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Model "Settlements Example.uml2"

Context: Settlement
Validation Rule "c1"
The settlementCurrency.ccyCode is equal to 'GBP'

Context: Settlement
Validation Rule "d1"
transaction.date is before settlementDate.date

Context: Address
Validation Rule "a1"
At most two of the addressComponents have their type equal to 
AddressComponentType.StreetAddressLine and exactly one of the 
addressComponents has its type equal to AddressComponentType.StreetAddressPostcode

Context: Transaction
Validation Rule "t1"
If the type is equal to 'PURCHASE' then exactly two parties are present

Context: Transaction
Validation Rule "t2"
In each of the parties the role is one of 'BUYER', 'RECEIVER'

Context: Settlement
Validation Rule "s1"
netAmount is equal to (grossAmount - tax) * (1 - discount) 

Context: Settlement
Validation Rule "s2"
discount is greater than or equal to 0 and discount is less than or equal to 1

Context: Transaction
Validation Rule "zero-sum"
If the type is equal to 'SWAP' then the sum of settlements.grossAmount is equal to 0