net.corda.core.flows

Class AbstractStateReplacementFlow.Acceptor<T>

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

net.corda.core.flows.AbstractStateReplacementFlow.Acceptor<T>

Enclosing class:

AbstractStateReplacementFlow

public static class AbstractStateReplacementFlow.Acceptor<T>
extends FlowLogic<T>

Field Detail

Companion

public static net.corda.core.flows.AbstractStateReplacementFlow.Acceptor.Companion Companion

Constructor Detail

Acceptor

public Acceptor(@NotNull
                FlowSession initiatingSession,
                @NotNull
                ProgressTracker progressTracker)

Parameters:

progressTracker -

Override this to provide a class ProgressTracker. If one is provided and stepped, the framework will do something helpful with the progress reports e.g record to the audit service. If this flow is invoked as a subflow of another, then the tracker will be made a child of the current step in the parent. If it's null, this flow doesn't track progress.

Note that this has to return a tracker before the flow is invoked. You can't change your mind half way through.

Acceptor

public Acceptor(@NotNull
                FlowSession initiatingSession)

Method Detail

call

@Suspendable
 @Nullable
public java.lang.Void call()

This is where you fill out your business logic.

verifyProposal

protected void verifyProposal(@NotNull
                              SignedTransaction stx,
                              @NotNull
                              net.corda.core.flows.AbstractStateReplacementFlow.Proposal<? extends T> proposal)

Check the state change proposal and the signed transaction to confirm that it's acceptable to this node. Rules for verification depend on the change proposed, and may further depend on the node itself (for example configuration). The proposal is returned if acceptable, otherwise a exception StateReplacementException is thrown.

See Also:

exception StateReplacementException

getInitiatingSession

@NotNull
public FlowSession getInitiatingSession()

getProgressTracker

@NotNull
public ProgressTracker getProgressTracker()

Override this to provide a class ProgressTracker. If one is provided and stepped, the framework will do something helpful with the progress reports e.g record to the audit service. If this flow is invoked as a subflow of another, then the tracker will be made a child of the current step in the parent. If it's null, this flow doesn't track progress.

Note that this has to return a tracker before the flow is invoked. You can't change your mind half way through.

See Also:

class ProgressTracker