Hi,
I have two classes 'Role' and 'Group' that extend 'PermissionHolder". PermissionHolder includes as an attribute a collection of PermissionHolders. I am able to store a Role or a Group with contained permission holders successfully. However, I am having difficulties with retrevial. Exception as follows:
[org.apache.ojb.broker.accesslayer.JdbcAccessImpl] DEBUG: executeQuery: [EMAIL PROTECTED]: SELECT A0.NAME,A0.DESCRIPTION,A0.ID FROM roles A0 WHERE A0.ID = 1584
[org.apache.ojb.broker.accesslayer.RsIterator] DEBUG: RsIterator[org.apache.ojb.broker.accesslayer.RsQueryObject[query: QueryByCriteria from class com.eclipsej.user.RoleTO where [_id = 1584], class descriptor: com.eclipsej.user.RoleTO]] initialized
[org.apache.ojb.broker.accesslayer.RsIterator] DEBUG: hasNext() -> true
java.lang.NullPointerException
at org.apache.ojb.broker.metadata.ClassDescriptor.getPkFields(ClassDescriptor.java:1016)
at org.apache.ojb.broker.core.QueryReferenceBroker.getFKQueryMtoN(QueryReferenceBroker.java:660)
at org.apache.ojb.broker.core.Que[org.apache.ojb.broker.core.PersistenceBrokerImpl] DEBUG: PB.close was called: [EMAIL PROTECTED]
[org.apache.ojb.broker.cache.InternalCache] WARN: Found 1 abandoned objects in local cache, check code to force push to real ObjectCache
ryReferenceBroker.getFKQuery(QueryReferenceBroker.java:608)
In this case role (id=1584) has a single group in its collection.
I have also attached a copy of the repository. I'm sure I'm missing something simple - any help would be appreciated....
<!-- Definitions for com.eclipsej.permissions.PermissionHolder -->
<class-descriptor class="com.eclipsej.permission.PermissionHolder" table="permission_holders"> <extent-class class-ref="com.eclipsej.user.RoleTO" />
<extent-class class-ref="com.eclipsej.user.GroupTO" />
</class-descriptor> <!-- Defnitions for com.eclipsej.user.RoleTO -->
<class-descriptor class="com.eclipsej.user.RoleTO" table="roles">
<field-descriptor name="_id" column="ID" jdbc-type="BIGINT" primarykey="true" autoincrement="true"/>
<field-descriptor name="_name" column="NAME" jdbc-type="VARCHAR"/>
<field-descriptor name="_description" column="DESCRIPTION" jdbc-type="VARCHAR"/> <collection-descriptor name="_permissionHolders"
element-class-ref="com.eclipsej.permission.PermissionHolder"
auto-retreive="true"
auto-update="true"
auto-delete="false"
indirection-table="permission_holder_map"
>
<fk-pointing-to-this-class column="permission_holder_host_id"/>
<fk-pointing-to-element-class column="permission_holder_client_id"/>
</collection-descriptor> </class-descriptor>
Marcus
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