stariy95 commented on PR #615:
URL: https://github.com/apache/cayenne/pull/615#issuecomment-2110639172
HI @Jugen, thank you for another PR.
I like the overall idea, but in this case we need something more elaborate.
`CayennePath` is a good hack, but it's not supposed to be used for a model
specific information like that. Moreover, I don't even like the whole marker
thing in the paths and hope to get rid of the single marker there is now.
Giving this feature a bit thought, I think we need to add this information
explicitly to the model and rewrite all the flattened ids logic to use it.
Here's some ideas I have.
We could keep more information in the `ClassDescriptor` instead of just path
-> entity pairs:
```java
class AdditionalEntityDescriptor {
CayennePath path;
DbEntity entity;
boolean noDelete;
}
```
And keep a reference to it (maybe we could get away by just looking it up by
path?) when we are tracking flattened ids in the `ObjectStore`:
```java
class FlattenedId {
AdditionalEntityDescriptor flattenedEntity;
ObjectId id;
}
```
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