com.sleepycat.je.log
Class FileSource

java.lang.Object
  com.sleepycat.je.log.FileSource

All Implemented Interfaces:

LogSource

Direct Known Subclasses:

FileHandleSource

 class FileSource
extends java.lang.Object
implements LogSource

FileSource is used as a channel to a log file when faulting in objects from the log.

Constructor Summary

FileSource(java.io.RandomAccessFile file, int readBufferSize, FileManager fileManager, long fileNum)

Method Summary

java.nio.ByteBuffer	getBytes(long fileOffset) Fill the destination byte array with bytes.
java.nio.ByteBuffer	getBytes(long fileOffset, int numBytes) Fill the destination byte array with the requested number of bytes.
void	release() We're done with this log source.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FileSource

FileSource(java.io.RandomAccessFile file,
           int readBufferSize,
           FileManager fileManager,
           long fileNum)

Method Detail

release

public void release()
             throws DatabaseException

Description copied from interface: LogSource

We're done with this log source.

Specified by:

release in interface LogSource

Throws:

DatabaseException

See Also:

LogSource.release()

getBytes

public java.nio.ByteBuffer getBytes(long fileOffset)
                             throws DatabaseException,
                                    java.io.IOException

Description copied from interface: LogSource

Fill the destination byte array with bytes. The offset indicates the absolute log file position.

Specified by:

getBytes in interface LogSource

Throws:

DatabaseException

java.io.IOException

See Also:

LogSource.getBytes(long)

getBytes

public java.nio.ByteBuffer getBytes(long fileOffset,
                                    int numBytes)
                             throws DatabaseException,
                                    java.io.IOException

Description copied from interface: LogSource

Fill the destination byte array with the requested number of bytes. The offset indicates the absolute position in the log file.

Specified by:

getBytes in interface LogSource

Throws:

DatabaseException

java.io.IOException

See Also:

LogSource.getBytes(long)