From d3c2cce6ca5dad3c421546774470bf0e2d3935e2 Mon Sep 17 00:00:00 2001
From: Oliver Gierke <info@olivergierke.de>
Date: Thu, 29 Sep 2011 18:51:41 +0200
Subject: [PATCH] DATACMNS-82 - Default referenced transaction manager to
 transactionManager.

Setting a default transaction manager bean name increases performance of transaction interception as we can lookup the PlatformTransactionManager by name rather than by type.
---
 .../config/AbstractRepositoryConfigDefinitionParser.java | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/spring-data-commons-core/src/main/java/org/springframework/data/repository/config/AbstractRepositoryConfigDefinitionParser.java b/spring-data-commons-core/src/main/java/org/springframework/data/repository/config/AbstractRepositoryConfigDefinitionParser.java
index 817f8f7d9..8db8d5e1c 100644
--- a/spring-data-commons-core/src/main/java/org/springframework/data/repository/config/AbstractRepositoryConfigDefinitionParser.java
+++ b/spring-data-commons-core/src/main/java/org/springframework/data/repository/config/AbstractRepositoryConfigDefinitionParser.java
@@ -62,6 +62,7 @@ public abstract class AbstractRepositoryConfigDefinitionParser<S extends GlobalR
 	private static final Log LOG = LogFactory.getLog(AbstractRepositoryConfigDefinitionParser.class);
 
 	private static final String REPOSITORY_INTERFACE_POST_PROCESSOR = "org.springframework.data.repository.core.support.RepositoryInterfaceAwareBeanPostProcessor";
+	private static final String DEFAULT_TRANSACTION_MANAGER_BEAN_NAME = "transactionManager"; 
 
 	/*
 			 * (non-Javadoc)
@@ -180,11 +181,9 @@ public abstract class AbstractRepositoryConfigDefinitionParser<S extends GlobalR
 			builder.addPropertyValue("namedQueries",
 					new NamedQueriesBeanDefinitionParser(context.getNamedQueriesLocation()).parse(context.getSource(), parser));
 
-			String transactionManagerRef = context.getTransactionManagerRef();
-
-			if (StringUtils.hasText(transactionManagerRef)) {
-				builder.addPropertyValue("transactionManager", transactionManagerRef);
-			}
+			String transactionManagerRef = StringUtils.hasText(context.getTransactionManagerRef()) ? context
+					.getTransactionManagerRef() : DEFAULT_TRANSACTION_MANAGER_BEAN_NAME;
+			builder.addPropertyValue("transactionManager", transactionManagerRef);
 
 			String customImplementationBeanName = registerCustomImplementation(context, parser, beanSource);