Thanks for your help. I will take a look but most likely there are some
issues with my code itself which is similar to Webdav but may be I
missed something.
My usecase is the following :
1. Create files in slide. [ not committed ]
2. Read the files from slide for creating some record in DB.
3. If creation of DB is successful then commit the txn of slide.
Hope this will help.
Thanks,
Rakesh
Warwick Burrows wrote:
Yes but there are cases where you need to run a command and then get
information on the object created to store yourself or return to a
caller. For example a lock gets created on an object and in another
method call within the same transaction we check that the object is
locked before it can allow changes to the object. The latter can't
assume that the object is locked and must test it. So the transaction
must keep a record that this object was previously locked in this
transaction. Also the WebDAV external transaction implementation in the
WebDAV client relies on it. When a transaction is started you can create
a parent collection (mkcol) and put files in it (put) and then
potentially commit or roll it all back. The calls to put the files must
be able to see the parent collection in you just created in the same
transaction. The same mechanism used to do transactions internally in
the slide server is also used to do external transactions.
There is probably something wrong with the enlistment of the services
between the calls within the transaction. Ie. one of the calls, either
the create or the list, is not enlisting resources to the current
transaction. Maybe that is something that the caller is supposed to do
expicitly when using the Slide API?? Maybe the calls you are making are
not high enough up in the call hieararchy to be calling the right chain
of calls to enlist the resources to the transaction? I don't know as
I've only used the transaction implementation from the WebDAV client
interface.
I can only suggest that you try comparing your Slide API transaction
calls with the sequence of events that happen when a transaction is
started by the WebDAV client entry point which is in
AbstractWebdavMethod.run(). Look for "token.begin()" and try comparing
what this method does to what you are doing.
Warwick
-----Original Message-----
From: Michael Oliver [mailto:[EMAIL PROTECTED]
Sent: Tuesday, January 03, 2006 9:16 AM
To: 'Slide Users Mailing List'
Subject: RE: Slide Transaction
Can I ask why you want to access files or collections before
they are committed? The whole point of a transaction is to
package things so they either all happen or all do not. If
you are using the API then you already have the files you put
into the transaction. If you are doing it to test that they
got created, in a read after write fashion, the transaction
process already does that internally so you can be assured
the transaction won't complete unless all the items were successful.
Michael Oliver
CTO
Alarius Systems LLC
6800 E. Lake Mead Blvd, #1096
Las Vegas, NV 89156
Phone:(702)953-8949
Fax:(702)974-0341
-----Original Message-----
From: Ray Sprinkle [mailto:[EMAIL PROTECTED]
Sent: Tuesday, January 03, 2006 6:57 AM
To: Slide Users Mailing List
Subject: RE: Slide Transaction
Sorry, my experience is with the Webdav interface, I do know
you have to go through back flips with the Webdav interface
to insure that everything is part of the same transaction.
-----Original Message-----
From: Rakesh Saha [mailto:[EMAIL PROTECTED]
Sent: Monday, January 02, 2006 8:59 AM
To: Slide Users Mailing List
Subject: Re: Slide Transaction
I am using native slide API.
Ray Sprinkle wrote:
Are you using the Webdav interface or native slide?
-----Original Message-----
From: Rakesh Saha [mailto:[EMAIL PROTECTED]
Sent: Tuesday, December 20, 2005 5:30 AM
To: Slide Users Mailing List
Subject: Slide Transaction
Hi All ,
I am trying out Slide Transactions in my project.
I am not able to retrieve the files or folders created in the same
transaction before the txn is committed.
I am using following code :
<slideTransaction>.begin();
createFolder();
List fl = <list directoires in the folder>
<slideTransaction>.commit();
Slide Transaction -> NamespaceAccessToken
I am getting following error :
/org.apache.slide.structure.ObjectNotFoundException: No
object found at
/files/protocolTestCases/
Anyone used Slide Transaction ? Could you please provide any
pointer ?
Thanks,
Rakesh
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