Represents a supplier of CurrencyUnit-valued results. This is the CurrencyUnit-producing specialization of Supplier (as in Java 8).

There is no requirement that a distinct result be returned each time the supplier is invoked.

This is a functional interface whose functional method is getCurrency(). This class does not extend java.util.function.Supplier since javax.money.MonetaryAmount implements both supplier interfaces, javax.money.NumberSupplier and javax.money.CurrencySupplier, which will lead to method name conflicts.