org.bitcoinj.signers

Class CustomTransactionSigner

java.lang.Object

org.bitcoinj.signers.StatelessTransactionSigner

org.bitcoinj.signers.CustomTransactionSigner

All Implemented Interfaces:

TransactionSigner

Direct Known Subclasses:

KeyChainTransactionSigner

public abstract class CustomTransactionSigner
extends StatelessTransactionSigner

This signer may be used as a template for creating custom multisig transaction signers.

Concrete implementations have to implement getSignature(org.bitcoinj.core.Sha256Hash, java.util.List) method returning a signature and a public key of the keypair used to created that signature. It's up to custom implementation where to locate signatures: it may be a network connection, some local API or something else.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	CustomTransactionSigner.SignatureAndKey

Nested classes/interfaces inherited from interface org.bitcoinj.signers.TransactionSigner

TransactionSigner.MissingSignatureException, TransactionSigner.ProposedTransaction

Constructor Summary

Constructors

Constructor and Description
CustomTransactionSigner()

Method Summary

Modifier and Type	Method and Description
protected abstract CustomTransactionSigner.SignatureAndKey	getSignature(Sha256Hash sighash, List<ChildNumber> derivationPath)
boolean	isReady() Returns true if this signer is ready to be used.
boolean	signInputs(TransactionSigner.ProposedTransaction propTx, KeyBag keyBag) Signs given transaction's inputs.

Methods inherited from class org.bitcoinj.signers.StatelessTransactionSigner

deserialize, serialize

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CustomTransactionSigner

public CustomTransactionSigner()

Method Detail

isReady

public boolean isReady()

Description copied from interface: TransactionSigner

Returns true if this signer is ready to be used.

signInputs

public boolean signInputs(TransactionSigner.ProposedTransaction propTx,
                          KeyBag keyBag)

Description copied from interface: TransactionSigner

Signs given transaction's inputs. Returns true if signer is compatible with given transaction (can do something meaningful with it). Otherwise this method returns false

getSignature

protected abstract CustomTransactionSigner.SignatureAndKey getSignature(Sha256Hash sighash,
                                                                        List<ChildNumber> derivationPath)