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Home > Archive > Commerce Server General > July 2004 > No error information available: E_NOINTERFACE(0x80004002).
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No error information available: E_NOINTERFACE(0x80004002).
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| Ravi Shankar 2004-07-01, 5:53 pm |
| My custom pipeline component fails with this error
message being logged in Event Viewer and Pipeline Log.
This happens the SECOND time this pipeline is called. The
first time the component completes successfully.
What could be the problem ????
| |
| David Messner [MSFT] 2004-07-01, 5:53 pm |
| Well, it's hard to say without knowing anything about the internals of your
pipeline component.
Is the pipeline component registered in COM+ by chance? Generally you do
not need/want to do this since the Pipeline objects themselves are
registered in COM+ and you can choose the transaction settings of the
pipeline you use.
Which type of pipeline are you using? Is this in .NET site using
<pipelines> tag in Web.config? If so, it will be PooledPipeline, which may
be a contributing factor. Is the component registered as poolable (marked
with the COM category GUID that indicates to the pipeline that it meets the
criteria to be pooled)? If so, does it really? :-)
Silly question, but have you attached a debugger to see what line of code
is returning E_NOINTERFACE, or is not even getting into your component the
second time?
regards
-djm
--
This posting is provided "AS IS" with no warranties, and confers no rights.
You assume all risk for your use. © 2004 Microsoft Corporation. All rights
reserved.
--------------------
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From: "Ravi Shankar" <shankar.nospam@hp.com>
Sender: "Ravi Shankar" <shankar.nospam@hp.com>
Subject: No error information available: E_NOINTERFACE(0x80004002).
Date: Thu, 1 Jul 2004 08:56:42 -0700
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My custom pipeline component fails with this error
message being logged in Event Viewer and Pipeline Log.
This happens the SECOND time this pipeline is called. The
first time the component completes successfully.
What could be the problem ????
| |
| Ravi Shankar 2004-07-02, 9:10 pm |
| Let me explain the scenario..
Created a custom resource (.Net Component) called=20
ABCDService which uses ADO.Net with oleDb resources to do=20
read and writes to the database.
This custom resource is instantiated using a custom=20
commerce module CommerceABCDModule...
There are two pipeline components...
1. ComputeABCDPoints - this component calculates values=20
based on the user_id and order totals and stores them=20
into the basket.
2. RecordABCDPoints - this component reads the values=20
previously created and writes them into the database.
Both these pipeline components are registered for COM=20
Interop and registered for the "Accept" stage.
Within the ABCDService, the required resource tables are=20
loaded into a DataSet during the Initialise phase. the=20
second component RecordABCDPoints is calling a=20
method "LogABCDTransaction" which is adding a record to=20
one of the tables in the DataSet and calls=20
DataSet.AcceptChanges() on successfull write.
Both these components are part of the checkout pipeline=20
which runs in a transacted mode.
The Custom Commerce Module, the pipeline components, the=20
ABCD Service class are all part of one project which is=20
registered for COM Interop and loaded using regasm /tlb:=20
and gacutil /i...
The Pipeline Components have a GUID attribute defined.
The ABCDService is NOT a serviced component.
Does this help you ?
Regards.
>-----Original Message-----
>Well, it's hard to say without knowing anything about=20
the internals of your=20
>pipeline component.
>
>Is the pipeline component registered in COM+ by chance? =20
Generally you do=20
>not need/want to do this since the Pipeline objects=20
themselves are=20
>registered in COM+ and you can choose the transaction=20
settings of the=20
>pipeline you use.
>
>Which type of pipeline are you using? Is this in .NET=20
site using=20
><pipelines> tag in Web.config? If so, it will be=20
PooledPipeline, which may=20
>be a contributing factor. Is the component registered=20
as poolable (marked=20
>with the COM category GUID that indicates to the=20
pipeline that it meets the=20
>criteria to be pooled)? If so, does it really? :-)
>
>Silly question, but have you attached a debugger to see=20
what line of code=20
>is returning E_NOINTERFACE, or is not even getting into=20
your component the=20
>second time?
>
>regards
>-djm
>--=20
>This posting is provided "AS IS" with no warranties, and=20
confers no rights.
>You assume all risk for your use. =A9 2004 Microsoft=20
Corporation. All rights
>reserved.
>
>--------------------
>Content-Class: urn:content-classes:message
>From: "Ravi Shankar" <shankar.nospam@hp.com>
>Sender: "Ravi Shankar" <shankar.nospam@hp.com>
>Subject: No error information available: E_NOINTERFACE
(0x80004002).
>Date: Thu, 1 Jul 2004 08:56:42 -0700
>Lines: 8
>Message-ID: <2455b01c45f84$00769630$a301280a@phx.gbl>
>MIME-Version: 1.0
>Content-Type: text/plain;
> charset=3D"iso-8859-1"
>Content-Transfer-Encoding: 7bit
>X-Newsreader: Microsoft CDO for Windows 2000
>Thread-Index: AcRfhAB2Qq0s1gxYTym3nMQCWLXdvw=3D=3D
>X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4910.0300
>Newsgroups: microsoft.public.commerceserver.general
>Path: cpmsftngxa06.phx.gbl
>Xref: cpmsftngxa06.phx.gbl=20
microsoft.public.commerceserver.general:14178
>NNTP-Posting-Host: tk2msftngxa11.phx.gbl 10.40.1.163
>X-Tomcat-NG: microsoft.public.commerceserver.general
>
>My custom pipeline component fails with this error=20
>message being logged in Event Viewer and Pipeline Log.
>
>This happens the SECOND time this pipeline is called.=20
The=20
>first time the component completes successfully.
>
>What could be the problem ????
>
>
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