Uses of Package
com.privatechain.core.spi

Packages that use com.privatechain.core.spi

Package	Description
com.privatechain.access.rbac	Role-Based Access Control (RBAC) — assigns and enforces capability roles for each connected node address (FR-AC-02, FR-AC-03).
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.exception	Unchecked exception hierarchy rooted at BlockchainException.
com.privatechain.core.mempool	In-memory transaction pool with pluggable prioritization and TTL eviction.
com.privatechain.core.spi	Service Provider Interfaces (SPIs) — the primary extension points of the library.
com.privatechain.spring	Spring Boot autoconfiguration for the private-blockchain library (FR-CFG-03, AC-10).
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).

Classes in com.privatechain.core.spi used by com.privatechain.access.rbac

Class	Description
BlockchainStorage	Service Provider Interface (SPI) for persistent block storage.

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

Class	Description
ConsensusEngine	Service Provider Interface (SPI) for pluggable consensus algorithms.

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

Class	Description
ConsensusEngine	Service Provider Interface (SPI) for pluggable consensus algorithms.

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

Class	Description
ConsensusEngine	Service Provider Interface (SPI) for pluggable consensus algorithms.

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

Class	Description
ConsensusEngine	Service Provider Interface (SPI) for pluggable consensus algorithms.

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

Class	Description
BlockchainStorage	Service Provider Interface (SPI) for persistent block storage.
ConsensusEngine	Service Provider Interface (SPI) for pluggable consensus algorithms.
TransactionPrioritizer	Service Provider Interface (SPI) for ordering transactions in the mempool.
TransactionValidator	Service Provider Interface (SPI) for pluggable transaction validation logic.

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

Class	Description
ValidationResult	Immutable result returned by TransactionValidator.validate(com.privatechain.core.model.Transaction, com.privatechain.core.builder.Blockchain).

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

Class	Description
TransactionPrioritizer	Service Provider Interface (SPI) for ordering transactions in the mempool.
TransactionValidator	Service Provider Interface (SPI) for pluggable transaction validation logic.

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

Class	Description
ValidationResult	Immutable result returned by TransactionValidator.validate(com.privatechain.core.model.Transaction, com.privatechain.core.builder.Blockchain).
ValidationResult.ValidationStatus	Classification of a transaction validation outcome.

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

Class	Description
ConsensusEngine	Service Provider Interface (SPI) for pluggable consensus algorithms.

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

Class	Description
BlockchainStorage	Service Provider Interface (SPI) for persistent block storage.

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

Class	Description
BlockchainStorage	Service Provider Interface (SPI) for persistent block storage.

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

Class	Description
BlockchainStorage	Service Provider Interface (SPI) for persistent block storage.

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

Class	Description
BlockchainStorage	Service Provider Interface (SPI) for persistent block storage.

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

Class	Description
BlockchainStorage	Service Provider Interface (SPI) for persistent block storage.