com.r3corda.contracts.asset / Obligation

Obligation

class Obligation<P> : ClauseVerifier

An obligation contract commits the obligor to delivering a specified amount of a fungible asset (for example the Cash contract) at a specified future point in time. Settlement transactions may split and merge contracts across multiple input and output states. The goal of this design is to handle amounts owed, and these contracts are expected to be netted/merged, with settlement only for any remainder amount.

Parameters

P - the product the obligation is for payment of.


Types

Clauses interface Clauses
Commands interface Commands : Commands
Lifecycle enum class Lifecycle

Represents where in its lifecycle a contract state is, which in turn controls the commands that can be applied to the state. Most states will not leave the NORMAL lifecycle. Note that settled (as an end lifecycle) is represented by absence of the state on transaction output.

State data class State<P> : FungibleAsset<Terms<P>>, NettableState<State<P>, MultilateralNetState<P>>

A state representing the obligation of one party (obligor) to deliver a specified number of units of an underlying asset (described as token.acceptableIssuedProducts) to the beneficiary no later than the specified time.

Terms data class Terms<P>

Subset of state, containing the elements specified when issuing a new settlement contract.

Constructors

<init> Obligation()

An obligation contract commits the obligor to delivering a specified amount of a fungible asset (for example the Cash contract) at a specified future point in time. Settlement transactions may split and merge contracts across multiple input and output states. The goal of this design is to handle amounts owed, and these contracts are expected to be netted/merged, with settlement only for any remainder amount.

Properties

clauses val clauses: <ERROR CLASS>
legalContractReference val legalContractReference: SecureHash

TODO:

Functions

extractCommands fun extractCommands(tx: TransactionForContract): List<AuthenticatedObject<Commands>>
generateCloseOutNetting fun generateCloseOutNetting(tx: TransactionBuilder, signer: PublicKey, vararg states: State<P>): Unit

Generate a transaction performing close-out netting of two or more states.

generateExit fun generateExit(tx: TransactionBuilder, amountIssued: Amount<Issued<Terms<P>>>, changeKey: PublicKey, assetStates: List<StateAndRef<State<P>>>): PublicKey

Generate an transaction exiting an obligation from the ledger.

generateIssue fun generateIssue(tx: TransactionBuilder, obligor: Party, issuanceDef: Terms<P>, pennies: Long, beneficiary: PublicKey, notary: Party): Unit

Puts together an issuance transaction for the specified amount that starts out being owned by the given pubkey.

generatePaymentNetting fun generatePaymentNetting(tx: TransactionBuilder, issued: Issued<Terms<P>>, notary: Party, vararg states: State<P>): Unit
generateSetLifecycle fun generateSetLifecycle(tx: TransactionBuilder, statesAndRefs: List<StateAndRef<State<P>>>, lifecycle: Lifecycle, notary: Party): Unit

Generate a transaction changing the lifecycle of one or more state objects.

generateSettle fun generateSettle(tx: TransactionBuilder, statesAndRefs: Iterable<StateAndRef<State<P>>>, assetStatesAndRefs: Iterable<StateAndRef<FungibleAsset<P>>>, moveCommand: MoveCommand, notary: Party): Unit

Inherited Functions

verify open fun verify(tx: TransactionForContract): Unit

Takes an object that represents a state transition, and ensures the inputs/outputs/commands make sense. Must throw an exception if theres a problem that should prevent state transition. Takes a single object rather than an argument so that additional data can be added without breaking binary compatibility with existing contract code.