LinearState

interface LinearState : ContractState

A state that evolves by superseding itself, all of which share the common "thread".

This simplifies the job of tracking the current version of certain types of state in e.g. a wallet.

abstract val thread: SecureHash

Unique thread id within the wallets of all parties

contract	`abstract val contract: Contract` An instance of the contract class that will verify this state.
participants	`abstract val participants: List<PublicKey>` A participant is any party that is able to consume this state in a valid transaction.

abstract fun isRelevant(ourKeys: Set<PublicKey>): Boolean

true if this should be tracked by our wallet(s)

hash	`fun ContractState.hash(): SecureHash` Returns the SHA-256 hash of the serialised contents of this state (not cached)

DealState	`interface DealState : LinearState` Interface representing an agreement that exposes various attributes that are common. Implementing it simplifies implementation of general protocols that manipulate many agreement types.
DummyLinearState	`class DummyLinearState : LinearState`