com.r3corda.protocols / FetchTransactionsProtocol

FetchTransactionsProtocol

class FetchTransactionsProtocol : FetchDataProtocol<SignedTransaction, SignedTransaction>

Given a set of tx hashes (IDs), either loads them from local disk or asks the remote peer to provide them.

A malicious response in which the data provided by the remote peer does not hash to the requested hash results in FetchDataProtocol.DownloadedVsRequestedDataMismatch being thrown. If the remote peer doesnt have an entry, it results in a FetchDataProtocol.HashNotFound exception. Note that returned transactions are not inserted into the database, because its up to the caller to actually verify the transactions are valid.





Constructors

<init> FetchTransactionsProtocol(requests: Set<SecureHash>, otherSide: Party)

Given a set of tx hashes (IDs), either loads them from local disk or asks the remote peer to provide them.

Inherited Properties

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

Functions

load fun load(txid: SecureHash): SignedTransaction?

Inherited Functions

call open fun call(): Result<T>

This is where you fill out your business logic.