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Easy Redis Java client and Real-Time Data Platform. Valkey compatible. Sync/Async/RxJava3/Reactive API. Client side caching. Over 50 Redis based Java objects and services: JCache API, Apache Tomcat, Hibernate, Spring, Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Scheduler, RPC
/*
* Copyright (c) 2016-2023 VMware Inc. or its affiliates, All Rights Reserved.
*
* 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 reactor.core.publisher;
import org.reactivestreams.Publisher;
import reactor.core.Scannable;
import reactor.util.annotation.Nullable;
/**
*
* {@link SourceProducer} is a {@link Publisher} that is {@link Scannable} for the
* purpose of being tied back to a chain of operators. By itself it doesn't allow
* walking the hierarchy of operators, as they can only be tied from downstream to upstream
* by referencing their sources.
*
* @param output operator produced type
*
* @author Simon Baslé
*/
interface SourceProducer extends Scannable, Publisher {
@Override
@Nullable
default Object scanUnsafe(Attr key) {
if (key == Attr.PARENT) return null;
if (key == Attr.ACTUAL) return null;
if (key == InternalProducerAttr.INSTANCE) return true;
return null;
}
@Override
default String stepName() {
return "source(" + getClass().getSimpleName() + ")";
}
}
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