File	Doc	Category	Size	Date	Package
LogExtent.java	API Doc	Glassfish v2 API	5977	Wed Jun 13 23:03:46 BST 2007	com.sun.jts.CosTransactions

LogExtent

• java.lang.Object

Fields Summary
static final int	ACCESSTYPE_UNKNOWN Type of last access is unknown (forces fseek to required cursor pos'n)
static final int	ACCESSTYPE_READ Last access was for reading
static final int	ACCESSTYPE_WRITE Last access was for writing
static final int	EXTENT_RADIX The radix used to convert extent numbers to strings.
static final int	MAX_NO_OF_EXTENTS The maximum number of extent files that can be allocated to a single log at any one time. Extent names are made up of .nnn Hence this value is restricted by the .nnn extension (3 characters only, to support the FAT file system.
LogExtent	blockValid This value is used to validate the LogExtent object.
int	extentNumber The extent number.
LogFileHandle	fileHandle The file handle for the log extent file.
File	file The file for the log extent file.
boolean	writtenSinceLastForce Indicates whether any information has been written since the last force.
int	cursorPosition The cursor position in the log extent.
int	lastAccess The last type of access to the extent.

Constructors Summary
LogExtent(int extent, LogFileHandle extentFH, File extentFile) LogExtent constructor param extent The number of the extent. param extentFH The handle of the extent file. return see extentNumber = extent; fileHandle = extentFH; file = extentFile;

Methods Summary
public void	doFinalize() Default LogExtent destructor. param return see try { fileHandle.finalize(); } catch( Throwable e ) {}; blockValid = null; file = null;
static final int	modExtent(int ext) Modulates the extent number using the maximum extent number. param ext The extent number return The modulated extent number. see return (ext % MAX_NO_OF_EXTENTS);