package com.sleepycat.je.log;
import java.io.IOException;
import java.nio.ByteBuffer;
import com.sleepycat.je.DatabaseException;
import de.ovgu.cide.jakutil.*;
/**
* A class that implements LogSource can return portions of the log.
*/
interface LogSource {
/**
* We're done with this log source.
*/
void release() throws DatabaseException ;
/**
* Fill the destination byte array with bytes. The offset indicates the
* absolute log file position.
*/
ByteBuffer getBytes( long fileOffset) throws IOException ;
/**
* Fill the destination byte array with the requested number of bytes. The
* offset indicates the absolute position in the log file.
*/
ByteBuffer getBytes( long fileOffset, int numBytes) throws IOException ;
}