spring-data-elasticsearch ReactiveBeforeConvertCallback 源码
spring-data-elasticsearch ReactiveBeforeConvertCallback 代码
文件路径：/src/main/java/org/springframework/data/elasticsearch/core/event/ReactiveBeforeConvertCallback.java
/*
* Copyright 2020-2022 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.elasticsearch.core.event;
import org.reactivestreams.Publisher;
import org.springframework.data.elasticsearch.core.mapping.IndexCoordinates;
import org.springframework.data.mapping.callback.EntityCallback;
/**
* Callback being invoked before a domain object is converted to be persisted.
*
* @author Peter-Josef Meisch
* @author Roman Puchkovskiy
* @since 4.0
*/
@FunctionalInterface
public interface ReactiveBeforeConvertCallback<T> extends EntityCallback<T> {
/**
* Callback method that will be invoked before an entity is persisted. Can return the same or a different instance of
* the domain entity class.
*
* @param entity the entity being converted
* @param index must not be {@literal null}.
* @return the entity to be converted
*/
Publisher<T> onBeforeConvert(T entity, IndexCoordinates index);
}
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