spring-data-jpa Meta 源码
spring-data-jpa Meta 代码
文件路径：/spring-data-jpa/src/main/java/org/springframework/data/jpa/repository/Meta.java
/*
* Copyright 2014-2022 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.jpa.repository;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Annotation to assign metadata to repository operations.
*
* @author Greg Turnquist
* @since 3.0
* @see org.springframework.data.jpa.repository.query.Meta
*/
@Retention(RetentionPolicy.RUNTIME)
@Target({ ElementType.METHOD, ElementType.ANNOTATION_TYPE })
@Documented
public @interface Meta {
/**
* Add a comment to the query.
*
* @return empty {@link String} by default.
*/
String comment() default "";
}
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