Automatically enable transaction management for Neo4j

This commit makes sure that `@EnableTransactionManagement` is
auto-configured with Neo4j. It actually reuses what was done in #8434,
making sure that the `Neo4jDataAutoConfiguration` is ordered properly.

Closes gh-8587

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/data/neo4j/Neo4jDataAutoConfiguration.java

@@ -23,14 +23,12 @@ import org.neo4j.ogm.session.event.EventListener;
 
 import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.boot.autoconfigure.AutoConfigurationPackages;
-import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
 import org.springframework.boot.autoconfigure.domain.EntityScanPackages;
-import org.springframework.boot.autoconfigure.transaction.TransactionAutoConfiguration;
 import org.springframework.boot.autoconfigure.transaction.TransactionManagerCustomizers;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.ApplicationContext;
@@ -55,7 +53,6 @@ import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter
  * @since 1.4.0
  */
 @Configuration
-@AutoConfigureAfter(TransactionAutoConfiguration.class)
 @ConditionalOnClass({ SessionFactory.class, PlatformTransactionManager.class })
 @ConditionalOnMissingBean(SessionFactory.class)
 @EnableConfigurationProperties(Neo4jProperties.class)

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/transaction/TransactionAutoConfiguration.java

@@ -25,6 +25,7 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnSingleCandidate;
+import org.springframework.boot.autoconfigure.data.neo4j.Neo4jDataAutoConfiguration;
 import org.springframework.boot.autoconfigure.jdbc.DataSourceTransactionManagerAutoConfiguration;
 import org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration;
 import org.springframework.boot.autoconfigure.transaction.jta.JtaAutoConfiguration;
@@ -46,7 +47,8 @@ import org.springframework.transaction.support.TransactionTemplate;
 @Configuration
 @ConditionalOnClass(PlatformTransactionManager.class)
 @AutoConfigureAfter({ JtaAutoConfiguration.class, HibernateJpaAutoConfiguration.class,
-		DataSourceTransactionManagerAutoConfiguration.class })
+		DataSourceTransactionManagerAutoConfiguration.class,
+		Neo4jDataAutoConfiguration.class })
 @EnableConfigurationProperties(TransactionProperties.class)
 public class TransactionAutoConfiguration {
 

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/data/neo4j/Neo4jDataAutoConfigurationTests.java

@@ -155,7 +155,7 @@ public class Neo4jDataAutoConfigurationTests {
 			ctx.register(config);
 		}
 		ctx.register(PropertyPlaceholderAutoConfiguration.class,
-				TransactionAutoConfiguration.class, Neo4jDataAutoConfiguration.class);
+				Neo4jDataAutoConfiguration.class, TransactionAutoConfiguration.class);
 		ctx.refresh();
 		this.context = ctx;
 	}