enableByteProgressEvents(increment: Integer);
The enableByteProgressEvents method of the JadeDatabaseAdmin class enables the notification of operation and progress events for file backups at the progress interval specified in the increment parameter, which represents a number of bytes. A value of zero (0) for the increment parameter specifies the lowest allowed value of 128K bytes.
When operation and progress event notifications are enabled:
A progress event is notified by each DbFile instance whenever the specified number of bytes of the file has been copied.
An operation event is notified by each DbFile instance of the backup operation being performed on the file.
For details, see "JadeDatabaseAdmin Class Event Notifications" and "DbFile Class Event Notifications", elsewhere in this chapter.
The following example shows the use of the enableByteProgressEvents method.
initialise(backupDir: String;
compress, verify, includeSystemFiles: Boolean;
overwrite, quiesce: Boolean) updating;
begin
// Save backup parameters for calls to database backup methods
defaultDirectory := backupDir;
compressFiles := compress;
verifyFiles := verify;
includeSysFiles := includeSystemFiles;
overwriteFiles := overwrite;
quiescedBackup := quiesce;
// Enable backup progress events to occur in increments of 1000000 bytes
self.dba.enableByteProgressEvents(1000000);
end;
Enabling operation and progress notification is likely to have some impact on the elapsed time of file backups.