IssueLandTitleFlow_SI2.java

@InitiatingFlow
@StartableByRPC
public class IssueLandTitleFlow implements Flow<Void>{
  
    // FlowIdentity, IdentityService and NotaryLookupService Injected Here
  
    @CordaInject
    private TransactionBuilderFactory transactionBuilderFactory;
    
    @CordaInject
    private FlowEngine flowEngine;

    @CordaInject
    private FlowMessaging flowMessaging;

    @Override
    @Suspendable
    public Void call() {
       // Code Here to fetch identites as dicuscussed earlier i.e. notary, owner and issuer.
      
       // Build the transaction.
       TransactionBuilder transactionBuilder = transactionBuilderFactory.create()
                .setNotary(notary)
                .addOutputState(landTitleOutputState)
                .addCommand(new LandTitleContract.Commands.Issue(), Arrays.asList(issuer.getOwningKey()));
      
        // Verify that the transaction is valid.
        transactionBuilder.verify();

        // Self Sign the transaction.
        SignedTransaction signedTx = transactionBuilder.sign();
        
        // Notarise and record the transaction
        FlowSession receiverSession = flowMessaging.initiateFlow(landTitleState.getOwner());
        SignedTransaction notarisedTx = flowEngine.subFlow(new FinalityFlow(signedTx, Arrays.asList(receiverSession)));
        
        return null;
    }
}