Howdy
I have reduced the problem I experience to the bare essentials. Let me
elaborate.
Two simple classes called 'A' and 'B'. Both classes have an 'id' of type
String. The 'id' is generated by the UUID key-generator. I can persist
instances of 'A' and 'B' without problems.
Now 'B' has a reference to 'A' and therefor 'B' depends on 'A'. Type 'B'
has a property called 'a' of type 'A'.
If, in a single transaction, I create an instance of 'A', called 'a1'
and an instance of 'B', called 'b1'. Then 'b1' receives a reference to
'a1'. The transaction is committed and without problems so far.
Now, I want to have a new instance of type 'B', called 'b2' associated
with the persistent instance 'a1' of type 'A'. I retrieve 'a1' from the
database and associate 'b2' with 'a1'. The assertions in my TestSuite
assures me that 'b1.a' is referring to 'a1'. Then when the transaction
is committed, a NULL is inserted for the property 'a' which holds a
reference to 'a1'. Instead of storing the 'id' of 'a1', a NULL is
inserted.
The problem is derived from a larger complex meta-model repository, so I
leave out all the irrelevant bits and pieces.
It would be great if someone can help me out. Is it my understanding or
really a bug, that is what I would like to know.
Thanks,
Eduard.
_________
class A {
public String id;
..
}
class B {
public String id;
public A a;
..
}
create table A (
id varchar(30) not null,
primary key ( id )
);
create table B (
id varchar(30) not null,
a_id varchar(30) not null,
primary key ( id ),
foreign key (a_id) references A (id)
);
<class name="A" identity="Id" key-generator="UUID">
<map-to table="A" xml="A" />
<field name="id" required="true" direct="true">
<sql name="id" />
<bind-xml name="id" node="attribute"/>
</field>
</class>
<class name="B" identity="Id" key-generator="UUID">
<map-to table="B" xml="B" />
<field name="id" required="true" direct="true">
<sql name="id" />
<bind-xml name="id" node="attribute"/>
</field>
<field name="a" type="A" required="true" direct="true">
<sql name="a_id" dirty="check" />
<xml name="a" node="element" />
</field>
</class>
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