Unfortunately now I am not at office.
Tomorrow I'll send a full maping file.
----- Original Message -----
Sent: Friday, November 15, 2002 7:57
PM
Subject: Re: [castor-dev] custom
KeyGenerator creation problem
what's your mapping file look like?
-----Original Message-----
From:
gidro99 [mailto:[EMAIL PROTECTED]]
Sent: Friday, November 15, 2002 9:23 AM
To: [EMAIL PROTECTED]
Subject: [castor-dev] custom KeyGenerator creation problem
Hello,
I am trying create my custom KeyGenerator wich will use stored
procedure of
one big old project...
To begin I want to clone an existing KeyGenerator
MaxKeyGenerator by giving
him the new name
MinKeyGenerator,
and call it "MIN" in the mapping
file.
For this purpose I have made the following :
I cloned MaxKeyGenerator to MinKeyGenerator:
1) I copied:
org.exolab.castor.jdo.drivers.MaxKeyGenerator ->
org.exolab.castor.jdo.drivers.MinKeyGenerator;
org.exolab.castor.jdo.drivers.MaxKeyGeneratorFactory ->
org.exolab.castor.jdo.drivers.MinKeyGeneratorFactory
2) I modified:
method
MinKeyGeneratorFactory.getName() now returns "MIN" ...
---------------
public
String getName() {
return "MIN";
}
---------------
all other methods and
properties I less like in MaxKeyGeneratorFactory and
MaxKeyGenerator...
3) I added a MaxKeyGeneratorFactory to the file
castor.properties:
----------------
# List of key generator factories
org.exolab.castor.jdo.keyGeneratorFactories=\
org.exolab.castor.jdo.drivers.MinKeyGeneratorFactory,\
org.exolab.castor.jdo.drivers.MaxKeyGeneratorFactory,\
org.exolab.castor.jdo.drivers.HighLowKeyGeneratorFactory,\
org.exolab.castor.jdo.drivers.IdentityKeyGeneratorFactory,\
org.exolab.castor.jdo.drivers.SequenceKeyGeneratorFactory,\
org.exolab.castor.jdo.drivers.UUIDKeyGeneratorFactory,\
----------
I successefully compiled
project and added MinKeyGenerator.jar to the
project
...
also I removed files (castor.properties) from
(castor-0.9.4.jar) and
(castor-0.9.4-xml.jar)...
----------
I changed the name of
key-generator MAX to MIN in mapping file of the
working application...
<mapping>
<class name="facastor15.Emprunt" identity="IdEmprunt"
key-generator="MIN">
<map-to table="Emprunt"
xml="Emprunt"/>
---------
And now then I start my application I have an Exception:
Castor: Creating facastor15.Emprunt (null)
org.exolab.castor.jdo.PersistenceException: Cannot create object of
type
facastor15.Emprunt with null identity field and
no key generator
org.exolab.castor.jdo.PersistenceException: Cannot create object of
type
facastor15.Emprunt with null identity field and
no key generator
at
org.exolab.castor.jdo.engine.SQLEngine.create(Unknown Source)
at org.exolab.castor.persist.ClassMolder.create(Unknown
Source)
at
org.exolab.castor.persist.LockEngine.create(Unknown Source)
at org.exolab.castor.persist.TransactionContext.create(Unknown
Source)
at
org.exolab.castor.jdo.engine.DatabaseImpl.create(Unknown Source)
at
facastor15.ImportExport.createEmprunt(ImportExport.java:224)
at facastor15.ImportExport.run(ImportExport.java:278)
at
facastor15.ImportExport.main(ImportExport.java:50)
-----------
the same exception I have
if I change the key-generator="MIN" to any not
existing key-generator name...
encore
What I do wrong ???
May be I have to
change some properties file ...
The source files and jar you can find in attach.
Help me, Please.
And forgive me for my
bad english.
