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|Developers: GettingInvolved | [[UsingSVN]] | [[UsingGIT]] | CodeStyle | [[MovingToGit]]||Developers: GettingInvolved | [[UsingSVN]] | [[UsingGIT]] | CodeStyle | [[MovingToGit]] | [[UseClirrWithShade]]|
Welcome to the Apache Commons Wiki
This is the Apache Wiki for the Apache Commons project and is maintained by the Commons community. To edit pages, visit login near the top right corner of any page to create a user profile or to login. Then send a brief request (including your wiki username) to the Commons dev@ list asking to be added to the Contributors Group. You can then edit the pages in this Wiki. Notifications of all changes you make will be sent to the dev@commons mailing list, so we will be aware of your changes and we will happily correct any small mistakes that you might make.
We're a Commons community, dedicated to creating reusable library components in Java. Apache Commons mainly uses Subversion as its version control system, however some components now use Git, and Commons components are available as read-only mirrors on Github.
Bug Reports: Jira
On this wiki:
BeanUtils - Utilities for manipulating java beans, including copying properties, cloning, invoking methods and type conversion.
Betwixt - Services for mapping JavaBeans to XML documents, and vice versa.
Chain - A "Chain of Responsibility" pattern implemention for organizing complex processing flows.
CLI - Command Line Interface library for processing command-line options and arguments.
Codec - General encoding/decoding algorithms. Includes some phonetic encoders, Hex, Base64, and a URL encoder.
Collections - Builds upon the Java Collections Framework of List, Set and Map to provide many more implementations, new collections and abstract base classes.
Configuration - Tools to assist in the reading of configuration/preferences files in various formats
Compress - Defines an API for working with archives and compression formats including but not limited to: tar,gz, ar, cpio, zip and bzip2 files
Daemon - Run (java) applications as windows service or UNIX daemon.
DBCP - Database connection pooling services.
Digester - An XML-to-Java-object mapping utility commonly used for parsing XML configuration files.
Email - Simplify email sending with Java. Built on top of the Java Mail API.
Exec - A Java library to execute external processes from within a Java application
FileUpload - Makes it easy to add robust, high-performance, file upload capability to your servlets and web applications
Functor - Supports functional programming in Java
HttpClient - A framework for working with the client-side of the HTTP protocol.
IO - Utility classes, stream implementations, file filters and endian classes to assist in input/output operations.
JCI - Java Compiler Interface
JEXL - A velocity-esque expression interpreter
Jelly - An XML-based scripting language
JXPath - Facilities for applying xpath expressions to graphs of objects of all kinds: Java beans, Maps, Servlet contexts, DOM etc.
Lang - Common utilities that should be provided by the JDK, including String handling, Object and Date helpers, nested exceptions and enumerated types.
Launcher - A cross platform Java application launcher which eliminates the need for a batch or shell script to launch a Java class.
Logging A thin, modular bridging API with out-of-the-box support for the most well known logging systems.
Math Lightweight, self-contained mathematics and statistics components.
Modeler Mechanisms to create Model MBeans compatible with the Java Management Extensions (JMX) specification.
Net - A collection of classes implementing various network protocols such as FTP, NNTP, SMTP, Telnet.
Pool - A generic object pooling interface, a toolkit for creating modular object pools and several general purpose pool implementations.
Proxy - A Java library for dynamic proxying
SCXML - A Java implementation of State Chart XML (SCXML), currently a W3C Working Draft.
Transaction - Utility classes commonly used in transactional programming
Validator - Components for user input validation
VFS - Extensible framework to acces various filesystems through an unified api with implementations for e.g. sftp, smb, http, zip, ...
On the commons site:
TheSandbox is an open workspace for Apache committers. This is also divided into components.
On this wiki:
ClassScan - Read access to the ClassPath of a ClassLoader and metadata about the classes available from a ClassLoader.
CLI2 - An experimental rewrite of the Commons CLI API
CommonsCsv - Proposed new component
Id - Generators for identifiers
ME - Provides JaveME helpers, and implementations of JavaSE functionality that JavaME lacks but programmers want
Metadata - Proposed new component which provides a class metadata API similar to that of JDK5
Sandbox components that are currently inactive. On this wiki:
FeedParser - RSS and Atom parsing infrastructure
Resources - A lightweight framework for defining and looking up internationalized message strings.
'Special' Wiki pages
See SpecialWikiPages for a basic guide to using this wiki, a full-text search of this wiki, a title index, orphaned and random pages, stats, and information about this wiki installation and available extensions.