Hi Samuel,
maybe there is an issue with your mapping metadata (you don't post the
whole metadata related to your m:n relations, so I can't review it).
If you use a composed primary key (by specifying more than one PK field)
in class-descriptor, the indirection table has to reflect the composed
PK(if the "left" class has 3 PK fields, "right" class has 2 PK fields,
the indirection table has to reflect all PK's in 3+2 columns).
An example using composed PK with m:n relation can be found in OJB
test-suite, the mapping can be found in repository_reference.xml
class-descriptor for org.apache.ojb.broker.M2NTest$MovieImpl
http://cvs.apache.org/viewcvs.cgi/db-ojb/src/test/org/apache/ojb/repository_junit_reference.xml?rev=1.17.2.5&view=markup
Could this be the issue?
regards,
Armin
Gru Samuel wrote:
Hi,
Last month, i had no aswer, so i already send my pb. ;-)
Please help me.
Thanks
Samuel
-----Message d'origine-----
De : Gru Samuel [mailto:[EMAIL PROTECTED]
Envoyé : vendredi 26 août 2005 10:45
À : Liste Ojb (E-mail)
Objet : ArrayIndexOutOfBoundsException Exception
Hi,
We want to use the ojb 1.0.3 (actually, we have the 1.0.rc5 version)
When i use this version, i have an ArrayIndexOutOfBoundsException exception.
my descriptors are :
<class-descriptor class="fr.ouestfrance.xxx.ProcedureServeur" table="proc">
....
<collection-descriptor
name="_Fonctions"
element-class-ref="fr.ouestfrance.xxx.FonctionParametreServeur"
auto-retrieve="true"
auto-update="true"
auto-delete="true"
orderby="nb_ordre" sort="ASC"
indirection-table="procedurefonction"
>
<fk-pointing-to-this-class column="id_proc"/>
<fk-pointing-to-element-class
column="id_fonctionparametree"/>
</collection-descriptor>
</class-descriptor>
<class-descriptor
class="fr.ouestfrance.xxx.FonctionParametreServeur"
table="fonctionparametree">
<field-descriptor name="_Id" column="id_fonctionparametree"
jdbc-type="numeric" primarykey="true" autoincrement="true" access="readonly"
/>
....
<collection-descriptor name="_Parametres"
element-class-ref="ParametreValoriseServeur"
auto-update="true"
auto-delete="true"
auto-retrieve="true"
orderby="nb_ordre" sort="ASC"
indirection-table="fonctionparametrevalorise">
<fk-pointing-to-this-class column="id_fonctionparametree"/>
<fk-pointing-to-element-class column="id_parametrevalorise"/>
</collection-descriptor>
<reference-descriptor name="_FonctionInstanciee"
class-ref="fr.ouestfrance.xxx.FonctionServeur"
auto-retrieve="true"
auto-update="false"
auto-delete="false">
<foreignkey field-ref="_FonctionInstanciee::_Id" />
</reference-descriptor>
</class-descriptor>
<class-descriptor
class="fr.ouestfrance.xxx.ParametreValoriseServeur"
table="parametrevalorise">
<field-descriptor name="_Id" column="id_parametrevalorise"
jdbc-type="numeric" primarykey="true"
autoincrement="true" access="readonly"/>
...
</class-descriptor>
java.lang.ArrayIndexOutOfBoundsException: 2
at
org.apache.ojb.broker.accesslayer.MtoNCollectionPrefetcher.buildMtoNImplemen
torQuery(Unknown Source)
at
org.apache.ojb.broker.accesslayer.MtoNCollectionPrefetcher.buildMtoNImplemen
torQueries(Unknown Source)
at
org.apache.ojb.broker.accesslayer.MtoNCollectionPrefetcher.prefetchRelations
hip(Unknown Source)
at
org.apache.ojb.broker.core.QueryReferenceBroker.performRetrievalTasks(Unknow
n Source)
at
org.apache.ojb.broker.core.QueryReferenceBroker.getCollectionByQuery(Unknown
Source)
at
org.apache.ojb.broker.core.QueryReferenceBroker.getCollectionByQuery(Unknown
Source)
at
org.apache.ojb.broker.core.QueryReferenceBroker.getCollectionByQuery(Unknown
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)
....
Can you explain me where the error is in my descriptor ?
When i read the src of the class, i see :
String[] indFkCols = getFksToThisClass();
String[] indItemFkCols = getFksToItemClass();
FieldDescriptor[] pkFields =
getOwnerClassDescriptor().getPkFields();
FieldDescriptor[] itemPkFields =
getItemClassDescriptor().getPkFields();
String[] cols = new String[indFkCols.length +
indItemFkCols.length];
int[] jdbcTypes = new int[indFkCols.length + indItemFkCols.length];
Do you think the last line is correct ?
Why it isnt "int[] jdbcTypes = new int[pkFields .length + itemPkFields
.length];" ?
Thanks,
Samuel
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des copies sera passible de poursuites. La société Ouest-France décline en
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