EDIT

<?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"

	xsi:schemaLocation="http://www.springframework.org/schema/beans

    http://www.springframework.org/schema/beans/spring-beans-4.3.xsd

    http://www.springframework.org/schema/context

    http://www.springframework.org/schema/context/spring-context-4.3.xsd">

    <bean id="dataSource"  lazy-init="true" class="eu.etaxonomy.cdm.database.SelectableDataSource">

    	<!--  The property beanDefinitionFile defaults to "datasources.xml" in {USER_HOME}./cdmLibrary 

    	WARNING !!!

    	The beanDefinitionFile now mus be configured in 

    	eu.etaxonomy.cdm.database.DataSourceBeanLoader

    	-->

    </bean>

    <!-- This configures default properties, which can overridden with the file specified by the location property -->

    <bean id="hibernateProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean">

        <property name="properties">

            <props>

             <!-- 

                  Configuring the C3P0ConnectionProvider

                  ========================================

                  see http://www.mchange.com/projects/c3p0/index.html#hibernate-specific

                  and also org.springframework.orm.hibernate3.AbstractSessionFactoryBean.setDataSource(DataSource dataSource)

                  IMPORTANT: 

                  Because of the constraint (1) the org.hibernate.connection.C3P0ConnectionProvider anc not be used 

                  for the cdm library because it requires the dataSource bean in some cases. 

				          (1)

				          Do NOT specify the dataSource in the sessionFactory for example in the 

				          org.springframework.orm.hibernate5.LocalSessionFactoryBean

				          !!!==> If *dataSource* is set, this will override corresponding settings in Hibernate properties.!!!

 						  If this is set, the Hibernate settings should not define a connection provider to 

 					      avoid meaningless double configuration.

				          (2)

				          Hibernate uses the hibernate.c3p0.max_size property to determine if c3p0

                          is begin used.  Therefore the max_size property MUST be set. - maybe not need in hibernate 3.4 +

                          (3) If you are using Hibernate's C3P0ConnectionProvider you must set the following properties 

                          in your hibernate configuration, using hibernate-specific configuration keys. 

                          All other properties must be defined as usual in a c3p0.properties file. 

                          This is confusing, and will hopefully be simplified some time in the future, but for now... 

                          DOUMENTATION UPDATE (2015-05-22):

                          Hibernate's C3P0ConnectionProvider renames 7 c3p0 configuration properties, which, 

                          if set in your hibernate configuration, will override any configuration you may have set 

                          in a c3p0.properties file.

                          TODO: are points (2) and (3) still valid? I don't think so! (AK)

                          	hibernate.c3p0.acquire_increment

							hibernate.c3p0.idle_test_period

							hibernate.c3p0.timeout

							hibernate.c3p0.max_size

							hibernate.c3p0.max_statements

							hibernate.c3p0.min_size

							hibernate.c3p0.validate 

				      -->

              <prop key="hibernate.hbm2ddl.auto">update</prop>

              <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>

              <prop key="hibernate.cache.region.factory_class">org.hibernate.cache.internal.NoCachingRegionFactory</prop>

              <prop key="hibernate.show_sql">false</prop>

              <prop key="hibernate.format_sql">false</prop>

              <prop key="hibernate.search.default.indexBase">${user.home}/.cdmLibrary/</prop>

            </props>

        </property>

    </bean>

</beans>