DATACMNS-1591 - @Primary is now considered on repository interfaces.

We now elevate the primary annotation from the scanned repository bean definition to the one created for the repository factory. This previously got lost as the former is hidden behind the RepositoryConfiguration interface that previously didn't expose the primary nature of the underlying bean definition.

Original pull request: #410.

src/main/java/org/springframework/data/repository/config/DefaultRepositoryConfiguration.java

@@ -205,4 +205,13 @@ public class DefaultRepositoryConfiguration<T extends RepositoryConfigurationSou
 
 		return toImplementationDetectionConfiguration(factory).forRepositoryConfiguration(this);
 	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.repository.config.RepositoryConfiguration#isPrimary()
+	 */
+	@Override
+	public boolean isPrimary() {
+		return definition.isPrimary();
+	}
 }

src/main/java/org/springframework/data/repository/config/RepositoryConfiguration.java

@@ -130,4 +130,11 @@ public interface RepositoryConfiguration<T extends RepositoryConfigurationSource
 	 * @since 2.1
 	 */
 	ImplementationLookupConfiguration toLookupConfiguration(MetadataReaderFactory factory);
+
+	/**
+	 * Returns whether the repository is the primary one for its type.
+	 *
+	 * @return
+	 */
+	boolean isPrimary();
 }

src/main/java/org/springframework/data/repository/config/RepositoryConfigurationDelegate.java

@@ -161,6 +161,8 @@ public class RepositoryConfigurationDelegate {
 			}
 
 			AbstractBeanDefinition beanDefinition = definitionBuilder.getBeanDefinition();
+			beanDefinition.setPrimary(configuration.isPrimary());
+
 			String beanName = configurationSource.generateBeanName(beanDefinition);
 
 			if (LOG.isTraceEnabled()) {