Valentina.GetDatabaseVersion() and remote database

[Charles Yeomans]

I think you're missing the point of Valentina.GetDatabaseVersion.  As  
I understand it, all that it does is to read some bytes from the file  
represented by the FolderItem and return the information.  This  
functionality should work no matter how Valentina is initialized.   
For a remote database, you cannot of course represent a database on  
the server as a FolderItem, in general.  Thus  
Valentina.GetDatabaseVersion does not make any sense in that context.

Unfortunately, the VDatabase interface is misleading.

Charles Yeomans




On Mar 14, 2007, at 2:41 PM, Stan Busk wrote:

> Hi,
>
> Strange. The code below works:
>
> dbi = mValentinaServer.DatabaseInfo(1)
> myDb = new myDatabase( mVConnection )
> f = new FolderItem( dbi.path, FolderItem.PathTypeShell )
> DBVersion = Valentina.GetDatabaseVersion( f )
>
> but as soon as I call Valentina.GetDatabaseVersion( f ) from inside  
> a method I get a Valentina Exception #-39. In other words, rather  
> than calling DBVersion = Valentina.GetDatabaseVersion( f ) directly  
> I have that function:
>
> Function Database_UpdateSchema( inFile As FolderItem )
>   Dim DbVersion as Integer
>   DbVersion = Valentina.GetDatabaseVersion( inFile )
> End Function
>
> I don't understand the point here.
>
> stan
>
>> On 12/3/07 8:18 PM, "Stan Busk" <maxprog at mac.com> wrote:
>>
>> Hi Stan,
>>
>>> Are the two last lines of the following code correct?
>>>
>>> ---
>>> mVConnection = new VConnection( aHost, aUserName, aPassword, aPort,
>>> aTimeOut, aParameter )
>>> mVConnection.Open()
>>> mValentinaServer = new VServer( mVConnection )
>>>
>>> dbi = mValentinaServer.DatabaseInfo(1)
>>>
>>> myDb = new myDatabase( mVConnection )
>>>
>>> f = new FolderItem( dbi.path, FolderItem.PathTypeShell )
>>>
>>> DBVersion = Valentina.GetDatabaseVersion( f )
>>> ---
>>
>> Not a fact this is correct.
>> Db already should be registered under VSERVER.
>>
>>> I am just trying to get the served DB version. It works fine when  
>>> the
>>> database in on localhost but I have doubts that would work on remote
>>> DBs as well unless Valentina is clever enough to just use the DB  
>>> name
>>> and already know what and where to look at. It looks like the Open()
>>> method is already that clever.
>>
>> Right. Open() opens db by name as it is registered under vserver
>>
>>
>> -- 
>> Best regards,
>>
>> Ruslan Zasukhin
>> VP Engineering and New Technology
>> Paradigma Software, Inc
>>
>> Valentina - Joining Worlds of Information
>> http://www.paradigmasoft.com
>>
>> [I feel the need: the need for speed]
>>
>>
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>> Valentina at lists.macserve.net
>> http://lists.macserve.net/mailman/listinfo/valentina
>
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