spring-data-redis EnableRedisRepositories 源码

spring-data-redis EnableRedisRepositories 代码

文件路径：/src/main/java/org/springframework/data/redis/repository/configuration/EnableRedisRepositories.java

/*
 * Copyright 2015-2022 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.redis.repository.configuration;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import org.springframework.beans.factory.FactoryBean;
import org.springframework.context.annotation.ComponentScan.Filter;
import org.springframework.context.annotation.Import;
import org.springframework.data.keyvalue.core.KeyValueOperations;
import org.springframework.data.keyvalue.repository.config.QueryCreatorType;
import org.springframework.data.redis.core.RedisKeyValueAdapter.EnableKeyspaceEvents;
import org.springframework.data.redis.core.RedisKeyValueAdapter.ShadowCopy;
import org.springframework.data.redis.core.RedisOperations;
import org.springframework.data.redis.core.convert.KeyspaceConfiguration;
import org.springframework.data.redis.core.index.IndexConfiguration;
import org.springframework.data.redis.listener.KeyExpirationEventMessageListener;
import org.springframework.data.redis.repository.query.RedisQueryCreator;
import org.springframework.data.redis.repository.support.RedisRepositoryFactoryBean;
import org.springframework.data.repository.config.DefaultRepositoryBaseClass;
import org.springframework.data.repository.query.QueryLookupStrategy;
import org.springframework.data.repository.query.QueryLookupStrategy.Key;

/**
 * Annotation to activate Redis repositories. If no base package is configured through either {@link #value()},
 * {@link #basePackages()} or {@link #basePackageClasses()} it will trigger scanning of the package of annotated class.
 *
 * @author Christoph Strobl
 * @author Mark Paluch
 * @since 1.7
 */
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Inherited
@Import(RedisRepositoriesRegistrar.class)
@QueryCreatorType(RedisQueryCreator.class)
public @interface EnableRedisRepositories {

	/**
	 * Alias for the {@link #basePackages()} attribute. Allows for more concise annotation declarations e.g.:
	 * {@code @EnableRedisRepositories("org.my.pkg")} instead of
	 * {@code @EnableRedisRepositories(basePackages="org.my.pkg")}.
	 */
	String[] value() default {};

	/**
	 * Base packages to scan for annotated components. {@link #value()} is an alias for (and mutually exclusive with) this
	 * attribute. Use {@link #basePackageClasses()} for a type-safe alternative to String-based package names.
	 */
	String[] basePackages() default {};

	/**
	 * Type-safe alternative to {@link #basePackages()} for specifying the packages to scan for annotated components. The
	 * package of each class specified will be scanned. Consider creating a special no-op marker class or interface in
	 * each package that serves no purpose other than being referenced by this attribute.
	 */
	Class<?>[] basePackageClasses() default {};

	/**
	 * Specifies which types are not eligible for component scanning.
	 */
	Filter[] excludeFilters() default {};

	/**
	 * Specifies which types are eligible for component scanning. Further narrows the set of candidate components from
	 * everything in {@link #basePackages()} to everything in the base packages that matches the given filter or filters.
	 */
	Filter[] includeFilters() default {};

	/**
	 * Returns the postfix to be used when looking up custom repository implementations. Defaults to {@literal Impl}. So
	 * for a repository named {@code PersonRepository} the corresponding implementation class will be looked up scanning
	 * for {@code PersonRepositoryImpl}.
	 *
	 * @return
	 */
	String repositoryImplementationPostfix() default "Impl";

	/**
	 * Configures the location of where to find the Spring Data named queries properties file.
	 *
	 * @return
	 */
	String namedQueriesLocation() default "";

	/**
	 * Returns the key of the {@link QueryLookupStrategy} to be used for lookup queries for query methods. Defaults to
	 * {@link Key#CREATE_IF_NOT_FOUND}.
	 *
	 * @return
	 */
	Key queryLookupStrategy() default Key.CREATE_IF_NOT_FOUND;

	/**
	 * Returns the {@link FactoryBean} class to be used for each repository instance. Defaults to
	 * {@link RedisRepositoryFactoryBean}.
	 *
	 * @return
	 */
	Class<?> repositoryFactoryBeanClass() default RedisRepositoryFactoryBean.class;

	/**
	 * Configure the repository base class to be used to create repository proxies for this particular configuration.
	 *
	 * @return
	 */
	Class<?> repositoryBaseClass() default DefaultRepositoryBaseClass.class;

	/**
	 * Configures the name of the {@link KeyValueOperations} bean to be used with the repositories detected.
	 *
	 * @return
	 */
	String keyValueTemplateRef() default "redisKeyValueTemplate";

	/**
	 * Configures whether nested repository-interfaces (e.g. defined as inner classes) should be discovered by the
	 * repositories infrastructure.
	 */
	boolean considerNestedRepositories() default false;

	/**
	 * Configures the bean name of the {@link RedisOperations} to be used. Defaulted to {@literal redisTemplate}.
	 *
	 * @return
	 */
	String redisTemplateRef() default "redisTemplate";

	/**
	 * Set up index patterns using simple configuration class.
	 *
	 * @return
	 */
	Class<? extends IndexConfiguration> indexConfiguration() default IndexConfiguration.class;

	/**
	 * Set up keyspaces for specific types.
	 *
	 * @return
	 */
	Class<? extends KeyspaceConfiguration> keyspaceConfiguration() default KeyspaceConfiguration.class;

	/**
	 * Configure usage of {@link KeyExpirationEventMessageListener}.
	 *
	 * @return
	 * @since 1.8
	 */
	EnableKeyspaceEvents enableKeyspaceEvents() default EnableKeyspaceEvents.OFF;

	/**
	 * Configure the name of the {@link org.springframework.data.redis.listener.RedisMessageListenerContainer} bean to be
	 * used for keyspace event subscriptions. Defaults to use an anonymous managed instance by
	 * {@link org.springframework.data.redis.core.RedisKeyValueAdapter}.
	 *
	 * @return
	 * @since 2.7.2
	 */
	String messageListenerContainerRef() default "";

	/**
	 * Configuration flag controlling storage of phantom keys (shadow copies) of expiring entities to read them later when
	 * publishing {@link org.springframework.data.redis.core.RedisKeyspaceEvent keyspace events}.
	 *
	 * @return
	 * @since 2.4
	 */
	ShadowCopy shadowCopy() default ShadowCopy.DEFAULT;

	/**
	 * Configure the {@literal notify-keyspace-events} property if not already set. <br />
	 * Use an empty {@link String} to keep (<b>not</b> alter) existing server configuration.
	 *
	 * @return {@literal Ex} by default.
	 * @since 1.8
	 */
	String keyspaceNotificationsConfigParameter() default "Ex";

}

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