FairCom.CtreeDb.Types

Class SESSION_PARAM

java.lang.Object

FairCom.CtreeDb.Types.SESSION_PARAM

public final class SESSION_PARAM
extends java.lang.Object

Session parameter values used on a CTSession.SetParam(int, int) call

Field Summary

Fields

Modifier and Type	Field and Description
static int	CT_BUFS the number of index file buffers, minimum 3.
static int	CT_DBUFS the number of buffers for data files I/O
static int	CT_FILS initial block of file structures.
static int	CT_SECT the number of node sectors.
static int	CT_USERPROF is the user profile mask, and accepts the following values: SESSION_PARAM.USERPRF_CLRCHK SESSION_PARAM.USERPRF_LOCLIB SESSION_PARAM.USERPRF_NDATA SESSION_PARAM.USERPRF_NTKEY SESSION_PARAM.USERPRF_PTHTMP SESSION_PARAM.USERPRF_SAVENV
static int	USERPRF_CLRCHK instructs single-user TRANPROC applications to remove S*.FCS and L*.FCS files upon a successful application shutdown.
static int	USERPRF_LOCLIB specifies this instance of c-tree Plus is to be directed to a local database.
static int	USERPRF_NDATA enable the manual mode of UNIFRMAT support.
static int	USERPRF_NTKEY disables the automatic TransformKey() feature.
static int	USERPRF_PTHTMP changes GetCtTempFileName() from its default operation of returning a temporary file name to specifying a directory name where temporary files are to reside.
static int	USERPRF_SAVENV enable the automatic SAVENV feature.

Constructor Summary

Constructors

Constructor and Description
SESSION_PARAM()

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

CT_BUFS

public static final int CT_BUFS

the number of index file buffers, minimum 3.

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Constant Field Values

CT_FILS

public static final int CT_FILS

initial block of file structures.

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Constant Field Values

CT_SECT

public static final int CT_SECT

the number of node sectors. Minimum of one required. sect multiplied by 128 equals the index node size.

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Constant Field Values

CT_DBUFS

public static final int CT_DBUFS

the number of buffers for data files I/O

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Constant Field Values

CT_USERPROF

public static final int CT_USERPROF

is the user profile mask, and accepts the following values: SESSION_PARAM.USERPRF_CLRCHK SESSION_PARAM.USERPRF_LOCLIB SESSION_PARAM.USERPRF_NDATA SESSION_PARAM.USERPRF_NTKEY SESSION_PARAM.USERPRF_PTHTMP SESSION_PARAM.USERPRF_SAVENV

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Constant Field Values

USERPRF_CLRCHK

public static final int USERPRF_CLRCHK

instructs single-user TRANPROC applications to remove S*.FCS and L*.FCS files upon a successful application shutdown. The c-tree Plus checkpoint code determines at the time of a final checkpoint if there are no pending transactions or file opens, and if this user profile bit has been turned on. If so, the S*.FCS and L*.FCS files are deleted. However, if the application is causing log files to be saved (very unusual for a single-user application), then the files are not cleared. The USERPRF_CLRCHK option is off by default.

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Constant Field Values

USERPRF_LOCLIB

public static final int USERPRF_LOCLIB

specifies this instance of c-tree Plus is to be directed to a local database. Applicable only to client/server when using "Local Library Support".

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Constant Field Values

USERPRF_NDATA

public static final int USERPRF_NDATA

enable the manual mode of UNIFRMAT support. Enabling the manual record transformation mode would only be desirable when performing custom record level byte flipping or the record structures contain no numeric data (i.e., LONG, FLOAT, . . .). A side benefit of enabling this manual mode is the virtual elimination of Server DODA requests, thereby reducing network traffic by one function call per file open.

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Constant Field Values

USERPRF_NTKEY

public static final int USERPRF_NTKEY

disables the automatic TransformKey() feature. See the Trans function description for more information.

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Constant Field Values

USERPRF_PTHTMP

public static final int USERPRF_PTHTMP

changes GetCtTempFileName() from its default operation of returning a temporary file name to specifying a directory name where temporary files are to reside.

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Constant Field Values

USERPRF_SAVENV

public static final int USERPRF_SAVENV

enable the automatic SAVENV feature. See the Begin() function description for more information.

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Constant Field Values

Constructor Detail

SESSION_PARAM

public SESSION_PARAM()