ORDImage problems

Question

I'm trying to get interMedia to import some images into a table. My table contains a column of type ORDSYS.ORDIMAGE. I do as the help-files suggest, but end up with :
1 DECLARE
2 NewImage ORDSYS.ORDImage;
3 ctx RAW(10000) :=NULL;
4 BEGIN
5 INSERT INTO MyTable VALUES (
6 1200010001, 'EX', 'O',
7 ORDSYS.ORDImage(ORDSYS.ORDSource(empty_blob(),'FILE','MYDIRECTORY','MyFile.tif',SYSDATE,1),
8 NULL,NULL,NULL,NULL,NULL,NULL,NULL));
9 SELECT image INTO NewImage FROM MyTable
10 WHERE IMAGENO = 1200010001 for UPDATE;
11 NewImage.import(ctx);
12 -- 'file',
13 -- 'DUNCAN',
14 -- 'RG1200010001.tif');
15 NewImage.setProperties;
16 UPDATE MyTable SET image = NewImage WHERE imageno = 1200010001;
17 END;
18 /
DECLARE
ERROR at line 1:
ORA-28576: lost RPC connection to external procedure agent
ORA-06512: at "ORDSYS.ORDIMG_PKG", line 420
ORA-06512: at "ORDSYS.ORDIMAGE", line 25
ORA-06512: at line 15
What is happening? When I pull the thing apart, I can verify that the data is being imported into the ORDSource's BLOB, but ORDImage always falls over when I call setProperties. The server is running on NT(ws), and as far as I'm aware has its ExtProc connections configured correctly, and is listening. The RPC connection is being set up, but then the ORDImage code is throwing up an error. I have scoured the docs, and a lot of OTN to no avail. Help.
Cheers,
Duncan.
null

Answer 1

This is a tough one since there are lots of
possibilities that need to be ruled out.
I'd start with replacing the TIF image
with the sample image that comes with
the interMedia installation (imgdemo.dat).
If you still get the error then you can
rule out "invalid" data as the source of
the problem.
If you upgraded from 8.0.x you might want
to make sure you've got the correct
ORAORDIMG8.DLL in ORACLE_HOME\bin and
not the old one from the 8.0.x kit.
The 8.1.5 ORAORDIMG8.DLL should be
about 274,432 bytes in size and
if you opposite click on it in explorer,
pick properties, select the version tab,
it should be 8.1.5
One litmus test for determining if your
extproc setup is indeed OK is to load
ORACLE_HOME/plsql/demo/dbgextp.sql
and then
svrmgrl> execute DEBUG_EXTPROC.STARTUP_EXTPROC_AGENT;
Executing this procedure (which isn't
related to interMedia in any way) will
fire up the EXTPROC agent. If you get
errors from this then interMedia will
have problems too.
Note: I strongly recommend you don't use
a context parameter any larger than 4000
bytes. It's a waste and can lead to other
problems. Please change your ctx
declaration to 'ctx RAW(4000):=NULL;'
Note 2: the ORDImage.import() method will
implicitly do a setProperties for you so
you can take out your call.
If you don't want import() to call
setProperties for you set the fileFormat
to 'OTHER' (or 'OTHER: abcd') before
calling import...
NewImage.fileFormat := 'OTHER: LSAT';
NewImage.import(ctx);
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