Type Members

1.  sealed abstract case class AcsCommitment extends HasProtocolVersionedWrapper[AcsCommitment] with SignedProtocolMessageContent with NoCopy with Product with Serializable

   A commitment to the active contract set (ACS) that is shared between two participants on a given synchronizer at a given time.

   A commitment to the active contract set (ACS) that is shared between two participants on a given synchronizer at a given time.

   Given a commitment scheme to the ACS, the semantics are as follows: the sender declares that the shared ACS was exactly the one committed to, at every commitment tick during the specified period and as determined by the period's interval.

   The interval is assumed to be a round number of seconds. The ticks then start at the Java EPOCH time, and are exactly interval apart.

2.  final case class AssignmentMediatorMessage(tree: AssignmentViewTree, submittingParticipantSignature: Signature)(representativeProtocolVersion: RepresentativeProtocolVersion[AssignmentMediatorMessage.type]) extends ReassignmentMediatorMessage with Product with Serializable

   Message sent to the mediator as part of an assignment request

   Message sent to the mediator as part of an assignment request

   tree

   The assignment view tree blinded for the mediator

   Exceptions thrown

   java.lang.IllegalArgumentException if the common data is blinded or the view is not blinded

3.  final case class CommitmentPeriod(fromExclusive: CantonTimestampSecond, periodLength: PositiveSeconds) extends PrettyPrinting with Product with Serializable
4.  sealed trait CommitmentPeriodState extends Product with Serializable with PrettyPrinting
5.  case class ConfirmationResponse extends PrettyPrinting with Product with Serializable

   Payload of a response sent to the mediator in reaction to a confirmation request.

   Payload of a response sent to the mediator in reaction to a confirmation request.

   Annotations

   @SuppressWarnings()

6.  final case class ConfirmationResponses extends SignedProtocolMessageContent with HasProtocolVersionedWrapper[ConfirmationResponses] with HasSynchronizerId with PrettyPrinting with Product with Serializable

   Aggregates multiple confirmation responses to be sent to the mediator in reaction to a confirmation request.

7.  case class ConfirmationResultMessage extends ProtocolVersionedMemoizedEvidence with HasSynchronizerId with HasRequestId with SignedProtocolMessageContent with HasProtocolVersionedWrapper[ConfirmationResultMessage] with PrettyPrinting with Product with Serializable

   Result message that the mediator sends to all informees of a request with its verdict.

   Result message that the mediator sends to all informees of a request with its verdict.

   Annotations

   @SuppressWarnings()

8.  type DefaultOpenEnvelope = OpenEnvelope[ProtocolMessage]
9.  final case class DeliveredUnassignmentResult extends PrettyPrinting with Product with Serializable

   Invariants:

   Invariants:

   • Deliver event contains exactly one protocol message with viewType == UnassignmentViewType
   • Verdict of this event is Approve
10.  sealed trait EncryptedView[+VT <: ViewType] extends Product with Serializable

    An encrypted com.digitalasset.canton.data.ViewTree together with its com.digitalasset.canton.data.ViewType.

    An encrypted com.digitalasset.canton.data.ViewTree together with its com.digitalasset.canton.data.ViewType. The correspondence is encoded via a path-dependent type. The type parameter VT exposes a upper bound on the type of view types that may be contained.

    The view tree is compressed before encryption.

11.  final case class EncryptedViewMessage[+VT <: ViewType](submittingParticipantSignature: Option[Signature], viewHash: ViewHash, sessionKeys: NonEmpty[Seq[AsymmetricEncrypted[SecureRandomness]]], encryptedView: EncryptedView[VT], synchronizerId: SynchronizerId, viewEncryptionScheme: SymmetricKeyScheme)(representativeProtocolVersion: RepresentativeProtocolVersion[EncryptedViewMessage.type]) extends UnsignedProtocolMessage with Product with Serializable

    An encrypted view message.

    An encrypted view message.

    See https://engineering.da-int.net/docs/platform-architecture-handbook/arch/canton/tx-data-structures.html#transaction-hashes-and-views The view message encrypted with symmetric key that is derived from the view's randomness.

    viewHash

    Transaction view hash in plain text - included such that the recipient can prove to a 3rd party that it has correctly decrypted the viewTree

    sessionKeys

    a sequence of encrypted random values to each recipient of the view. These values are encrypted and are used to derive the symmetric session key for the view. Instead of sending a crypto.SymmetricKey, which could cause formatting issues (e.g. different participants with different providers and, therefore, different key formats), we send an encrypted crypto.SecureRandomness.

12.  sealed trait EncryptedViewMessageError extends Product with Serializable with PrettyPrinting
13.  final case class EnvelopeContent(message: UnsignedProtocolMessage)(representativeProtocolVersion: RepresentativeProtocolVersion[EnvelopeContent.type]) extends HasProtocolVersionedWrapper[EnvelopeContent] with Product with Serializable
14.  trait HasRequestId extends AnyRef
15.  trait HasSynchronizerId extends AnyRef
16.  case class InformeeMessage(fullInformeeTree: FullInformeeTree, submittingParticipantSignature: Signature)(protocolVersion: ProtocolVersion) extends MediatorConfirmationRequest with UnsignedProtocolMessage with Product with Serializable

    The informee message to be sent to the mediator.

    The informee message to be sent to the mediator.

    Annotations

    @SuppressWarnings()

17.  final case class LocalApprove()(representativeProtocolVersion: RepresentativeProtocolVersion[LocalVerdict.type]) extends LocalVerdict with Product with Serializable
18.  final case class LocalReject(reason: Status, isMalformed: Boolean)(representativeProtocolVersion: RepresentativeProtocolVersion[LocalVerdict.type]) extends LocalVerdict with TransactionRejection with PrettyPrinting with Product with Serializable
19.  sealed trait LocalVerdict extends Product with Serializable with PrettyPrinting with HasProtocolVersionedWrapper[LocalVerdict]

    Possible verdicts on a transaction request from the participant's perspective.

    Possible verdicts on a transaction request from the participant's perspective. The verdict can be LocalApprove or LocalReject. The verdict LocalReject includes a reason pointing out which checks in Phase 3 have failed, and a flag isMalformed indicating whether the rejection occurs due to malicious behavior.

20.  trait MediatorConfirmationRequest extends UnsignedProtocolMessage
21.  trait ProtocolMessage extends Product with Serializable with HasSynchronizerId with PrettyPrinting with HasRepresentativeProtocolVersion

    Parent trait of messages that are sent through the sequencer

22.  trait ReassignmentMediatorMessage extends MediatorConfirmationRequest with UnsignedProtocolMessage

    Message sent to the mediator as part of an unassignment or assignment request

    Message sent to the mediator as part of an unassignment or assignment request

    Exceptions thrown

    java.lang.IllegalArgumentException if the common data is blinded or the view is not blinded

23.  final case class ReceivedAcsCommitment(synchronizerId: SynchronizerId, interval: CommitmentPeriod, originCounterParticipant: ParticipantId, receivedCommitment: Option[HashedCommitmentType], ownCommitment: Option[HashedCommitmentType], state: CommitmentPeriodState) extends Product with Serializable
24.  final case class RootHashMessage[+Payload <: RootHashMessagePayload](rootHash: RootHash, synchronizerId: SynchronizerId, viewType: ViewType, submissionTopologyTimestamp: CantonTimestamp, payload: Payload)(representativeProtocolVersion: RepresentativeProtocolVersion[RootHashMessage.type]) extends UnsignedProtocolMessage with PrettyPrinting with Product with Serializable

    One root hash message is sent for each participant involved in a mediator confirmation request that requires root hash messages.

    One root hash message is sent for each participant involved in a mediator confirmation request that requires root hash messages. The root hash message is delivered to the participant and the mediator. The mediator checks that it receives the right root hash messages and that they all contain the root hash that the mediator confirmation request message specifies. The mediator also checks that all payloads have the same serialization and, if it can parse the mediator confirmation request envelope, that the payload fits to the mediator confirmation request.

25.  trait RootHashMessagePayload extends PrettyPrinting with HasCryptographicEvidence

    Payloads of RootHashMessage

26.  final case class SentAcsCommitment(synchronizerId: SynchronizerId, interval: CommitmentPeriod, counterParticipant: ParticipantId, sentCommitment: Option[HashedCommitmentType], counterCommitment: Option[HashedCommitmentType], state: ValidSentPeriodState) extends Product with Serializable
27.  final case class SerializedRootHashMessagePayload(bytes: ByteString) extends RootHashMessagePayload with Product with Serializable
28.  final case class SetTrafficPurchasedMessage extends ProtocolVersionedMemoizedEvidence with HasProtocolVersionedWrapper[SetTrafficPurchasedMessage] with PrettyPrinting with SignedProtocolMessageContent with Product with Serializable
29.  case class SignedProtocolMessage[+M <: SignedProtocolMessageContent](typedMessage: TypedSignedProtocolMessageContent[M], signatures: NonEmpty[Seq[Signature]])(representativeProtocolVersion: RepresentativeProtocolVersion[SignedProtocolMessage.type]) extends ProtocolMessage with HasProtocolVersionedWrapper[SignedProtocolMessage[SignedProtocolMessageContent]] with Product with Serializable

    There can be any number of signatures.

    There can be any number of signatures. Every signature covers the serialization of the typedMessage and needs to be valid.

    Annotations

    @SuppressWarnings()

30.  trait SignedProtocolMessageContent extends ProtocolVersionedMemoizedEvidence with HasSynchronizerId with PrettyPrinting with Product with Serializable
31.  final case class SynchronizerSearchCommitmentPeriod(indexedSynchronizer: IndexedSynchronizer, fromExclusive: CantonTimestamp, toInclusive: CantonTimestamp) extends PrettyPrinting with Product with Serializable
32.  final case class TopologyTransactionsBroadcast(synchronizerId: SynchronizerId, transactions: SignedTopologyTransactions[TopologyChangeOp, TopologyMapping])(representativeProtocolVersion: RepresentativeProtocolVersion[TopologyTransactionsBroadcast.type]) extends UnsignedProtocolMessage with Product with Serializable
33.  final case class TransactionConfirmationRequest(informeeMessage: InformeeMessage, viewEnvelopes: Seq[OpenEnvelope[TransactionViewMessage]], protocolVersion: ProtocolVersion) extends PrettyPrinting with HasLoggerName with Product with Serializable

    Represents the confirmation request for a transaction as sent from a participant node to the sequencer.

34.  trait TransactionRejection extends AnyRef
35.  type TransactionViewMessage = EncryptedViewMessage[TransactionViewType]
36.  case class TypedSignedProtocolMessageContent[+M <: SignedProtocolMessageContent] extends HasProtocolVersionedWrapper[TypedSignedProtocolMessageContent[SignedProtocolMessageContent]] with ProtocolVersionedMemoizedEvidence with Product with Serializable

    Annotations

    @SuppressWarnings()

37.  final case class UnassignmentMediatorMessage(tree: UnassignmentViewTree, submittingParticipantSignature: Signature)(representativeProtocolVersion: RepresentativeProtocolVersion[UnassignmentMediatorMessage.type]) extends ReassignmentMediatorMessage with Product with Serializable

    Message sent to the mediator as part of an unassignment request

    Message sent to the mediator as part of an unassignment request

    tree

    The unassignment view tree blinded for the mediator

    Exceptions thrown

    java.lang.IllegalArgumentException if the common data is blinded or the view is not blinded

38.  trait UnsignedProtocolMessage extends ProtocolMessage

    Marker trait for ProtocolMessages that are not a SignedProtocolMessage

39.  sealed trait ValidSentPeriodState extends CommitmentPeriodState
40.  sealed trait Verdict extends Product with Serializable with PrettyPrinting with HasProtocolVersionedWrapper[Verdict]

    Verdicts sent from the mediator to the participants inside the ConfirmationResultMessage