kafka StateStoreNode 源码
kafka StateStoreNode 代码
文件路径：/streams/src/main/java/org/apache/kafka/streams/kstream/internals/graph/StateStoreNode.java
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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
*
* http://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.apache.kafka.streams.kstream.internals.graph;
import org.apache.kafka.streams.processor.StateStore;
import org.apache.kafka.streams.processor.internals.InternalTopologyBuilder;
import org.apache.kafka.streams.state.StoreBuilder;
public class StateStoreNode<S extends StateStore> extends GraphNode {
protected final StoreBuilder<S> storeBuilder;
public StateStoreNode(final StoreBuilder<S> storeBuilder) {
super(storeBuilder.name());
this.storeBuilder = storeBuilder;
}
@Override
public void writeToTopology(final InternalTopologyBuilder topologyBuilder) {
topologyBuilder.addStateStore(storeBuilder);
}
@Override
public String toString() {
return "StateStoreNode{" +
" name='" + storeBuilder.name() + '\'' +
", logConfig=" + storeBuilder.logConfig() +
", loggingEnabled='" + storeBuilder.loggingEnabled() + '\'' +
"} ";
}
}
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