Uses of Class
com.privatechain.core.model.Transaction

Packages that use Transaction

Package	Description
com.privatechain.consensus	Built-in ConsensusEngine implementations for the private-blockchain library.
com.privatechain.consensus.pbft	Practical Byzantine Fault Tolerance (PBFT) consensus engine (FR-CONS-04, NFR-REL-03).
com.privatechain.consensus.poa	Proof of Authority (PoA) consensus engine — accepts blocks only from a configured set of authorized signer addresses (FR-CONS-03, AC-02).
com.privatechain.consensus.pow	Proof of Work (PoW) consensus engine — SHA-256 hash mining with configurable difficulty (FR-CONS-02, AC-03).
com.privatechain.consensus.roundrobin	Round-Robin consensus engine — deterministic slot-based block production for development and testing (FR-CONS-05).
com.privatechain.core.builder	Assembly layer — the single location where all library modules are composed.
com.privatechain.core.event	Sealed event hierarchy and the asynchronous publish-subscribe event bus.
com.privatechain.core.exception	Unchecked exception hierarchy rooted at BlockchainException.
com.privatechain.core.mempool	In-memory transaction pool with pluggable prioritization and TTL eviction.
com.privatechain.core.model	Immutable domain objects — the fundamental data model of the private-blockchain library.
com.privatechain.core.spi	Service Provider Interfaces (SPIs) — the primary extension points of the library.
com.privatechain.examples.spring	Spring Boot REST demo — exposes a running BlockchainNode as an HTTP API using Spring Boot 4.x autoconfiguration (T-075, AC-10).
com.privatechain.network.gossip	Transaction gossip and block broadcast — propagates newly submitted transactions and mined blocks to connected peers (FR-NET-02, FR-NET-03).
com.privatechain.network.rpc	Netty TCP server, client, and NDJSON message codec — the transport layer of the P2P networking stack (FR-NET-01, ADR-001).
com.privatechain.wallet	Wallet and key management — secp256k1 key pairs, transaction signing, balance computation, and encrypted keystore serialisation (FR-WALLET-01–04).

Uses of Transaction in com.privatechain.consensus

Method parameters in com.privatechain.consensus with type arguments of type Transaction

Modifier and Type	Method	Description
static Block	ConsensusSupport.buildBlock(Block previousBlock, List<Transaction> transactions, int bits, long nonce, String minerAddress, Instant timestamp)	Builds a canonical block from consensus-specific inputs.
static String	ConsensusSupport.merkleRoot(List<Transaction> transactions)	Computes the canonical Merkle root for the supplied transactions.

Uses of Transaction in com.privatechain.consensus.pbft

Method parameters in com.privatechain.consensus.pbft with type arguments of type Transaction

Modifier and Type	Method	Description
Block	PBFTEngine.mineBlock(List<Transaction> transactions, Block previousBlock)	Produces a new block using the deterministic PBFT leader for the current view.

Uses of Transaction in com.privatechain.consensus.poa

Method parameters in com.privatechain.consensus.poa with type arguments of type Transaction

Modifier and Type	Method	Description
Block	ProofOfAuthorityEngine.mineBlock(List<Transaction> transactions, Block previousBlock)	Builds a new authority-signed block using the first authorized miner address.

Uses of Transaction in com.privatechain.consensus.pow

Method parameters in com.privatechain.consensus.pow with type arguments of type Transaction

Modifier and Type	Method	Description
Block	ProofOfWorkEngine.mineBlock(List<Transaction> transactions, Block previousBlock)	Mines a new block by searching for a nonce that satisfies the configured leading-zero-bit target.

Uses of Transaction in com.privatechain.consensus.roundrobin

Method parameters in com.privatechain.consensus.roundrobin with type arguments of type Transaction

Modifier and Type	Method	Description
Block	RoundRobinEngine.mineBlock(List<Transaction> transactions, Block previousBlock)	Produces a new block for the next round-robin slot.

Uses of Transaction in com.privatechain.core.builder

Methods in com.privatechain.core.builder with parameters of type Transaction

Modifier and Type	Method	Description
void	BlockchainNode.submitTransaction(Transaction transaction)	Validates and submits a transaction through the configured validator chain.

Uses of Transaction in com.privatechain.core.event

Methods in com.privatechain.core.event that return Transaction

Modifier and Type	Method	Description
Transaction	BlockchainEvent.TransactionSubmittedEvent.getTransaction()	Returns the transaction that was submitted to the mempool.

Constructors in com.privatechain.core.event with parameters of type Transaction

Modifier	Constructor	Description
	TransactionSubmittedEvent(Transaction transaction)	Constructs a TransactionSubmittedEvent.

Uses of Transaction in com.privatechain.core.exception

Methods in com.privatechain.core.exception that return Transaction

Modifier and Type	Method	Description
Transaction	TransactionValidationException.getTransaction()	Returns the transaction that failed validation.

Constructors in com.privatechain.core.exception with parameters of type Transaction

Modifier	Constructor	Description
	TransactionValidationException(String message, ValidationResult validationResult, Transaction transaction)	Constructs a TransactionValidationException.

Uses of Transaction in com.privatechain.core.mempool

Methods in com.privatechain.core.mempool that return types with arguments of type Transaction

Modifier and Type	Method	Description
List<Transaction>	TransactionMempool.getTopN(int n)	Returns the top n transactions ordered by the configured prioritizer.

Methods in com.privatechain.core.mempool with parameters of type Transaction

Modifier and Type	Method	Description
int	FeeBasedPrioritizer.compare(Transaction t1, Transaction t2)	Compares two transactions by fee in descending order.
int	TimestampBasedPrioritizer.compare(Transaction t1, Transaction t2)	Compares two transactions by their submission timestamps.
boolean	TransactionMempool.submit(Transaction transaction)	Submits a transaction to the pool without pre-validation.
MempoolSubmissionResult	TransactionMempool.submitWithValidation(Transaction transaction, Blockchain chain)	Validates and submits a transaction using the configured TransactionValidator.

Uses of Transaction in com.privatechain.core.model

Methods in com.privatechain.core.model that return types with arguments of type Transaction

Modifier and Type	Method	Description
List<Transaction>	Block.getTransactions()	Returns the ordered, immutable list of transactions in this block.

Method parameters in com.privatechain.core.model with type arguments of type Transaction

Modifier and Type	Method	Description
Block.Builder	Block.Builder.transactions(List<Transaction> transactions)	Sets the transaction list for this block.

Constructor parameters in com.privatechain.core.model with type arguments of type Transaction

Modifier	Constructor	Description
	Block(int index, BlockHeader header, String previousHash, String hash, List<Transaction> transactions, String minerAddress)	Constructs a fully formed, immutable block.

Uses of Transaction in com.privatechain.core.spi

Methods in com.privatechain.core.spi with parameters of type Transaction

Modifier and Type	Method	Description
int	TransactionPrioritizer.compare(Transaction t1, Transaction t2)	Compares two transactions to determine their relative priority.
ValidationResult	TransactionValidator.validate(Transaction tx, Blockchain chain)	Validates a single transaction against the current chain state.

Method parameters in com.privatechain.core.spi with type arguments of type Transaction

Modifier and Type	Method	Description
Block	ConsensusEngine.mineBlock(List<Transaction> transactions, Block previousBlock)	Produces a new candidate block from the given transactions and the current chain tip.

Uses of Transaction in com.privatechain.examples.spring

Subclasses of Transaction in com.privatechain.examples.spring

Modifier and Type	Class	Description
static final class	BlockchainRestController.PaymentTransaction	Simple payment transaction used by the REST demo.

Uses of Transaction in com.privatechain.network.gossip

Methods in com.privatechain.network.gossip with parameters of type Transaction

Modifier and Type	Method	Description
void	GossipProtocol.gossip(Transaction transaction, String originSenderId)	Gossips a transaction to ⌈log₂(n)⌉ randomly selected connected peers.

Uses of Transaction in com.privatechain.network.rpc

Methods in com.privatechain.network.rpc that return Transaction

Modifier and Type	Method	Description
Transaction	MessageCodec.extractTransaction(MessageCodec.NetworkMessage message)	Extracts and deserializes a Transaction from the payload of a TRANSACTION message.

Methods in com.privatechain.network.rpc with parameters of type Transaction

Modifier and Type	Method	Description
MessageCodec.NetworkMessage	MessageCodec.transactionMessage(String senderId, Transaction transaction)	Creates a TRANSACTION message carrying the given transaction.

Uses of Transaction in com.privatechain.wallet

Methods in com.privatechain.wallet that return Transaction

Modifier and Type	Method	Description
Transaction	Wallet.sign(Transaction transaction)	Signs a transaction with this wallet's private key.

Methods in com.privatechain.wallet with parameters of type Transaction

Modifier and Type	Method	Description
Transaction	Wallet.sign(Transaction transaction)	Signs a transaction with this wallet's private key.