Hi Armin,
sorry for the late response.
In all cases I'm using the
ObjectCacheClass=org.apache.ojb.broker.cache.ObjectCacheEmptyImpl.
I use the following class-descriptor in repository and the
OqlCollectionClass in OJB.properties.
<class-descriptor
class="de.orgacard.common.ojb.bo.Dislike"
table="ABNEIG"
>
<field-descriptor id="1"
name="id"
column="id"
jdbc-type="INTEGER"
primarykey="true"
autoincrement="true"
access="readwrite"
/>
</class-descriptor>
OqlCollectionClass=org.apache.ojb.odmg.collections.DListImpl
This is my query
try {
OQLQuery query = myOdmg.newOQLQuery();
String oqlQuery = "select del from " +
DbObject.class.getName();
query.create(oqlQuery);
DList result = (DList) query.execute();
size = result.size();
} catch( Exception lnge ) {
lnge.printStackTrace();
}
This exception is thrown
35266 [main] ERROR (?:?) - Generation of new id failed
java.lang.NullPointerException
at
org.apache.ojb.broker.util.sequence.AbstractSequenceManager.getUniqueValue(U
nknown Source)
at org.apache.ojb.odmg.collections.DListImpl.generateNewId(Unknown Source)
at org.apache.ojb.odmg.collections.DListImpl.getId(Unknown Source)
at org.apache.ojb.odmg.collections.DListEntry.<init>(Unknown Source)
at org.apache.ojb.odmg.collections.DListImpl.ojbAdd(Unknown Source)
at
org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(Unknow
n Source)
at
org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(Unknow
n Source)
at
org.apache.ojb.broker.core.PersistenceBrokerImpl.getCollectionByQuery(Unknow
n Source)
at
org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCollectionByQuery(
Unknown Source)
at
org.apache.ojb.broker.core.DelegatingPersistenceBroker.getCollectionByQuery(
Unknown Source)
at org.apache.ojb.odmg.oql.OQLQueryImpl.execute(Unknown Source)
If I use
OqlCollectionClass=org.apache.ojb.broker.util.collections.ManageableArrayLis
t all is ok.
Query with ManageableArrayList
try {
OQLQuery query = myOdmg.newOQLQuery();
String oqlQuery = "select del from " +
DbObject.class.getName();
ManageableArrayList result =
(ManageableArrayList)query.execute();
size = result.size();
} catch( Exception lnge ) {
lnge.printStackTrace();
}
I get the same result when I'm using the
ObjectCacheClass=org.apache.ojb.broker.cache.ObjectCacheDefaultImpl.
Thanks for response.
Ralf
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