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Editorial Team
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Asked: 2026-05-18T12:48:37+00:00

I have a model that looks like this: A — Many-toMany –> B —

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I have a model that looks like this:

A -- Many-toMany --> B -- Many-toMany --> C

Both A and B have the CascadeType of All and FetchType of Lazy.

When I make the following call:

A mergedA = (A) session.merge(a);

The mergedA has the collection of B objects resolved. B however does not have its collection of C objects resolved.

If I make the following call:

B mergedB = (B) session.merge(b);

The mergedB has the collection of C objects resolved.

If both A and B have the CascadeType of All, why does the collections of C objects not get resolved for the collection of Bs when I call session.merge(a);?

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1 Answer

  1. Editorial Team

    Its because, it does it for the single step deep in the object graph and C is at the second step. Thus, it did just for the immediate one.

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