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= Welcome to the Apache Commons Wiki =
|| {{http://commons.apache.org/images/logo.png}} ||  This is the [[ApacheGeneral:FrontPage|Apache Wiki]] for the [[http://commons.apache.org/|Apache Commons]] project and is maintained by the [[commons:FrontPage|Commons]] community. To edit pages, visit [[UserPreferences|login]] near the top right corner of any page to create a user profile or to login. 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 [[http://wiki.apache.org/commons/FrontPage|Commons]] community, dedicated to creating reusable library components in Java. Apache Commons is now using [[http://subversion.tigris.org/|Subversion]] as the version control system.

Welcome: CommonsEtiquette | CommonsResources | ArticlesAndTutorials

Developers: GettingInvolved | [[UsingSVN]]

Committers: CommonsPeople | ComponentPlans | CommonsCommitters

Bug Reports: [[http://issues.apache.org/jira/secure/Dashboard.jspa|Jira]]

= Components =

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 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
 * [[http://wiki.apache.org/HttpComponents/FrontPage|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:
 * http://commons.apache.org/components.html

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= Sandbox =

TheSandbox is an open workspace for jakarta committers. This is also divided into components.

On this wiki:

 * [[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


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= Dormant =

Sandbox components that are currently inactive. On this wiki:
 * [[CommonsConvert]] - Various conversion ideas extracted from [[BeanUtils]]
 * [[FeedParser]] - RSS and Atom parsing infrastructure
 * [[Resources]] - A lightweight framework for defining and looking up internationalized message strings.

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= '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.