/**
* Copyright 2016 LinkedIn Corp. 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
*
* 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.
*/
package com.github.ambry.store;
import java.io.IOException;
import java.nio.ByteBuffer;
/**
* Provides a read interface into the underlying storage layer
*/
public interface Read {
/**
* Read from the underlying store(file) into the buffer starting at the given position in the store. Reads
* exactly {@code buffer.remaining()} amount of data or throws an exception.
* @param buffer The buffer into which the read needs to write to
* @param position The position to start the read from
* @throws IOException
*/
void readInto(ByteBuffer buffer, long position) throws IOException;
}