You configure the AcuXDBC local server with a configuration file named acuxdbc.cfg. This configuration file is where you define the location of your COBOL data files and system catalog, file case instructions, and other important program functions.
You can create several different configuration files for different purposes. You can set ACUCOBOL specific configuration variables for the AcuXDBC environment in a configuration file called xdbc_env.cfg, which should also reside in the GENESIS_HOME directory. This file is not required.
Configuration files must reside in your AcuXDBC installation directory, specified by the GENESIS_HOME environment variable. You specify the exact name and path when setting up your DSNs on the client.
In an XDBC Local installation, acuxdbc.cfg is the only configuration file that is required.
For acuxdbc.cfg, you can use configuration variables from several key areas, as shown below. The DICTSOURCE and FILE_PREFIX variables are required. If you installed AcuXDBC in a non-default directory, you must modify the DICTSOURCE and FILE_PREFIX variables in the client configuration file or generate a new configuration file with the genxconf batch or shell script file, which is included in your distribution to make the generation of configuration files easier. This utility takes the format:
genxconf [-d directory] [-c catalog] [-p prefix] [-n config_name]
|-d||Specifies the directory name to use for the GENESIS_HOME environment variable|
|-c||Specifies an optional directory name to use for the system catalog|
|-p||Specifies a location (path) to your data files|
|-n||Specifies a name for the configuration file that is created|
This utility automatically generates an AcuXDBC configuration file that includes the required configuration variables. The variables are set to the values that you define. You can override these with command-line parameters.
You can also specify an alternate directory name for GENESIS_HOME and an alternate configuration file name. Most of the settings are read from a template, located in $(GENESIS_HOME)/sample/acuxdbc/acuxdbc.in. Use this to customize the generation settings.
This table lists the configuration variables available, along with their defaults and brief descriptions. For complete descriptions, including examples, follow the links.
|DICTSOURCE||Install directory||Location (path) of your system catalog|
|FILE_PREFIX||Install directory||Location (path) of your data files
Note: Enclose any values contains space(s) in quotation marks. If the value can contain multiple directories that contain spaces, enclose the entire entry in quotation marks.
|FILE_SUFFIX||None||Extension of your data files|
|FILE_CASE||Default (Mixed)||Indicates the file case of your data files|
|FILENAME_WILDCARD||None||Defines multi-company wildcards and their respective substitution characters|
|IGNORE_OWNER||0||Specifies whether you want the table owner to be included in a listing of tables|
|INVALID_NUMERIC_DATA||Error||Indicates how to treat non-numeric data in a numeric field|
|JULIAN_BASE_DATE||19000101||The base date for Julian date calculation|
|NULL_ALPHA_READ||Null||Defines how to read null alphanumeric data|
|NULL_ALPHA_WRITE||Spaces||Defines how to write null alphanumeric data|
|NULL_NUMERIC_READ||0||Defines how to read null numeric data|
|NULL_NUMERIC_WRITE||0||Defines how to write null numeric data|
|DATE_ZERO_VALUE||YYYYMMDDHHmmsshh (Year/Month/Day/Hour/Minute/Second/Hundredths)||When DATETIME = DATE_ZERO_VALUE, LOW-VALUES or all 0 are returned|
|DATE_NINE_VALUE||YYYYMMDDHHmmsshh (Year/Month/Day/Hour/Minute/Second/Hundredths)||When DATETIME = DATE_NINE_VALUE, HIGH-VALUES or all 9 are returned|
|DATE_NULL_VALUE||YYYYMMDDHHmmsshh (Year/Month/Day/Hour/Minute/Second/Hundredths)||DATETIME is SQL NULL, the value of the DATE_NULL_VALUE will be written to the COBOL data.|
|DATE_INVALID_VALUE||YYYYMMDDHHmmsshh (Year/Month/Day/Hour/Minute/Second/Hundredths)||When DATETIME = DATE_INVALID_VALUE, spaces will be written to the COBOL|
|DATE_MAX_HIGH_VALUES||HIGH-VALUES or 9||Setting to configure DATE_NINE_VALUE|
|DATE_MIN_LOW_VALUES||LOW-VALUES or 0||Setting to configure DATE_ZERO_VALUE|
Defines the timeout for a query. When set to zero, the query never times out.
|READ_ONLY||No||Read/write status of data files|
|LOCKS_PER_FILE||10||The maximum number of record locks that can be held on a file when an SQL transaction has been issued|
|MAX_FILES||32||Maximum number of files that can be opened|
|MAX_LOCKS||32||The maximum number of record locks that can be held for all of the files together|
|V_BUFFERS||32||The number of indexed block buffers to allocate|
|LOG_BUFFER_SIZE||512||The maximum buffer size, in bytes, for the transaction log file|
|LOG_ENCRYPTION||off||Encrypts transaction log file|
|LOG_FILE||none||Name of transaction log file|
|LOG_DEVICE||off||Assumes that the log file is actually a device, rather than a file|
|LOGGING||off||Enables transaction logging|
|TEMP_DIR||current directory||Directory to be used for holding the temporary files generated by the transaction management system|
|TRANSACTIONS||on||Enables transaction processing in the AcuXDBC interface|
|TRANSACTION PROCESSING||off||Enables Vision's transaction processing support.|