com.google.appengine.api.files
Interface RecordWriteChannel

All Superinterfaces:

java.nio.channels.Channel, java.io.Closeable, java.nio.channels.WritableByteChannel

public interface RecordWriteChannel
extends java.nio.channels.WritableByteChannel

A WritableByteChannel for writing records to an FileWriteChannel.

The format of these records is defined by the leveldb log format: http://leveldb.googlecode.com/svn/trunk/doc/log_format.txt

An instance of RecordWriteChannel may be obtained from the method: FileService.openRecordWriteChannel(AppEngineFile, boolean).

Method Summary

void	closeFinally() Closes the file.
int	write(java.nio.ByteBuffer src, java.lang.String sequenceKey) Writes the data out to FileWriteChannel.

Methods inherited from interface java.nio.channels.WritableByteChannel

write

Methods inherited from interface java.nio.channels.Channel

close, isOpen

Method Detail

write

int write(java.nio.ByteBuffer src,
          java.lang.String sequenceKey)
          throws java.io.IOException

Writes the data out to FileWriteChannel.

Throws:

java.io.IOException

See Also:

FileWriteChannel.write(ByteBuffer, String)

closeFinally

void closeFinally()
                  throws java.lang.IllegalStateException,
                         java.io.IOException

Closes the file.

Throws:

java.lang.IllegalStateException

java.io.IOException

See Also:

FileWriteChannel.closeFinally()