net.corda.contracts.clause / AbstractConserveAmount

AbstractConserveAmount

abstract class AbstractConserveAmount<S : FungibleAsset<T>, C : CommandData, T : Any> : Clause<S, C, Issued<T>>

Standardised clause for checking input/output balances of fungible assets. Requires that a Move command is provided, and errors if absent. Must be the last clause under a grouping clause; errors on no-match, ends on match.



Constructors

<init> AbstractConserveAmount()

Standardised clause for checking input/output balances of fungible assets. Requires that a Move command is provided, and errors if absent. Must be the last clause under a grouping clause; errors on no-match, ends on match.

Inherited Properties

requiredCommands open val requiredCommands: Set<Class<out CommandData>>

Determine whether this clause runs or not

Functions

generateExit fun generateExit(tx: TransactionBuilder, amountIssued: Amount<Issued<T>>, assetStates: List<StateAndRef<S>>, deriveState: (TransactionState<S>, Amount<Issued<T>>, PublicKey) -> TransactionState<S>, generateMoveCommand: () -> CommandData, generateExitCommand: (Amount<Issued<T>>) -> CommandData): PublicKey

Generate an transaction exiting fungible assets from the ledger.

toString open fun toString(): String
verify open fun verify(tx: TransactionForContract, inputs: List<S>, outputs: List<S>, commands: List<AuthenticatedObject<C>>, groupingKey: Issued<T>?): Set<C>

Verify the transaction matches the conditions from this clause. For example, a "no zero amount output" clause would check each of the output states that it applies to, looking for a zero amount, and throw IllegalStateException if any matched.

Extension Functions

matches fun <C : CommandData> Clause<*, C, *>.matches(commands: List<AuthenticatedObject<C>>): Boolean

Determine if the given list of commands matches the required commands for a clause to trigger.

Inheritors

ConserveAmount class ConserveAmount : AbstractConserveAmount<State, Commands, Currency>
ConserveAmount class ConserveAmount : AbstractConserveAmount<State, Commands, Commodity>

Standard clause for conserving the amount from input to output.

ConserveAmount class ConserveAmount<P> : AbstractConserveAmount<State<P>, Commands, Terms<P>>

Generic move/exit clause for fungible assets