Hi again,
I think this issue has to something with the materialization of objects
(when using proxies). But I thought that proxies are only used, when
retrieving a corresponding collection of an object (in 1:n and m:n
relations, e.g. ShoppingCart.getArticles()...).
What I'm doing when using findAll() (see below) is something like SELECT
* FROM <tablename>. I thought, in this case no proxies are used???
Regards,
Abid
Abid Hussain schrieb:
Hi everybody,
I have written a storeAll()-method in a dao to store all given objects
in one transaction (you find the code at the end of this mail).
Now please have a look at the following lines of code:
Account_2DAO dao1 = new Account_2DAO("DB1");
Collection<Account_2> accounts = dao1.findAll(Account_2.class);
logger.debug(accounts);
Account_2DAO dao2 = new Account_2DAO("DB2");
dao2.storeAll(accounts);
As you see, that there are two daos initialized. The first (dao1)
retrieves all objects (using findAll()) from a database (DB1). The
second (dao2) stores all retrieved objects into another database (DB2).
The findAll()-method works fine.
But the storeAll()-method only works when the line of code
logger.debug(accounts);
is called. If not, no data is inserted.
Any ideas what's going wrong (you find the class-descriptor file below)?
Regards,
Abid
Code of storeAll():
public void storeAll(Collection<T> valueObjects)
throws PersistentStoringException {
if (valueObjects != null) {
try {
broker.beginTransaction();
for (T valueObject : valueObjects) {
broker.store(valueObject, ObjectModification.INSERT);
}
broker.commitTransaction();
} catch (Exception e) {
broker.abortTransaction();
throw new PersistentStoringException(
"Error while storing objects.\n" + e);
} finally {
if (broker != null && !broker.isClosed())
broker.close();
}
}
}
Class-descriptor of Account_2:
<class-descriptor class="modulverwaltung.beans.Account_2"
table="ACCOUNT_2" proxy="dynamic">
<field-descriptor name="id" column="ID" primarykey="true"
autoincrement="true" sequence-name="Account_Id_Seq" />
<field-descriptor name="username" column="Username"
jdbc-type="VARCHAR" />
<field-descriptor name="role" column="Rolle" jdbc-type="VARCHAR" />
</class-descriptor>
--
Abid Hussain
Mail: [EMAIL PROTECTED]
Web: http://www.abid76.de
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
