Is there a way to check if variables within a OVM component is registered to the factory via OVM field automation macros?

Say I have a transaction item class like below:

class tx_item extends ovm_sequence_item;
    logic a;
    logic b;

        `ovm_field_int(a, OVM_ALL_ON)
        `ovm_field_int(b, OVM_ALL_ON)

    // other boiler plate code not included here

Now lets say I would like to use the transaction_item somewhere else in other OVM components. Is there a way to check if the logic variable a and b within tx_item have been registered in the factory via the field automation macros in the tx_item class?

In reply to wchua:

No. This is another reason why the field automation macros should not be utilized.