bitcoinj-core 0.17-beta1 API
Packages
Package
Description
The
base package provides foundational types for bitcoinj.The core package contains classes for network messages like
Block and
Transaction, peer connectivity via PeerGroup,
and block chain management.The crypto package contains classes that work with key derivation algorithms like scrypt (passwords to AES keys),
BIP 32 hierarchies (chains of keys from a root seed), X.509 utilities for the payment protocol and other general
cryptography tasks.
High level wrapper APIs around the bitcoinj building blocks.
Classes handling low level network management using either NIO (async io) or older style blocking sockets (useful for
using SOCKS proxies, Tor, SSL etc).
Classes that know how to discover peers in the P2P network using DNS or HTTP.
Network parameters encapsulate some of the differences between different Bitcoin networks such as the main
network, the testnet, regtest mode, unit testing params and so on.
The BIP70 payment protocol wraps Bitcoin transactions and adds various useful features like memos, refund addresses
and authentication.
Classes for working with and executing Bitcoin script programs, as embedded in inputs and outputs.
Transaction signers know how to calculate signatures over transactions in different contexts, for example, using
local private keys or fetching them from remote servers.
Block stores persist blockchain data downloaded from remote peers.
Parsing and handling of bitcoin: textual URIs as found in qr codes and web links.
Formatting monetary amounts, representing exchange rates, a program for loading Bitcoin Core saved block files,
a class to control how bitcoinj uses threads and misc other utility classes that don't fit anywhere else.
Classes that support the
Wallet, which knows how to find and save transactions relevant to
a set of keys or scripts, calculate balances, and spend money: the wallet has many features and can be extended
in various ways, please refer to the website for documentation on how to use it.