Modelo de XML para crear EntityManager con escaneo de paquetes (JPA y Entity) por propiedades

jpa-config.xml

<?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:jpa="http://www.springframework.org/schema/data/jpa"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                           http://www.springframework.org/schema/beans/spring-beans.xsd
                           http://www.springframework.org/schema/data/jpa
                           http://www.springframework.org/schema/data/jpa/spring-jpa.xsd">

	<jpa:repositories base-package="${es.lanyu.jpa-package}" />

	<bean id="entityManagerFactory"
		class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<!-- Decimos donde buscar entidades -->
		<property name="packagesToScan" value="${es.lanyu.entities-package}" />
		<!-- Decimos como se mapean de Java a BD y viceversa -->
		<property name="mappingResources">
			<list>
				<value>jpa/IdentificableString.orm.xml</value>
				<value>jpa/AbstractNombrable.orm.xml</value>
			</list>
		</property>
		<property name="jpaVendorAdapter">
			<!-- Implementacion de JPA que vamos a usar -->
			<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
		</property>
		<property name="jpaProperties">
			<props>
				<prop key="hibernate.dialect">${hibernate.dialect}</prop>
				<!-- <prop key="hibernate.show_sql">true</prop> -->
				<prop key="hibernate.hbm2ddl.auto">update</prop>
				<prop key="hibernate.enable_lazy_load_no_trans">true</prop>
			</props>
		</property>
	</bean>

	<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
		<property name="entityManagerFactory" ref="entityManagerFactory" />
	</bean>

	<bean id="persistenceExceptionTranslationPostProcessor"
		  class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />

</beans>