Windows Registry

Some GIS kernel parameters influencing on performance and specifying default values are defined in the Windows registry. The HKEY_CURRENT_USER\SOFTWARE\Objectland Group\ObjectLand\X.Y\Kernel key contains parameters of GIS kernel (the key for some of them is HKEY_CURRENT_USER\SOFTWARE\Objectland Group\ObjectLand\X.Y\ORBase) and specifies parameters for the current user.

If this key has no a particular named parameter, the HKEY_LOCAL_MACHINE\SOFTWARE\Objectland Group\ObjectLand\X.Y\Kernel key will be used for this parameter (the key for some of them is HKEY_LOCAL_MACHINE\SOFTWARE\Objectland Group\ObjectLand\X.Y\ORBase). It specifies parameters for all users. The table below describes control parameters, range of possible values, initial values and names of the GDBEngine object methods/properties providing getting/setting of parameters.

Note. The string 'Х.Y' corresponds to the first two numbers in the version number of GIS ObjectLand, for example '2.6'.

Name	Purpose	Possible values	Initial values	Method/Property
AssPageSize	default ASS file page size of the shared library in bytes (*)	an integer from 512 to 32768.	1024	GDBEngine::GetDefaultPageSize GDBEngine::SetDefaultPageSize with the gdbFileLibraryAss argument
CacheSize	default cache size of GDB file pages in bytes (*)	an integer from 10240 to 5120000.	163840	GDBEngine::GetDefaultCacheSize GDBEngine::SetDefaultCacheSize
DatPageSize	default DAT file page size of the shared library in bytes (*)	an integer from 512 to 32768.	2048	GDBEngine::GetDefaultPageSize GDBEngine::SetDefaultPageSize with the gdbFileLibraryDat argument
DefaultFont	default font	a string with description of the default font (see comment to the GDBEngine::DefaultFont method)	Arial Cyr	GDBEngine::DefaultFont
GDBChgPath	default directory of GDB change file	an empty string or a string with a valid path	an empty string	GDBEngine::GetDefaultChgFilePath GDBEngine::SetDefaultChgFilePath
GDBInfoTimeOut	default timeout of request about GDB sessions (in seconds)	an integer >= 0	3	GDBEngine::GetDefaultInfoTimeOut GDBEngine::SetDefaultInfoTimeOut
GDBLckPath	default directory of GDB lock file	an empty string or a string with a valid path	an empty string	GDBEngine::GetDefaultLckFilePath GDBEngine::SetDefaultLckFilePath
GDBLockTimeOut	default timeout of the GDB lock (in seconds)	an integer >= 0	20	GDBEngine::GetDefaultLockTimeOut GDBEngine::SetDefaultLockTimeOut
SharedLibraryChgPath	default directory of shared library change file	an empty string or a string with a valid path	an empty string	GDBEngine::GetDefaultSharedLibraryChgFilePath GDBEngine::SetDefaultSharedLibraryChgFilePath
SharedLibraryInfoTimeOut	default timeout of request about shared library sessions (in seconds)	an integer >= 0	3	GDBEngine::GetDefaultSharedLibraryInfoTimeOut GDBEngine::SetDefaultSharedLibraryInfoTimeOut
SharedLibraryLockTimeOut	default timeout of the shared library lock (in seconds)	an integer >= 0	20	GDBEngine::GetDefaultSharedLibraryLockTimeOut GDBEngine::SetDefaultSharedLibraryLockTimeOut
SharedLibraryOpenMode	default open mode of the shared library	an integer (see comment to the GDBEngine::OpenSharedLibrary method)	0x5500	GDBEngine::GetDefaultSharedLibraryOpenMode GDBEngine::SetDefaultSharedLibraryOpenMode
SharedLibraryPath	default directory of the shared style library	an empty string or a string with a valid path	an empty string	GDBEngine::GetSharedLibraryPath GDBEngine::SetSharedLibraryPath
LckPath	default directory of shared library lock file (*)	an empty string or a string with a valid path	an empty string	GDBEngine::GetDefaultSharedLibraryLckFilePath GDBEngine::SetDefaultSharedLibraryLckFilePath
MapsAssPageSize	default Page size of ASS file for map database in bytes	an integer from 512 to 32768.	2048	GDBEngine::GetDefaultPageSize GDBEngine::SetDefaultPageSize with the gdbFileMapsAss argument
MapsDatPageSize	default Page size of DAT file for map database in bytes	an integer from 512 to 32768.	8192	GDBEngine::GetDefaultPageSize GDBEngine::SetDefaultPageSize with the gdbFileMapsDat argument
MasterAssPageSize	default Page size of ASS file for definition database in bytes	an integer from 512 to 32768.	512	GDBEngine::GetDefaultPageSize GDBEngine::SetDefaultPageSize with the gdbFileMasterAss argument
MasterDatPageSize	default Page size of DAT file for definition database in bytes	an integer from 10240 to 204800.	4096	GDBEngine::GetDefaultPageSize GDBEngine::SetDefaultPageSize with the gdbFileMasterDat argument
TablesAssPageSize	default Page size of ASS file for table database in bytes	an integer from512 to 32768.	2048	GDBEngine::GetDefaultPageSize GDBEngine::SetDefaultPageSize with the gdbFileTablesAss argument
TablesDatPageSize	default Page size of DAT file for table database in bytes	an integer from 512 to 32768.	4096	GDBEngine::GetDefaultPageSize GDBEngine::SetDefaultPageSize with the gdbFileTablesDat argument
Version	GIS kernel version	string - 'X.Y' (**)	X.Y (**)	GDBEngine::Version
WrkPath	default directory of GDB/shared library work files (*)	an empty string or a string with a valid path	empty string	GDBEngine::GetDefaultWrkFilePath GDBEngine::SetDefaultWrkFilePath

* - a key for this parameter is HKEY_CURRENT_USER\SOFTWARE\Objectland Group\ObjectLand\X.Y\ORBase.

** - The string 'Х.Y' corresponds to the first two numbers in the version number of GIS ObjectLand, for example '2.6'.