Welcome to the Jakarta Commons Wiki

We're a \[http://wiki.apache.org/jakarta/FrontPage Jakarta\] community, dedicated to creating reusable library components in Java. Jakarta Commons is now using \[http://subversion.tigris.org/ Subversion\] as the version control system.

Welcome: JakartaCommonsEtiquette | JakartaCommonsResources | ArticlesAndTutorials

Developers: [GettingInvolved] | \[:UsingSVN\]

Committers: CommonsPeople | ComponentPlans | CommonsCommitters

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

• \[:DBCP\] - Database connection pooling services.

• \[:Digester\] - An XML-to-Java-object mapping utility commonly used for parsing XML configuration files.

• \[:FileUpload\] - Makes it easy to add robust, high-performance, file upload capability to your servlets and web applications

• \[http://wiki.apache.org/jakarta-httpclient/FrontPage HttpClient\] - 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.

• \[:JEXL\] - 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.

• \[:Resources\] - A lightweight framework for defining and looking up internationalized message strings.

• \[:Transaction\] - 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://jakarta.apache.org/commons/components.html
  

Sandbox

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

On this wiki:

• \[:CommonsConvert\] - Various conversion ideas extracted from \[:BeanUtils\]

• \[:Id\] - Generators for identifiers

• \[:SCXML\] - A Java implementation of State Chart XML (SCXML), currently a W3C Working Draft.

• \[:CommonsCsv\] - Proposed new component \\

Dormant

Sandbox components that are currently inactive. On this wiki:

• \[:FeedParser\] - RSS and Atom parsing infrastructure \\

Developer Documentation

• A CommonsManual.
  
• MovingComponents (sandbox graduations have additional requirements - also see related links below)
  
• MovingFromSandboxToProper

• \[:MovingFromSandboxToProperSVN\] \\

• CreatingStandardWebPresence
  

• [GettingInvolved] - General Documentation for all Apache Commiters and [ReleaseManager] concerning various subjects (like [SigningReleases], [MavenRepository], and \[:Mirroring\]) \\

• ComponentTemplate - Use this template when creating the main wiki page for a component.
  
• AutomatedIdeas - some ideas on how increased automation could help us (HenriYandell)
  
• SubversionConversion - a proposed set of svn instructions for infrastructure.
  
• CreatingSiteWithMaven2 - a trial to see if it is possible to use Maven 2 to build commons sites.

*Q:* Little request: Can we PLEASE have a single javadoc tree for all commons components?  
I am getting tired of switching between dbcp, loggin, and pool.  
Especially when I am following one line of calls or inheritance.  
Thanks, Angus

*A:* Sure, it should be relatively easy, why not take some initiative and do it yourself?

Proposed solution: \[http://www.apache.org/~bayard/multidoc/commons-multidoc/ Multidoc\]

'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.