Hibernate version:
1.2.1

Hi

I cannot get the composite-element to work. Whenever it'll get persisted I get a MappingException - "collection was not an association".

<class ...>
....
<bag name="OpenHourList2"
cascade="all-delete-orphan">
<key column ="Parent" />
<composite-element class="[xxx].TimePeriod" >
<property name="StartTime" />
<property name="EndTime" />
</composite-element>
</bag>
....
</class>

Does someone recognize this problem? Am I missing something? Is it a bug?

Regards
Roger

(As usual ;)) I found out what caused the problem too late. After I wrote the issue, I found out that the cascading messed things up. When this attribute was removed - things started to work correctly.

However - this must surely be a bug? I'm fully aware that a collection of components might be seen as "part of the entity" (the same a component is), but that this throws a strange exception doesn't make sense.

To make things clearer(?)... The problem occurs if all-delete-orphan is set on the bag holding the composite-element

Specifying "cascade" is erroneous for a "composition" (in UML's sense). That is, the parent owns the children; therefore, cascading is implicitly all-delete-orphan and specifying it explicitly is only allowed when the elements of the collection are entities in their own rights.

Yes, understood. Thanks.