org.apache.flink.runtime.io.disk.iomanager.BufferFileReader Maven / Gradle / Ivy
/*
* 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.flink.runtime.io.disk.iomanager;
import org.apache.flink.runtime.io.network.buffer.Buffer;
import java.io.IOException;
public interface BufferFileReader extends FileIOChannel {
/**
* Read data into the buffer, assume each buffer has a 8-bytes header ahead of its data.
*/
void readInto(Buffer buffer) throws IOException;
/**
* Read data into the buffer, assume without header.
*/
void readInto(Buffer buffer, long length) throws IOException;
void seekToPosition(long position) throws IOException;
boolean hasReachedEndOfFile();
}