Add support for using custom BeanNameGenerator.

Closes: #4756

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/config/EnableMongoRepositories.java

@@ -23,6 +23,7 @@ import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
 import org.springframework.beans.factory.FactoryBean;
+import org.springframework.beans.factory.support.BeanNameGenerator;
 import org.springframework.context.annotation.ComponentScan.Filter;
 import org.springframework.context.annotation.Import;
 import org.springframework.data.mongodb.core.MongoTemplate;
@@ -117,6 +118,13 @@ public @interface EnableMongoRepositories {
 	 */
 	Class<?> repositoryBaseClass() default DefaultRepositoryBaseClass.class;
 
+	/**
+	 * Configure a specific {@link BeanNameGenerator} to be used when creating the repository beans.
+	 * @return the {@link BeanNameGenerator} to be used or the base {@link BeanNameGenerator} interface to indicate context default.
+	 * @since 4.4
+	 */
+	Class<? extends BeanNameGenerator> nameGenerator() default BeanNameGenerator.class;
+
 	/**
 	 * Configures the name of the {@link MongoTemplate} bean to be used with the repositories detected.
 	 *

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/config/EnableReactiveMongoRepositories.java

@@ -24,6 +24,7 @@ import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
 import org.springframework.beans.factory.FactoryBean;
+import org.springframework.beans.factory.support.BeanNameGenerator;
 import org.springframework.context.annotation.ComponentScan.Filter;
 import org.springframework.context.annotation.Import;
 import org.springframework.data.mongodb.core.MongoTemplate;
@@ -119,6 +120,13 @@ public @interface EnableReactiveMongoRepositories {
 	 */
 	Class<?> repositoryBaseClass() default DefaultRepositoryBaseClass.class;
 
+	/**
+	 * Configure a specific {@link BeanNameGenerator} to be used when creating the repository beans.
+	 * @return the {@link BeanNameGenerator} to be used or the base {@link BeanNameGenerator} interface to indicate context default.
+	 * @since 4.4
+	 */
+	Class<? extends BeanNameGenerator> nameGenerator() default BeanNameGenerator.class;
+
 	/**
 	 * Configures the name of the {@link MongoTemplate} bean to be used with the repositories detected.
 	 *

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/config/MongoRepositoriesRegistrarUnitTests.java

@@ -0,0 +1,86 @@
+/*
+ * Copyright 2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.repository.config;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.util.Arrays;
+import java.util.stream.Stream;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.beans.factory.support.BeanDefinitionRegistry;
+import org.springframework.beans.factory.support.DefaultListableBeanFactory;
+import org.springframework.context.annotation.AnnotationBeanNameGenerator;
+import org.springframework.core.env.StandardEnvironment;
+import org.springframework.core.io.DefaultResourceLoader;
+import org.springframework.core.type.AnnotationMetadata;
+import org.springframework.data.mongodb.repository.PersonRepository;
+
+/**
+ * @author Christoph Strobl
+ */
+class MongoRepositoriesRegistrarUnitTests {
+
+	private BeanDefinitionRegistry registry;
+
+	@BeforeEach
+	void setUp() {
+		registry = new DefaultListableBeanFactory();
+	}
+
+	@ParameterizedTest // GH-499, GH-3440
+	@MethodSource(value = { "args" })
+	void configuresRepositoriesCorrectly(AnnotationMetadata metadata, String[] beanNames) {
+
+		MongoRepositoriesRegistrar registrar = new MongoRepositoriesRegistrar();
+		registrar.setResourceLoader(new DefaultResourceLoader());
+		registrar.setEnvironment(new StandardEnvironment());
+		registrar.registerBeanDefinitions(metadata, registry);
+
+		Iterable<String> names = Arrays.asList(registry.getBeanDefinitionNames());
+		assertThat(names).contains(beanNames);
+	}
+
+	static Stream<Arguments> args() {
+		return Stream.of(
+				Arguments.of(AnnotationMetadata.introspect(Config.class),
+						new String[] { "personRepository", "samplePersonRepository", "contactRepository" }),
+				Arguments.of(AnnotationMetadata.introspect(ConfigWithBeanNameGenerator.class),
+						new String[] { "personREPO", "samplePersonREPO", "contactREPO" }));
+	}
+
+	@EnableMongoRepositories(basePackageClasses = PersonRepository.class)
+	private class Config {
+
+	}
+
+	@EnableMongoRepositories(basePackageClasses = PersonRepository.class, nameGenerator = MyBeanNameGenerator.class)
+	private class ConfigWithBeanNameGenerator {
+
+	}
+
+	static class MyBeanNameGenerator extends AnnotationBeanNameGenerator {
+
+		@Override
+		public String generateBeanName(BeanDefinition definition, BeanDefinitionRegistry registry) {
+			return super.generateBeanName(definition, registry).replaceAll("Repository", "REPO");
+		}
+	}
+}

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/config/ReactiveMongoRepositoriesRegistrarUnitTests.java

@@ -0,0 +1,86 @@
+/*
+ * Copyright 2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.repository.config;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.util.Arrays;
+import java.util.stream.Stream;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.beans.factory.support.BeanDefinitionRegistry;
+import org.springframework.beans.factory.support.DefaultListableBeanFactory;
+import org.springframework.context.annotation.AnnotationBeanNameGenerator;
+import org.springframework.core.env.StandardEnvironment;
+import org.springframework.core.io.DefaultResourceLoader;
+import org.springframework.core.type.AnnotationMetadata;
+import org.springframework.data.mongodb.repository.PersonRepository;
+
+/**
+ * @author Christoph Strobl
+ */
+class ReactiveMongoRepositoriesRegistrarUnitTests {
+
+	private BeanDefinitionRegistry registry;
+
+	@BeforeEach
+	void setUp() {
+		registry = new DefaultListableBeanFactory();
+	}
+
+	@ParameterizedTest // GH-499, GH-3440
+	@MethodSource(value = { "args" })
+	void configuresRepositoriesCorrectly(AnnotationMetadata metadata, String[] beanNames) {
+
+		ReactiveMongoRepositoriesRegistrar registrar = new ReactiveMongoRepositoriesRegistrar();
+		registrar.setResourceLoader(new DefaultResourceLoader());
+		registrar.setEnvironment(new StandardEnvironment());
+		registrar.registerBeanDefinitions(metadata, registry);
+
+		Iterable<String> names = Arrays.asList(registry.getBeanDefinitionNames());
+		assertThat(names).contains(beanNames);
+	}
+
+	static Stream<Arguments> args() {
+		return Stream.of(
+				Arguments.of(AnnotationMetadata.introspect(Config.class), new String[] { "reactivePersonRepository" }),
+				Arguments.of(AnnotationMetadata.introspect(ConfigWithBeanNameGenerator.class),
+						new String[] { "reactivePersonREPO" }));
+	}
+
+	@EnableReactiveMongoRepositories(basePackageClasses = PersonRepository.class)
+	private class Config {
+
+	}
+
+	@EnableReactiveMongoRepositories(basePackageClasses = PersonRepository.class,
+			nameGenerator = MyBeanNameGenerator.class)
+	private class ConfigWithBeanNameGenerator {
+
+	}
+
+	static class MyBeanNameGenerator extends AnnotationBeanNameGenerator {
+
+		@Override
+		public String generateBeanName(BeanDefinition definition, BeanDefinitionRegistry registry) {
+			return super.generateBeanName(definition, registry).replaceAll("Repository", "REPO");
+		}
+	}
+}