<!-- Standard Spring Hibernate Reader -->
<bean id="hibernateItemReader" class="org.springframework.batch.item.database.HibernateCursorItemReader" scope="step">
    <property name="sessionFactory" ref="sessionFactory" />
    <property name="queryString" value="#{jobExecutionContext[HQL]}" />
    <property name="useStatelessSession" value="false"/>
</bean>

<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean" lazy-init="true">
    <property name="configLocation" value="classpath:hibernate.cfg.xml"/>
    <property name="cacheableMappingLocations" value="classpath*:META-INF/mapping/*.hbm.xml"/>
</bean>

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE hibernate-configuration SYSTEM "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
  <session-factory>
    <!-- Connection to database  -->
    <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
    <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/SAKILA</property>
    <property name="hibernate.connection.username">root</property>
    <property name="hibernate.connection.password">****</property>

    <!-- Conversion from HQL to SQL in log -->
    <property name="show_sql">false</property>
    <property name="format_sql">true</property>
    <property name="use_sql_comments">true</property>

    <!-- Session and pool settings -->
    <property name="hibernate.current_session_context_class">thread</property>
    <property name="hibernate.c3p0.min_size">5</property>
    <property name="hibernate.c3p0.max_size">20</property>
    <property name="hibernate.c3p0.timeout">1800</property>
    <property name="hibernate.c3p0.idle_test_period">1000</property>
    <property name="hibernate.c3p0.max_statements">50</property>
  </session-factory>
</hibernate-configuration>

@Bean
@Lazy(true)
public SessionFactory sessionFactory(){
    LocalSessionFactoryBean session = new LocalSessionFactoryBean();
    session.setConfigLocation(hibernateConfig());
    session.setCacheableMappingLocations(mappings());
    return session.getObject();
}

@Bean
@StepScope
public HibernateCursorItemReader reader(@Value("#{jobExecutionContext[HQL]}") String HQLQuery){
    HibernateCursorItemReader reader = new HibernateCursorItemReader<>();
    reader.setSessionFactory(sessionFactory());
    reader.setQueryString(HQLQuery);
    reader.setUseStatelessSession(false);
    return reader;
}

@Autowired
@Bean
public SessionFactory sessionFactory2(){
    LocalSessionFactoryBuilder sessionBuilder  = new LocalSessionFactoryBuilder(dataSource());
    // ?? sessionBuilder.setConfigLocation(); ??
    sessionBuilder.addDirectory(new File(url.toURI()));
}