* transaction is processed separately from any preceding transactions.
* Non-barrier transactions may be merged and processed in a batch,
* such that any observers see the modifications contained in them as
* if the modifications were made in a single transaction.
* @return A new {@link DOMDataWriteTransaction}
* transaction is processed separately from any preceding transactions.
* Non-barrier transactions may be merged and processed in a batch,
* such that any observers see the modifications contained in them as
* if the modifications were made in a single transaction.
* @return A new {@link DOMDataWriteTransaction}