spring data jpa onetoone

spring data jpa onetoone:

----------------------------------------------------------------------By, Madhav
                                                                                                        mail: gmrdizzy@gmail.com

TUTIORALS FROM MADHAV:
 

     JAVA-SERVLETS     JAVA-JDBC     JAVA-JSP       HIBERNATE-SHCEMABASED 

    HIBERNATE-ANNOTATIONS     SPRING-IOC       SPRING –AOP-SCHEMABASED   

    SPRING-AOP-ANNOTATIONS      SPRING -DAO     SPRIN-MVC     SPRING-SECUTITY

     SPRING-DATA-JPA     REST-WEB-SERVICE     STRUTS2HIBERNATE    GWT.... 

NOTE:   1)  maven dependeccy pom.xml  , we can get from previous example.
               2) presestance.xml , beans.xml file also we can get from my previous example program.


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Employee.java

--------------------------------------------------------------------------------------

package

repository;

　

import

javax.persistence.*;

import

org.springframework.data.jpa.domain.AbstractPersistable;

@Entity

@Table

(name="employee1")

public

class Employee extends AbstractPersistable<Long>{

private String ename;

@OneToOne(mappedBy="employee", cascade=CascadeType.ALL)

private PersonalDetails personalDetails;

public PersonalDetails getPersonalDetails() {

return personalDetails;

}

public void setPersonalDetails(PersonalDetails personalDetails) {

this.personalDetails = personalDetails;

}

public String getEname() {

return ename;

}

public void setEname(String ename) {

this.ename = ename;

}

}

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EmployeeRepository .java

---------------------------------------------------------------------------

package repository;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
public interface EmployeeRepository extends JpaRepository<Employee, Long>,
JpaSpecificationExecutor<Employee>{
}
--------------------------------------------------------------------------


PersonalDetails .java

----------------------------------------------------------------------------------------

package

repository;

　

import

javax.persistence.*;

import

org.springframework.data.jpa.domain.AbstractPersistable;

@Entity

@Table

(name="personaldetails")

public

class PersonalDetails extends AbstractPersistable<Long>{

private String firstname;

private String lastname;

@OneToOne

@PrimaryKeyJoinColumn

private Employee employee;

public Employee getEmployee() {

return employee;

}

public void setEmployee(Employee employee) {

this.employee = employee;

}

public String getFirstname() {

return firstname;

}

public void setFirstname(String firstname) {

this.firstname = firstname;

}

public String getLastname() {

return lastname;

}

public void setLastname(String lastname) {

this.lastname = lastname;

}

}

---------------------------------------------------------------------------

PersonalDetailsRepository

-----------------------------------------------------------------------------------------------------------\

package

repository;

import

org.springframework.data.jpa.repository.JpaRepository;

import

org.springframework.data.jpa.repository.JpaSpecificationExecutor;

public

interface PersonalDetailsRepository extends JpaRepository<PersonalDetails, Long>,

JpaSpecificationExecutor<PersonalDetails>{

}

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TestCase .java

-----------------------------------------------------------------------------------------

package madhav;
import repository.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
@Service
public class TestCase {

 @Autowired
    private EmployeeRepository employeeRepository;
 @Autowired
 private PersonalDetailsRepository personalDetailsRepository;
   
    @Transactional
 public void createEmployee() {
         
         try
         {
       
          PersonalDetails pd=new PersonalDetails();
            
             pd.setFirstname("abc");
             pd.setLastname("rao");
             Employee e=new Employee();
             e.setEname("madhav");
             pd.setEmployee(e);
           
           System.out.println("before save");
           employeeRepository.saveAndFlush(e);
           personalDetailsRepository.saveAndFlush(pd);
            
           /*
            *
            NOTE:      another situation of onetoone
                       iam trying to attach the "PersonalDetails" details to the exist "Employee"
          
          
          
           Employee employee=employeeRepository.findOne(1);
           PersonalDetails pd=new PersonalDetails();
           pd.setFirstname("abc");
           pd.setLastname("rao");
           pd.setEmployee(e);
           employeeRepository.saveAndFlush(e);
           personalDetailsRepository.saveAndFlush(pd);*/
          
          
            
         }
         catch(Exception ex)
         {
         
         }
        
     
 }

 public PersonalDetailsRepository getPersonalDetailsRepository() {
  return personalDetailsRepository;
 }

 public void setPersonalDetailsRepository(
   PersonalDetailsRepository personalDetailsRepository) {
  this.personalDetailsRepository = personalDetailsRepository;
 }

 public EmployeeRepository getEmployeeRepository() {
  return employeeRepository;
 }

 public void setEmployeeRepository(EmployeeRepository employeeRepository) {
  this.employeeRepository = employeeRepository;
 }

 

}
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output from console:

--------------------------------

07:25:00.282 [main] DEBUG org.hibernate.SQL -

insert

into

employee1

(ename)

values

(?)

07:25:00.437 [main] DEBUG org.hibernate.SQL -

insert

into

personaldetails

(firstname, lastname)

values

(?, ?)

output from mysql console

------------------------------------

Related topics:

               1.  pring data jpa example program for insert

       2. spring data jpa example for delete

       3.  spring data jpa example for update

       4.  spring data jpa inheritance table for subclass

       5.  spring data jpa inheritance table for class

        6. spring data jpa onetoone

7.spring data jpa onetomany

       8. spring data jpa manytomany

TUTIORALS FROM MADHAV:
 

     JAVA-SERVLETS     JAVA-JDBC     JAVA-JSP       HIBERNATE-SHCEMABASED 

    HIBERNATE-ANNOTATIONS     SPRING-IOC       SPRING –AOP-SCHEMABASED   

    SPRING-AOP-ANNOTATIONS      SPRING -DAO     SPRIN-MVC     SPRING-SECUTITY

     SPRING-DATA-JPA     REST-WEB-SERVICE     STRUTS2HIBERNATE    GWT....