1289 Shared transient objects cannot reference non-shared transient objects

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1289 Shared transient objects cannot reference non-shared transient objects

Cause

This error occurs if your application code attempts to reference a non-shared transient object from a shared transient object. This can be caused directly, by assigning a non-shared transient reference to the property of a shared transient object, or indirectly, by assigning a shared transient reference to the property of a non-shared transient object where an inverse exists back to the shared transient object (which results in an attempt to assign a reference to the non-shared transient on the shared transient object).

Action

Change your application code so that shared transient objects do not reference non-shared transient objects.

You can use the Process class allowTransientToSharedTranInvs method with a parameter value of true to allow a reference to a shared transient object from a non-shared transient object without its inverse being maintained. The rules for assigning references are summarized as follows.

Where no inverse references exist, a shared transient object can reference persistent or other shared transient objects but not non-shared transient objects.
Where no inverse references exist, a non-shared transient object can reference persistent and both shared and non-shared transient objects.
Where inverse references exist (and the option to allow non-shared transient to shared transient inverse reference is not enable by the allowTransientToSharedTranInvs method, as above), the objects involved must both be persistent, both shared transient, or both be non-shared transient. A mixture of transient and persistent objects results in this error.