single jpa transaction manager for multiple entitymanagers - spring

Question

#Repository
#Transactional
#Scope("prototype")
public class EntityManagerImpl implements EntityManagerGenerator {
#PersistenceContext(unitName = "test")
#Qualifier("transactionManager")
private EntityManager entityManager;
#PersistenceContext(unitName = "test1")
#Qualifier("transactionManager1")
private EntityManager entityManager2;
#Override
public EntityManager getEntityManager(String userType) {
if(userType.equals("test")){
return entityManager2;
}else{
return entityManager;
}
}
here how to use according entitymanager wise transaction manager dynamically.below i shared my xml configure file.
<?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:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:cache="http://www.springframework.org/schema/cache"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-3.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd"
xmlns:p="http://www.springframework.org/schema/p" xmlns:tx="http://www.springframework.org/schema/tx">
<bean id="jpaVendorAdapter"
class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="database" value="ORACLE" />
<property name="showSql" value="false" />
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"
p:entityManagerFactory-ref="entityManagerFactory" />
<bean id="entityManagerFactory2"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="test1.ds" />
<property name="persistenceUnitName" value="test1" />
<property name="jpaVendorAdapter" ref="jpaVendorAdapterFC" />
<property name="persistenceXmlLocation" value="classpath:jpa-persistence.xml" />
</bean>
<bean id="jpaVendorAdapterFC"
class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="database" value="ORACLE" />
<property name="showSql" value="false" />
</bean>
<bean id="transactionManager1" class="org.springframework.orm.jpa.JpaTransactionManager"
p:entityManagerFactory-ref="entityManagerFactory2" />
<bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheCacheManager" p:cache-manager-ref="ehcache" />
<bean id="ehcache" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean" p:configLocation="classpath:ehcache.xml" />
<!-- Transaction manager for a single JPA EntityManagerFactory (alternative
to JTA) -->
<!-- Activates various annotations to be detected in bean classes: Spring's
#Required and #Autowired, as well as JSR 250's #PostConstruct, #PreDestroy
and #Resource (if available) and JPA's #PersistenceContext and #PersistenceUnit
(if available). -->
<context:component-scan base-package="com.wmi.test" annotation-config="true"
scope-resolver="org.springframework.context.annotation.Jsr330ScopeMetadataResolver"/>
<!-- Instruct Spring to perform declarative transaction management automatically
on annotated classes. -->
<tx:annotation-driven />
<cache:annotation-driven />
so how can i use single transaction manager for multiple data source according to my configuration
and here we are used for transactional manager as #Transactional annotation