Change visibility of FactoryBeans.

Closes: #1165

spring-data-cassandra/src/main/java/org/springframework/data/cassandra/config/CqlSessionParser.java

@@ -163,7 +163,7 @@ class CqlSessionParser extends AbstractSingleBeanDefinitionParser {
 	 * Wrapper to enable setting contact points as string to avoid over loaded setContactPoints reflection confusion that
 	 * depends on the reflection method load order.
 	 */
-	static class ExtendedCqlSessionFactoryBean extends CqlSessionFactoryBean {
+	public static class ExtendedCqlSessionFactoryBean extends CqlSessionFactoryBean {
 
 		/**
 		 * Bridge method for {@link #setContactPoints(String)}.

spring-data-cassandra/src/main/java/org/springframework/data/cassandra/config/PersistentEntitiesFactoryBean.java

@@ -24,7 +24,7 @@ import org.springframework.data.mapping.context.PersistentEntities;
  * Simple helper to be able to wire the {@link MappingContext} from a {@link CassandraConverter} bean available in the
  * application context.
  */
-class PersistentEntitiesFactoryBean implements FactoryBean<PersistentEntities> {
+public class PersistentEntitiesFactoryBean implements FactoryBean<PersistentEntities> {
 
 	private final CassandraConverter converter;
 

spring-data-cassandra/src/main/java/org/springframework/data/cassandra/config/SortedResourcesFactoryBean.java

@@ -35,7 +35,7 @@ import org.springframework.core.io.support.ResourcePatternUtils;
  * @author Mark Paluch
  * @since 3.0
  */
-class SortedResourcesFactoryBean extends AbstractFactoryBean<Resource[]> implements ResourceLoaderAware {
+public class SortedResourcesFactoryBean extends AbstractFactoryBean<Resource[]> implements ResourceLoaderAware {
 
 	private final List<String> locations;