spring-kafka ListenerContainerRegistry 源码
spring-kafka ListenerContainerRegistry 代码
文件路径：/spring-kafka/src/main/java/org/springframework/kafka/listener/ListenerContainerRegistry.java
/*
* Copyright 2021-2022 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.kafka.listener;
import java.util.Collection;
import java.util.Set;
import org.springframework.lang.Nullable;
/**
* A registry for listener containers.
*
* @author Gary Russell
* @since 2.7
*
*/
public interface ListenerContainerRegistry {
/**
* Return the {@link MessageListenerContainer} with the specified id or
* {@code null} if no such container exists.
* @param id the id of the container
* @return the container or {@code null} if no container with that id exists
* @see org.springframework.kafka.config.KafkaListenerEndpoint#getId()
* @see #getListenerContainerIds()
*/
@Nullable
MessageListenerContainer getListenerContainer(String id);
/**
* Return the {@link MessageListenerContainer} with the specified id or {@code null}
* if no such container exists. Returns containers that are not registered with the
* registry, but exist in the application context.
* @param id the id of the container
* @return the container or {@code null} if no container with that id exists
* @see #getListenerContainerIds()
*/
@Nullable
MessageListenerContainer getUnregisteredListenerContainer(String id);
/**
* Return the ids of the managed {@link MessageListenerContainer} instance(s).
* @return the ids.
* @see #getListenerContainer(String)
*/
Set<String> getListenerContainerIds();
/**
* Return the managed {@link MessageListenerContainer} instance(s).
* @return the managed {@link MessageListenerContainer} instance(s).
* @see #getAllListenerContainers()
*/
Collection<MessageListenerContainer> getListenerContainers();
/**
* Return all {@link MessageListenerContainer} instances including those managed by
* this registry and those declared as beans in the application context.
* Prototype-scoped containers will be included. Lazy beans that have not yet been
* created will not be initialized by a call to this method.
* @return the {@link MessageListenerContainer} instance(s).
* @see #getListenerContainers()
*/
Collection<MessageListenerContainer> getAllListenerContainers();
}
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