ashutoshmeher-r3

public class SampleContractV2 implements UpgradedContract<SampleStateV1, SampleStateV2> {
    // This is used to identify our contract when building a transaction.
    public static final String ID = "corda.samples.upgrades.contracts.v2.SampleContractV2";
    
    @Override
    public void verify(LedgerTransaction tx) {
      // Verify logic goes here
    }

    @NotNull

ashutoshmeher-r3

@NotNull
@Override
public AttachmentConstraint getLegacyContractConstraint() {
    // Return the HashAttachment Constraint of the previous jar. Calculate the SHA256 hash of the jar file.
    return new HashAttachmentConstraint(
      SecureHash.parse("92F25AD232C099F6BD309B0E99E9C7DF6C62A59C8C8CEA96920E23338D1212E8")
    );
}

ashutoshmeher-r3

public class SampleStateV2 implements ContractState {

    private final String field1;
    private final String field2;
    
    // New field introduced in V2
    private final String field3;

    // New fields should be Nullable, so that older states issued with previous could be transacted with the newer version.
    public SampleStateV2(String field1, String field2, @Nullable String field3) {

ashutoshmeher-r3

//Sample Flow version 2
@InitiatingFlow(version = 2)
@StartableByRPC
public class SampleFlow extends FlowLogic<SignedTransaction>{

    private final Party counterparty;
    private final String someData;

    public SampleFlow(Party counterparty , String someData) {
        this.counterparty = counterparty;

ashutoshmeher-r3

public class InsuranceSchemaV1 extends MappedSchema {

    public InsuranceSchemaV1() {
        super(InsuranceSchemaFamily.class, 1, ImmutableList.of(PersistentInsurance.class));
    }
}

ashutoshmeher-r3

@BelongsToContract(InsuranceContract.class)
public class Insurance implements QueryableState {
  
    private final String policyNumber;
    private final long insuredValue;
    private final int duration;
    private final int premium;

    private final Party insurer;
    private final Party insuree;

ashutoshmeher-r3

@NotNull
@Override
public PersistentState generateMappedObject(@NotNull MappedSchema schema) {
    // Check if the schema is supported by the state
    if(schema instanceof InsuranceSchemaV1){
        return new PersistentInsurance(
            this.policyNumber,
            this.insuredValue,
            this.duration,
            this.premium,

ashutoshmeher-r3

@Entity
@Table(name = "INSURANCE_DETAIL")
public class PersistentInsurance extends PersistentState implements Serializable {

    @Column private final String policyNumber;
    @Column private final Long insuredValue;
    @Column private final Integer duration;
    @Column private final Integer premium;

    public PersistentInsurance() {

ashutoshmeher-r3

@CordaSerializable
public class VehicleDetail {

    private final String registrationNumber;
    private final String chasisNumber;
    private final String make;
    private final String model;
    private final String variant;
    private final String color;
    private final String fuelType;

ashutoshmeher-r3

@Entity
@Table(name = "VEHICLE_DETAIL")
public class PersistentVehicle  {

    @Id private final UUID id;
    @Column private final String registrationNumber;
    @Column private final String chasisNumber;
    @Column private final String make;
    @Column private final String model;
    @Column private final String variant;