net.corda.core.flows

Class NotaryChangeFlow<T extends ContractState>

net.corda.core.flows.NotaryChangeFlow<T>

@InitiatingFlow
public class NotaryChangeFlow<T extends ContractState>

A flow to be used for changing a state's Notary. This is required since all input states to a transaction must point to the same notary.

This assembles the transaction for notary replacement and sends out change proposals to all participants of that state. If participants agree to the proposed change, they each sign the transaction. Finally, the transaction containing all signatures is sent back to each participant so they can record it and use the new updated state for future transactions.

Constructor Detail

NotaryChangeFlow

public NotaryChangeFlow(@NotNull
                        StateAndRef<? extends T> originalState,
                        @NotNull
                        Party newNotary,
                        @NotNull
                        ProgressTracker progressTracker)

A flow to be used for changing a state's Notary. This is required since all input states to a transaction must point to the same notary.

This assembles the transaction for notary replacement and sends out change proposals to all participants of that state. If participants agree to the proposed change, they each sign the transaction. Finally, the transaction containing all signatures is sent back to each participant so they can record it and use the new updated state for future transactions.

Method Detail

assembleTx

@NotNull
protected net.corda.core.flows.AbstractStateReplacementFlow.UpgradeTx assembleTx()

Build the upgrade transaction.

Returns:

the transaction