Uses of Package
com.privatechain.core.model

Packages that use com.privatechain.core.model

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.network.sync	Chain synchronization and fork resolution — brings a node's local chain up to date with the network on startup and after a network partition (FR-NET-04, FR-NET-05).
com.privatechain.storage	BlockchainStorage implementations and chain export utilities for the private-blockchain library.
com.privatechain.storage.fs	File-system storage backend — persists each block as an individual JSON file in a configurable directory (FR-STOR-05).
com.privatechain.storage.leveldb	LevelDB persistent storage backend — crash-safe block persistence via the leveldbjni native library (FR-STOR-03, NFR-REL-01).
com.privatechain.storage.memory	In-memory storage backend — ephemeral, zero-dependency block storage backed by a LinkedHashMap (FR-STOR-02).
com.privatechain.storage.rocksdb	RocksDB persistent storage backend — high-throughput block persistence via the rocksdbjni native library (FR-STOR-04).
com.privatechain.wallet	Wallet and key management — secp256k1 key pairs, transaction signing, balance computation, and encrypted keystore serialisation (FR-WALLET-01–04).

Classes in com.privatechain.core.model used by com.privatechain.consensus

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).
Transaction	Abstract base class for all blockchain transactions.

Classes in com.privatechain.core.model used by com.privatechain.consensus.pbft

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).
Transaction	Abstract base class for all blockchain transactions.

Classes in com.privatechain.core.model used by com.privatechain.consensus.poa

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).
Transaction	Abstract base class for all blockchain transactions.

Classes in com.privatechain.core.model used by com.privatechain.consensus.pow

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).
Transaction	Abstract base class for all blockchain transactions.

Classes in com.privatechain.core.model used by com.privatechain.consensus.roundrobin

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).
Transaction	Abstract base class for all blockchain transactions.

Classes in com.privatechain.core.model used by com.privatechain.core.builder

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).
Transaction	Abstract base class for all blockchain transactions.

Classes in com.privatechain.core.model used by com.privatechain.core.event

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).
Transaction	Abstract base class for all blockchain transactions.

Classes in com.privatechain.core.model used by com.privatechain.core.exception

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).
Transaction	Abstract base class for all blockchain transactions.

Classes in com.privatechain.core.model used by com.privatechain.core.mempool

Class	Description
Transaction	Abstract base class for all blockchain transactions.

Classes in com.privatechain.core.model used by com.privatechain.core.model

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).
Block.Builder	Fluent builder for Block.
BlockHeader	Lightweight, immutable record representing the header of a Block.
BlockHeader.Builder	Fluent builder for BlockHeader.
Transaction	Abstract base class for all blockchain transactions.

Classes in com.privatechain.core.model used by com.privatechain.core.spi

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).
Transaction	Abstract base class for all blockchain transactions.

Classes in com.privatechain.core.model used by com.privatechain.examples.spring

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).
Transaction	Abstract base class for all blockchain transactions.

Classes in com.privatechain.core.model used by com.privatechain.network.gossip

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).
Transaction	Abstract base class for all blockchain transactions.

Classes in com.privatechain.core.model used by com.privatechain.network.rpc

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).
Transaction	Abstract base class for all blockchain transactions.

Classes in com.privatechain.core.model used by com.privatechain.network.sync

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).

Classes in com.privatechain.core.model used by com.privatechain.storage

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).

Classes in com.privatechain.core.model used by com.privatechain.storage.fs

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).

Classes in com.privatechain.core.model used by com.privatechain.storage.leveldb

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).

Classes in com.privatechain.core.model used by com.privatechain.storage.memory

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).

Classes in com.privatechain.core.model used by com.privatechain.storage.rocksdb

Class	Description
Block	Immutable unit of the blockchain containing a list of transactions and a cryptographic link to the previous block (FR-CORE-01).

Classes in com.privatechain.core.model used by com.privatechain.wallet

Class	Description
Transaction	Abstract base class for all blockchain transactions.