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EJB Fundamentals

Hibernate

  1. Advantage of Hibernate over JDBC
  2. Hibernate Setup with an web Application
  3. First Hibernate Application
  4. Hibernate mapping with Database TABLE
  5. Hibernate Data Type-Java Data Type - SQL Data Type mapping
  6. One to Many Relation in Hibernate
  7. One to Many Relation in Hibernate bi-directional
  8. Many to Many Relation in Hibernate
  9. HQL: The Hibernate Query Language
  10. Criteria Queries
  11. Criteria Queries : Equal (eq), Not Equal(ne), Less than (le), greater than (gt),greater than or equal(ge) and Ordering the results
  12. Criteria Queries: And OR conditions
  13. Hibernate generator to generate id (primary key)
  14. prevent concurrent update in Hibernate,slate object updatation in Hibernate,version checking in Hibernate

    Struts


  1. Model View Controller (MVC)
  2. Model View Controller (MVC)
  3. Struts Flow-How Struts Works?
  4. Struts Tutorial - Struts Setup- First Struts Action class setup
  5. Message Resources
  6. Validation Framework
  7. Validation Framework-client side
  8. ForwardAction
  9. IncludeAction
  10. DispatchAction
  11. LookupDispatchAction
  12. DynaActionForm
  13. DynaActionForm
  14. Struts Tutorial - Mutli-click prevention using struts tokens-Prevent Duplicate Submission
  15. Logic Iterate Map and List

JSP


  1. JSP Tutorial
  2. Introduction to JSP
  3. JSP Comments
  4. JSP Syntax
  5. JSP Scripting Elements :Scriptlet, expression, declaration
  6. JSP Directives
  7. implicit objects in JSP
  8. JSP Actions
  9. Introduction to JSP
  10. jsp:useBean
  11. The jsp:setProperty Action
  12. The jsp:getProperty Action
  13. Introduction to JSP

Spring


  1. Spring Tutorial
  2. Introduction to Spring
  3. Benefits of Using Spring Framework
  4. Inversion of Control in Spring
  5. Introduction to BeanFactory
  6. Dependency Injection in Spring
  7. Collections Setter Injection
  8. Bean Scopes in Spring
  9. Spring IOC Setup Step by Step
  10. Bean Lifecycle in Spring
  11. ApplicationContext
  12. MessageSources in Spring
  13. Web Spring MVC framework
  14. Developing Your First Spring Web Application
  15. Developing Your Second Spring Web Application with Spring Form
  16. Developing Your First Spring Web Application with Spring Validation Framework with Code Example
  17. Spring integration with Hibernate

Spring Tutorial Step by Step


Spring integration with Hibernate

Spring integration with Hibernate


Steps to Integrate Spring with Hibernate

Step 1. Create SessionFactory

Spring allows you to define resources like a JDBC DataSource or a Hibernate SessionFactory as beans in an application context. Set up a JDBC DataSource and a Hibernate SessionFactory on top of it.

<beans>
<bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="org.hsqldb.jdbcDriver"/>
<property name="url" value="jdbc:hsqldb:hsql://localhost:9001"/>
<property name="username" value="sa"/>
<property name="password" value="sa"/>
</bean>
<bean id="mySessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="myDataSource"/>
<property name="mappingResources">
<list>
<value>emp.hbm.xml</value>
</list>
</property>
<property name="hibernateProperties">
<value>
hibernate.dialect=org.hibernate.dialect.HSQLDialect
</value>
</property>
</bean>
</beans>

Step 2. Define HibernateTemplate and Create HibernateTemplate

The HibernateTemplate class provides many methods that mirror the methods exposed on the Hibernate Session interface.
Define DAO object and inject Session Factory.

<beans>
<bean id="empDao" class="com.techfaq.EmpDAO">
<property name="sessionFactory" ref="mySessionFactory"/>
</bean>
</beans>
EmpDAO.java class
public class EmpDAO {

private HibernateTemplate hibernateTemplate;

public void setSessionFactory(SessionFactory sessionFactory) {
this.hibernateTemplate = new HibernateTemplate(sessionFactory);
}

public Collection getEmpByDept(String dept) throws DataAccessException {
return this.hibernateTemplate.find("from com.bean.Emp e where e.dept=?", dept);
}
}

OR You can use

Plain Hibernate to access data base.

Define DAO object and inject Session Factory.
<beans>
<bean id="empDao" class="com.techfaq.EmpDAO">
<property name="sessionFactory" ref="mySessionFactory"/>
</bean>
</beans>
EmpDAO.java class
public class EmpDAO{

private SessionFactory sessionFactory;

public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}

public Collection getEmpByDept(String dept) {
return this.sessionFactory.getCurrentSession()
.createQuery("from com.bean.Emp e where e.dept=?")
.setParameter(0, dept)
.list();
}
}

OR You can use

HibernateDaoSupport.

HibernateDaoSupport base class offers methods to access the current transactional Session. EmpDAO.java class
public class EmpDAO extends HibernateDaoSupport {

public Collection getEmpByDept(String dept) throws DataAccessException, MyException {
Session session = getSession(false);
try {
Query query = session.createQuery("from com.bean.Emp e where e.dept=?");
query.setString(0, dept);
List result = query.list();
if (result == null) {
throw new MyException("No results.");
}
return result;
}
catch (HibernateException ex) {
throw convertHibernateAccessException(ex);
}
}
}

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