com.r3corda.core.testing / InMemoryVaultService

InMemoryVaultService

open class InMemoryVaultService : SingletonSerializeAsToken, VaultService

This class implements a simple, in memory vault that tracks states that are owned by us, and also has a convenience method to auto-generate some self-issued cash states that can be used for test trading. A real vault would persist states relevant to us into a database and once such a vault is implemented, this scaffolding can be removed.



Types

InnerState class InnerState

Constructors

<init> InMemoryVaultService(services: ServiceHub)

This class implements a simple, in memory vault that tracks states that are owned by us, and also has a convenience method to auto-generate some self-issued cash states that can be used for test trading. A real vault would persist states relevant to us into a database and once such a vault is implemented, this scaffolding can be removed.

Properties

currentVault open val currentVault: Vault

Returns a read-only snapshot of the vault at the time the call is made. Note that if you consume states or keys in this vault, you must inform the vault service so it can update its internal state.

linearHeads open val linearHeads: Map<UniqueIdentifier, StateAndRef<LinearState>>

Returns a snapshot of the heads of LinearStates.

log open val log: <ERROR CLASS>
mutex val mutex: ThreadBox<InnerState>
services val services: ServiceHub
updates open val updates: <ERROR CLASS><Update>

Get a synchronous Observable of updates. When observations are pushed to the Observer, the Vault will already incorporate the update.

Functions

notifyAll open fun notifyAll(txns: Iterable<WireTransaction>): Vault

Possibly update the vault by marking as spent states that these transactions consume, and adding any relevant new states that they create. You should only insert transactions that have been successfully verified here

track open fun track(): <ERROR CLASS><Vault, <ERROR CLASS><Update>>

Atomically get the current vault and a stream of updates. Note that the Observable buffers updates until the first subscriber is registered so as to avoid racing with early updates.

Inherited Functions

linearHeadsOfType_ open fun <T : LinearState> linearHeadsOfType_(stateType: Class<T>): Map<UniqueIdentifier, StateAndRef<T>>

Returns the linearHeads only when the type of the state would be considered an instanceof the given type.

notify open fun notify(tx: WireTransaction): Vault

Same as notifyAll but with a single transaction.

statesForRefs open fun statesForRefs(refs: List<StateRef>): Map<StateRef, TransactionState<*>?>
toToken open fun toToken(context: SerializeAsTokenContext): SerializationToken
whenConsumed open fun whenConsumed(ref: StateRef): <ERROR CLASS><Update>

Provide a Future for when a StateRef is consumed, which can be very useful in building tests.

Extension Functions

dealsWith fun <T : DealState> VaultService.dealsWith(party: Party): <ERROR CLASS>
linearHeadsOfType fun <T : LinearState> VaultService.linearHeadsOfType(): <ERROR CLASS>