Application level transaction handling

[isuru89]

It it nice to have to handle a transaction from application level without embedding business logic in query scripts.

NyQLInstance nyqlInstance = ...
nyqlInstance.doTransaction("transactionId", (nyqlInst, data) -> {
        // your business logic here
        // NOTE: always use provided NyQLInstance instead of the instance in parent scope
    }, 
    data,  // map of data which will be send to the transaction body
    true    // whether to auto commit or not
);

Transaction body is a BiFunction which has inputs of current NyQLInstance and the map of data. In case user wants to execute other non-transactional scripts from inside transaction body, the provided NyQLInstance must be used.

WARN: User never can call another transactional scripts/queries from inside the transaction body.