corda / net.corda.flows / FetchAttachmentsFlow

FetchAttachmentsFlow

class FetchAttachmentsFlow : FetchDataFlow<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> FetchAttachmentsFlow(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.

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. The returned object will usually be ignored, but can be helpful if this flow is meant to be used as a subflow.