# Two databases, each with its own DataSource, Flyway, EntityManagerFactory and transaction manager


--- the two DataSources (one pool each, configured separately) ---
customersDataSource  pool=customers-pool  max=4  url=jdbc:h2:mem:customers  primary=true
ordersDataSource     pool=orders-pool     max=8  url=jdbc:h2:mem:orders  primary=false

--- Flyway ran once per database, each with its own history ---
customers flyway_schema_history: [1 customer]
orders    flyway_schema_history: [1 purchase order, 2 index customer]

--- what each EntityManagerFactory manages ---
EntityManagerFactory beans: [customersEntityManagerFactory, ordersEntityManagerFactory]
customersEntityManagerFactory    entities=[Customer]
ordersEntityManagerFactory       entities=[PurchaseOrder]

--- transaction managers ---
beans: [customersTransactionManager, ordersTransactionManager]
customersTransactionManager    primary=true
ordersTransactionManager       primary=false

--- save one customer and one order through the two repositories ---
customers database tables: [CUSTOMER, flyway_schema_history]
orders    database tables: [PURCHASE_ORDER, flyway_schema_history]
rows: customers.customer=1  orders.purchase_order=1