spark WritableByteChannelWrapper 源码
spark WritableByteChannelWrapper 代码
文件路径：/core/src/main/java/org/apache/spark/shuffle/api/WritableByteChannelWrapper.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.spark.shuffle.api;
import java.io.Closeable;
import java.nio.channels.WritableByteChannel;
import org.apache.spark.annotation.Private;
/**
* :: Private ::
* A thin wrapper around a {@link WritableByteChannel}.
* <p>
* This is primarily provided for the local disk shuffle implementation to provide a
* {@link java.nio.channels.FileChannel} that keeps the channel open across partition writes.
*
* @since 3.0.0
*/
@Private
public interface WritableByteChannelWrapper extends Closeable {
/**
* The underlying channel to write bytes into.
*/
WritableByteChannel channel();
}
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