com.example.hibernate.model.Name;
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import com.example.hibernate.model.User;
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import org.springframework.data.jpa.repository.JpaRepository;
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import org.springframework.stereotype.Repository;
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import java.util.List;
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/**
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* Created by rajeevkumarsingh on 22/11/17.
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*/
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@Repository
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public interface UserRepository extends JpaRepository<User, Long> {
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User findByEmail(String email);
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List<User> findByName(Name name);
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List<User> findByNameFirstName(String firstName);
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List<User> findByAddressCountry(String country);
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}

‎hibernate-one-to-many-demo/src/main/java/com/example/hibernate/model/Post.java‎

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@OneToMany(cascade = CascadeType.ALL,
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fetch = FetchType.LAZY,
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mappedBy = "post",
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orphanRemoval = true)
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mappedBy = "post")
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private Set<Comment> comments = new HashSet<>();
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public Post() {

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