com.r3corda.protocols / FetchAttachmentsProtocol

FetchAttachmentsProtocol

class FetchAttachmentsProtocol : FetchDataProtocol<Attachment, ByteArray>

Given a set of hashes either loads from from local storage or requests them from the other peer. Downloaded attachments are saved to local storage automatically.

Constructors

<init>

FetchAttachmentsProtocol(requests: Set<SecureHash>, otherSide: Party)

Given a set of hashes either loads from from local storage or requests them from the other peer. Downloaded attachments are saved to local storage automatically.

Properties

topic

val topic: String

The topic to use when communicating with other parties. If more than one topic is required then use sub-protocols. Note that this is temporary until protocol sessions are properly implemented.

Inherited Properties

otherSide	`val otherSide: Party`
requests	`val requests: Set<SecureHash>`

Functions

convert	`fun convert(wire: ByteArray): Attachment`
load	`fun load(txid: SecureHash): Attachment?`
maybeWriteToDisk	`fun maybeWriteToDisk(downloaded: List<Attachment>): Unit`

Inherited Functions

call	`open fun call(): Result<T>` This is where you fill out your business logic.

Companion Object Properties

TOPIC const val TOPIC: String