com.r3corda.node.services.api / AbstractNodeService

AbstractNodeService

abstract class AbstractNodeService : SingletonSerializeAsToken

Abstract superclass for services that a node can host, which provides helper functions.



Constructors

<init> AbstractNodeService(net: MessagingService, networkMapCache: NetworkMapCache)

Abstract superclass for services that a node can host, which provides helper functions.

Properties

net val net: MessagingService
networkMapCache val networkMapCache: NetworkMapCache

Functions

addMessageHandler fun <Q : ServiceRequestMessage, R : Any> addMessageHandler(topic: String, handler: (Q) -> R, exceptionConsumer: (Message, Exception) -> Unit): Unit

Register a handler for a message topic. In comparison to using net.addMessageHandler() this manages a lot of common boilerplate code. Exceptions are caught and passed to the provided consumer. If you just want a simple acknowledgement response with no content, use com.r3corda.core.messaging.Ack.

fun <Q : ServiceRequestMessage, R : Any> addMessageHandler(topic: String, handler: (Q) -> R): Unit

Register a handler for a message topic. In comparison to using net.addMessageHandler() this manages a lot of common boilerplate code. Exceptions are propagated to the messaging layer. If you just want a simple acknowledgement response with no content, use com.r3corda.core.messaging.Ack.

Inherited Functions

toToken open fun toToken(context: SerializeAsTokenContext): SerializationToken

Inheritors

InMemoryNetworkMapService class InMemoryNetworkMapService : NetworkMapService, AbstractNodeService
NotaryService abstract class NotaryService : AbstractNodeService

A Notary service acts as the final signer of a transaction ensuring two things:

Service class Service : AcceptsFileUpload, AbstractNodeService

The Service that wraps Oracle and handles messages/network interaction/request scrubbing.

Service class Service : AbstractNodeService

A service that monitors the network for requests for changing the notary of a state, and immediately runs the NotaryChangeProtocol if the auto-accept criteria are met.

Service class Service : AbstractNodeService

This class sets up network message handlers for requests from peers for data keyed by hash. It is a piece of simple glue that sits between the network layer and the database layer.