com.bs.dao.EmployeeDao.java Source code

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Here is the source code for com.bs.dao.EmployeeDao.java

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package com.bs.dao;

import com.bs.model.EmployeeModel;
import com.bs.pojo.Employee;
import com.bs.util.HibernateUtil;
import java.util.Date;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
import org.springframework.stereotype.Service;

@Service
public class EmployeeDao implements EmployeeModel {

    @Override
    public boolean doUpdateEmployee(Employee employee) {
        Session s = HibernateUtil.getSessionFactory().openSession();
        try {
            s.beginTransaction();
            s.update(employee);
            s.getTransaction().commit();
            return true;
        } catch (Exception e) {
            return false;

        } finally {
            s.close();
        }
    }

    @Override
    public boolean doDeleteEmployee(Employee employee) {
        Session s = HibernateUtil.getSessionFactory().openSession();
        try {
            s.beginTransaction();
            s.delete(employee);
            s.getTransaction().commit();
            return true;
        } catch (Exception e) {
            return false;

        } finally {
            s.close();
        }
    }

    @Override
    public List<Employee> findAllEmployee() {
        Session s = HibernateUtil.getSessionFactory().openSession();
        try {
            s.beginTransaction();
            Query q = s.createQuery("From Employee");
            List<Employee> eList = q.list();
            s.getTransaction().commit();
            return eList;
        } catch (Exception e) {
            return null;
        } finally {
            s.close();
        }
    }

    @Override
    public List<Employee> findByEmployee(int empId) {
        Session s = HibernateUtil.getSessionFactory().openSession();
        try {
            s.beginTransaction();
            Query q = s.createQuery("From Employee where empId=" + empId + "");
            List<Employee> eList = q.list();
            s.getTransaction().commit();
            return eList;
        } catch (Exception e) {
            return null;
        } finally {
            s.close();
        }
    }

    @Override
    public boolean doInsertEmployee(Employee employee) {
        Session s = HibernateUtil.getSessionFactory().openSession();
        try {
            s.beginTransaction();
            s.save(employee);
            s.getTransaction().commit();
            return true;
        } catch (Exception e) {
            return false;

        } finally {
            s.close();
        }
    }

}