UpdateVirtual Method
Updates an entry in the archive with on-the-fly content.
Syntax
archivewriter.updateVirtual(path, [callback])
Callback
The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).
The callback for this method is defined as:
function(err){ }
'err' is the error that occurred. If there was no error, then 'err' is 'null'.
'err' has 2 properties which hold detailed information:
err.code err.message
Remarks
Use this method to update content of an existing archive entry. Pass the archive-local entrypath via the Path parameter. After updating the entry, tune up its DataSource propertyin accordance with the desired content origin. Subscribe to BeforeCompressFile to supplythe actual data via FileData or FileStream properties.