Expose BeanFactory to RepositoryFactorySupport implementations.

Some implementations (Spring Data JPA especially) need access to the underlying BeanFactory. Add a protected getter.

Related: spring-projects/spring-data-jpa#2162

Closes #2614

Author: gregturn

src/main/java/org/springframework/data/repository/core/support/RepositoryFactorySupport.java

@@ -29,7 +29,6 @@
 import org.aopalliance.intercept.MethodInvocation;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-
 import org.springframework.aop.framework.ProxyFactory;
 import org.springframework.aop.interceptor.ExposeInvocationInterceptor;
 import org.springframework.beans.BeanUtils;
@@ -365,8 +364,7 @@ public <T> T getRepository(Class<T> repositoryInterface, RepositoryFragments fra
 
 		if (logger.isDebugEnabled()) {
 			logger
-					.debug(LogMessage.format("Finished creation of repository instance for %s.",
-				repositoryInterface.getName()));
+					.debug(LogMessage.format("Finished creation of repository instance for %s.", repositoryInterface.getName()));
 		}
 
 		return repository;
@@ -520,6 +518,10 @@ protected void validate(RepositoryMetadata repositoryMetadata) {
 
 	}
 
+	protected BeanFactory getBeanFactory() {
+		return this.beanFactory;
+	}
+
 	/**
 	 * Creates a repository of the repository base class defined in the given {@link RepositoryInformation} using
 	 * reflection.