I am trying to fetch data from database using hibernate annotation but it is not working as my expected. I have a two table Employee and Department. the java code is as below :
Employee class
@Entity
@Table(name = "EMPLOYEE")
public class EmployeeBO {
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
@Column(name = "EMPID")
private int empId;
@Column(name = "EMPNAME")
private String empName;
@Column(name = "SALARY")
private int empSalary;
@Column(name = "EMPADDRESS")
private String empAddress;
@Column(name = "EMPAGE")
private int empAge;
@Column(name = "DEPTID")
private Integer deptId;
@ManyToOne(fetch=FetchType.EAGER)
@JoinColumn(name="DEPTID", nullable = true, insertable = false, updatable = false)
private DepartmentBO departmentBO;
// getter and setter
}
Department class :
@Entity
@Table(name = "DEPARTMENT")
public class DepartmentBO {
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
@Column(name = "DEPTID")
private int deptid;
@Column(name = "DEPTNAME")
private String deptName;
// getter and setter.
}
spring-servlet.xml file :
<?xml version="1.0" encoding="UTF-8"?>
<!--?xml version="1.0" encoding="UTF-8"?-->
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
<context:annotation-config></context:annotation-config>
<context:component-scan base-package="com.web"></context:component-scan>
<context:property-placeholder location="file:D:/EasyProp/db.properties" ignore-unresolvable="false"/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
<bean id="basicDataSource"
class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${driver.classname}" />
<property name="url" value="${driver.url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
<!-- <property name="initialSize" value="10"/> -->
<!-- <property name="maxActive" value="25"/> -->
<!-- <property name="maxIdle" value="25"/> -->
<!-- <aop:scoped-proxy/> -->
</bean>
<tx:annotation-driven />
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="mySessionFactory" />
</bean>
<!-- <bean id="dbUtil" class="com.web.utility.OnLoadStartUp" init-method="initialize">
<property name="dataSource" ref="basicDataSource" />
</bean> -->
<!-- <bean id="loadOnStartUp" class="com.web.utility.LoadOnStartUp">
<property name="baseService" ref="baseService"></property>
</bean> -->
<bean id="mySessionFactory"
class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="basicDataSource" />
<property name="annotatedClasses">
<list>
<value>com.web.bo.EmployeeBO</value>
<value>com.web.bo.DepartmentBO</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.hmb2ddl.auto">validate</prop>
<prop key="hibernate.generate_statistics">true</prop>
<prop key="hibernate.jdbc.fetch_size">10</prop>
<prop key="hibernate.jdbc.batch_size">25</prop>
<prop key="hibernate.jdbc.batch_versioned_data">true</prop>
<prop key="hibernate.max_fetch_depth">3</prop>
<prop key="hibernate.default_batch_fetch_size">8</prop>
<prop key="hibernate.order_updates">true</prop>
<prop key="hibernate.connection.release_mode">on_close</prop>
<prop key="hibernate.bytecode.use_reflection_optimizer">true</prop>
<prop key="hibernate.bytecode.provider">javassist</prop>
</props>
</property>
</bean>
</beans>
when i trying to fetch all data from employee and department table but it only returns the data from employee table my code for hit hql query as below :
List<EmployeeBO> empList = null;
empList = sessionFactory.getCurrentSession().createQuery("From "+employeeBO.getClass().getName()).list();
above query is hit as below on database.
select employeebo0_.EMPID as EMPID0_, employeebo0_.DEPTID as DEPTID0_, employeebo0_.EMPADDRESS as EMPADDRESS0_, employeebo0_.EMPAGE as EMPAGE0_, employeebo0_.EMPNAME as EMPNAME0_, employeebo0_.SALARY as SALARY0_ from EMPLOYEE employeebo0_
But i want all data of the employee table and department table using Eager fetching.
