ApplicationIdTool generated ID classes do not cater for embedded composite IDs
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Key: OPENJPA-1572
URL: https://issues.apache.org/jira/browse/OPENJPA-1572
Project: OpenJPA
Issue Type: Bug
Components: tooling
Affects Versions: 2.0.0-beta2
Reporter: Krzysztof
Having ClassB identified by the composite identity of the classA which has a
'simple types' composite identity, i.e.:
class ClassA
{
@Id
int x;
@Id
int y;
}
class ClassB
{
@Id
ClassA cA;
@Id
int b;
}
Generated ClassBId.fromstring passes only part of the string representation of
ClassA id to classA string constructor as nexttoken is not aware of the
composition of the ID and always extracts a single token which will result in
the null exception.
CLassBId {
...
private void fromString(String str) {
Tokenizer toke = new Tokenizer(str);
str = toke.nextToken();
if ("null".equals(str))
b = null;
else
b = str;
str = toke.nextToken();
if ("null".equals(str))
cA = null;
else
cA = new classA.classAId(str);
}
so, obviously for classB with a string representation like 0::1::2 only "1" is
passed to the constructor using ClassA.toString which results in wrong
initialization.
I have not been using detachement/attachment and have been wondering if this
inconsistency may have other impact during an object lifecycle.
The solution would be to pass full remaining part of the string and return the
last position for subsequent tokens extraction somehow.
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