How to handle the copyValue flag for non serializable instances?

By default, a slot value is copied when it is propagated due to a connection. However, that is behaviour is problematic when a slot value is non serializable (e.g. an object with circular references) since it cannot be copied. To be able to have non serializable slot values, you may set the copyValue property of a connection to false. In that case, a slot value will not be copied, instead, it will be passed as a reference.

This way, a connection definition between a componentA and a componentB may look as follows:

...
{
    "connectionId": "nonSerializableConnection",
    "source": {
        "memberIdRef": "componentA",
        "slot": "nonSerializableSlot"
    },
    "destination": {
        "memberIdRef": "componentB",
        "slot": "nonSerializableSlot"
    },
    "copyValue": false
}
...