First
Why did you say that WClientJDO and WApplicationJDO have a
bi-directional relationship? Here is the mapping descriptor for
WClientJDO:
<class name="test.WClientJDO" key-generator="MAX" identity="id">
<map-to table="CLIENT" />
<cache-type type="unlimited" />
<field name="timestamp" type="long" get-method="jdoGetTimeStamp"
set-method="jdoSetTimeStamp">
<sql name="CLI_TIMESTAMP" />
<bind-xml name="timestamp" />
</field>
<field name="id" type="big-decimal">
<sql name="CLI_ID" />
<bind-xml name="id" />
</field>
<field name="name" type="string">
<sql name="CLI_NAME" />
<bind-xml name="name" />
</field>
</class>
Second:
Why do you say that client is loaded as ReadOnly?
WClientJDO client =
(WClientJDO)_db.load(WClientJDO.class,new BigDecimal(2));
I don't think load is loading as ReadOnly by default?
Thanks,
Guy
-----Message d'origine-----
De�: Bruce Snyder [mailto:ferret@;frii.com]
Envoy�: jeudi 7 novembre 2002 20:28
��: [EMAIL PROTECTED]
Objet�: Re: [castor-dev] Problem in inserting table with foreign key
This one time, at band camp, Guy Di Fulvio said:
GDF>Here something else on the same pattern that does not work. Could
anyone
GDF>tell me why?
GDF>
GDF>Load an object Client 2/close the transaction
GDF>Load an object Application 1
GDF>Set application.client = Client 2
GDF>Call application.update
GDF>
GDF>The error is:
GDF>org.exolab.castor.jdo.PersistenceException: Object,
GDF>test.WApplicationJDO@a613f8, links to another object,
GDF>test.WClientJDO@6921fd that is not loaded/updated/created in this
GDF>transaction
GDF>
GDF>See code below:
GDF>_db = getDatabase();
GDF>_db.setAutoStore(false);
GDF>_db.begin();
GDF>WClientJDO client = (WClientJDO)_db.load(WClientJDO.class,new
GDF>BigDecimal(2));
GDF>_db.commit();
GDF>_db.close();
GDF>
GDF>_db = getDatabase();
GDF>_db.setAutoStore(false);
GDF>_db.begin();
GDF>WApplicationJDO application =
GDF>(WApplicationJDO)_db.load(WApplicationJDO.class,new BigDecimal(1));
GDF>application.setJdoClient(client);
GDF>_db.commit();
GDF>_db.close();
OK, here's a bit more detail in this one.
WClientJDO and WApplicationJDO have a bi-directional relationship
established between them via the mapping descriptor. If you load the
client object as read-only, but then you associate it with the
application
object, the client object must change. This is certainly going to be a
problem because Castor cannot modify the client object letting it know
with which application object it is associated.
Bruce
--
perl -e 'print
unpack("u30","<0G)U8V4\@4VYY9&5R\"F9E<G)E=\$\!F<FEI+F-O;0\`\`");'
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