Function 2
Find Order
Pencarian menggunakan Hash Map → O(1) average lookup
Search by Order ID
Quick Select
Sequence Flow — alt [order found / not found]
findOrder(order_id)
Request masuk ke Order Controller
lookup(order_id) → Hash Map
O(1) average complexity lookup
[found] return order_record
Data dikembalikan dari Hash Map
[not found] return not_found
Key tidak ada di Hash Map
COMPLEXITY
O(1) avgHash Map lookup