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Posted to ojb-user@db.apache.org by Frank Würffel <fr...@ptd.siemens.de> on 2004/12/15 10:59:44 UTC
collection objects have all null attributes
Hi,
My Problem is the following. When I query a single Object using QueryByCriteria
all is fine. If I query for a List using QueryByCrit(Class, null) I get a
Collection of the right Objects, correct amount too, but all Attributes are
null.
-------------------------------------------------
repository_user.xml exerpt
-------------------------------------------------
<!-- Doc Begin -->
<class-descriptor
class="com.siemens.pct.ptd.oi.processview.doc.Doc"
>
<extent-class class-
ref="com.siemens.pct.ptd.oi.processview.doc.BaseDoc" />
</class-descriptor>
<!-- Doc End -->
<!-- BaseDoc Begin -->
<class-descriptor
class="com.siemens.pct.ptd.oi.processview.doc.BaseDoc"
>
<extent-class class-
ref="com.siemens.pct.ptd.oi.processview.doc.DocMgmtDoc" />
</class-descriptor>
<!-- BaseDoc End -->
<!-- DocMgmtDoc Begin -->
<class-descriptor
class="com.siemens.pct.ptd.oi.processview.doc.DocMgmtDoc"
table="DOCUMENT"
>
<extent-class class-
ref="com.siemens.pct.ptd.oi.processview.doc.TemplateDoc" />
<extent-class class-
ref="com.siemens.pct.ptd.oi.processview.docWf.DocMgmtWfDoc" />
<field-descriptor
name="docMgmtDockeyId"
column="DOCUMENT_ID"
jdbc-type="INTEGER"
primarykey="true"
access="anonymous"
/>
<reference-descriptor
name="key"
class-
ref="com.siemens.pct.ptd.oi.processview.doc.DocKey"
auto-retrieve="true"
auto-update="object"
auto-delete="object"
>
<foreignkey field-ref="docMgmtDockeyId" />
</reference-descriptor>
<field-descriptor
name="projectKey"
column="PROJECT_ID"
jdbc-type="VARCHAR"
conversion="com.siemens.pct.ptd.oi.processview.ojb.conversion.ProjectKey
2StringConversion"
/>
<field-descriptor
name="ojbConcreteClass"
column="CLASS_NAME"
jdbc-type="VARCHAR"
/>
<field-descriptor
name="docMgmtKeyId"
column="DOC_MGMT_KEY_ID"
jdbc-type="INTEGER"
access="anonymous"
/>
<reference-descriptor
name="docMgmtKey"
class-
ref="com.siemens.pct.ptd.oi.processview.docuCockpit.jcoImpl.JcoDocMgmtKey"
auto-retrieve="true"
auto-update="object"
auto-delete="link"
>
<foreignkey field-ref="docMgmtKeyId" />
</reference-descriptor>
</class-descriptor>
<!-- DocMgmtDoc End -->
<!-- TemplateDoc Begin -->
<class-descriptor
class="com.siemens.pct.ptd.oi.processview.doc.TemplateDoc"
table="DOCUMENT"
>
<field-descriptor
name="templateDocKeyId"
column="DOCUMENT_ID"
jdbc-type="INTEGER"
primarykey="true"
access="anonymous"
/>
<reference-descriptor
name="key"
class-
ref="com.siemens.pct.ptd.oi.processview.doc.DocKey"
auto-retrieve="true"
auto-update="object"
auto-delete="object"
>
<foreignkey field-ref="templateDocKeyId" />
</reference-descriptor>
<field-descriptor
name="ojbConcreteClass"
column="CLASS_NAME"
jdbc-type="VARCHAR"
/>
<field-descriptor
name="projectKey"
column="PROJECT_ID"
jdbc-type="VARCHAR"
conversion="com.siemens.pct.ptd.oi.processview.ojb.conversion.ProjectKey
2StringConversion"
/>
<field-descriptor
name="templatedocMgmtKeyId"
column="DOC_MGMT_KEY_ID"
jdbc-type="INTEGER"
access="anonymous"
/>
<reference-descriptor
name="docMgmtKey"
class-
ref="com.siemens.pct.ptd.oi.processview.docuCockpit.jcoImpl.JcoDocMgmtKey"
auto-retrieve="true"
auto-update="object"
auto-delete="link"
>
<foreignkey field-ref="templatedocMgmtKeyId" />
</reference-descriptor>
</class-descriptor>
<!-- TemplateDoc End -->
<!-- DocMgmtWfDoc Begin -->
<class-descriptor
class="com.siemens.pct.ptd.oi.processview.docWf.DocMgmtWfDoc"
table="DOCUMENT"
>
<field-descriptor
name="wfDocKeyId"
column="DOCUMENT_ID"
jdbc-type="INTEGER"
primarykey="true"
access="anonymous"
/>
<reference-descriptor
name="key"
class-
ref="com.siemens.pct.ptd.oi.processview.doc.DocKey"
auto-retrieve="true"
auto-update="object"
auto-delete="object"
>
<foreignkey field-ref="wfDocKeyId" />
</reference-descriptor>
<field-descriptor
name="projectKey"
column="PROJECT_ID"
jdbc-type="VARCHAR"
conversion="com.siemens.pct.ptd.oi.processview.ojb.conversion.ProjectKey
2StringConversion"
/>
<field-descriptor
name="ojbConcreteClass"
column="CLASS_NAME"
jdbc-type="VARCHAR"
/>
<field-descriptor
name="wfdocMgmtKeyId"
column="DOC_MGMT_KEY_ID"
jdbc-type="INTEGER"
access="anonymous"
/>
<reference-descriptor
name="docMgmtKey"
class-
ref="com.siemens.pct.ptd.oi.processview.docuCockpit.jcoImpl.JcoDocMgmtKey"
auto-retrieve="true"
auto-update="object"
auto-delete="link"
>
<foreignkey field-ref="wfdocMgmtKeyId" />
</reference-descriptor>
</class-descriptor>
<!-- DocMgmtWfDoc End -->
----------------------------------------
broker calls made
----------------------------------------
---> works perfectly for all extents
broker = PersistenceBrokerFactory.defaultPersistenceBroker();
Criteria crit = new Criteria();
crit.addEqualTo("key.id", docKey.getString());
Query q = new QueryByCriteria(DocMgmtDoc.class, crit);
docMgmtDoc = (DocMgmtDoc) broker.getObjectByQuery(q);
---> delivers list of correctly typed objects with null attributes
broker = PersistenceBrokerFactory.defaultPersistenceBroker();
Criteria crit = new Criteria();
crit.addEqualTo("ojbConcreteClass", TemplateDoc.class.getName());
Query q = new QueryByCriteria(TemplateDoc.class, crit);
allTemplates = (Collection) broker.getCollectionByQuery
(TemplateDoc.class, q);
--> or
broker = PersistenceBrokerFactory.defaultPersistenceBroker();
Query q = new QueryByCriteria(TemplateDoc.class, null);
allTemplates = (Collection) broker.getCollectionByQuery(q);
If anyone could help this would be very appreciated.
Thank you.
Frank
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