Uses of Class
org.objectweb.howl.log.LogBuffer

Packages that use LogBuffer

Package	Description
org.objectweb.howl.log	Core functionality for any log file implementation.

Uses of LogBuffer in org.objectweb.howl.log

Subclasses of LogBuffer in org.objectweb.howl.log

Modifier and Type	Class	Description
(package private) class	BlockLogBuffer	An implementation of LogBuffer that provides features necessary for a reliable Transaction Monitor journal.
(package private) class	BlockLogBufferSink	An implementation of BlockLogBuffer that does *not* perform IO.

Fields in org.objectweb.howl.log declared as LogBuffer

Modifier and Type	Field	Description
(package private) LogBuffer	LogRecord.buffer	used by Logger.get() and Logger.getNext() to retrieve records from the journal.
private LogBuffer[]	LogBufferManager.bufferList	array of all LogBuffer objects allocated.
private LogBuffer	LogBufferManager.fillBuffer	The LogBuffer that is currently being filled.
private LogBuffer[]	LogBufferManager.forceQueue	queue of buffers waiting to be written.
private LogBuffer[]	LogBufferManager.freeBuffer	array of LogBuffer objects available for filling

Methods in org.objectweb.howl.log that return LogBuffer

Modifier and Type	Method	Description
private LogBuffer	LogBufferManager.getFillBuffer()	returns a LogBuffer to be filled.
(package private) LogBuffer	LogBufferManager.getLogBuffer(int index)	return a new instance of LogBuffer.
(package private) LogBuffer	BlockLogBuffer.init(int bsn, LogFileManager lfm)	initialize members for buffer reuse.
(package private) abstract LogBuffer	LogBuffer.init(int bsn, LogFileManager lfm)	initialize members for LogBuffer implementation class for reuse.
(package private) LogBuffer	BlockLogBuffer.read(LogFile lf, long position)	Reads a block from LogFile lf and validates header and footer information.
(package private) abstract LogBuffer	LogBuffer.read(LogFile lf, long position)	read a block of data from the LogFile object provided in the lf parameter starting at the position specified in the postiion parameter.

Methods in org.objectweb.howl.log with parameters of type LogBuffer

Modifier and Type	Method	Description
(package private) void	LogBufferManager.fqAdd(LogBuffer buffer)	Add a buffer to the forceQueue.
protected LogRecord	LogRecord.get(LogBuffer lb)	protected method to copy next logical record from the LogBuffer specified by the callers lb parameter.
(package private) LogFile	LogFileManager.getLogFileForWrite(LogBuffer lb)	Called by LogBuffer.init() to obtain the LogFile that will be used to write a specific log block.
private LogRecord	LogRecord.getNext(LogBuffer lb)	helper for get().
(package private) int	LogFileManager.read(LogBuffer lb, int bsn)	reads a block of data into LogBuffer lb .
private void	LogBufferManager.releaseBuffer(LogBuffer buffer)	decrements count of threads waiting on this buffer.
private void	LogBufferManager.sync(LogBuffer logBuffer)	Waits for logBuffer to be forced to disk.
(package private) void	LogFileManager.validateFileHeader(LogBuffer lb)	Compares values in log file header record with current configuration.
(package private) void	LogFile.write(LogBuffer lb)	Helper provides access to the FileChannel.write() method for the FileChannel associated with this LogFile.