| <?xml version="1.0"?> |
| <document> |
| |
| <properties> |
| <author email="pete@kazmier.com">Pete Kazmier</author> |
| <author email="mpoeschl@marmot.at">Martin Poeschl</author> |
| <author email="jason@zenplex.com">Jason van Zyl</author> |
| <author email="epugh@upstate.com">Eric Pugh</author> |
| <author email="tobrien@discursive.com">Tim O'Brien</author> |
| <title>Configuration</title> |
| </properties> |
| |
| <body> |
| <section name="Intro"> |
| <p> |
| Commons Configuration provides a generic configuration |
| interface which enables an application to read configuration |
| data from a variety of sources. Commons Configuration |
| provides typed access to single, and multi-valued |
| configuration parameters as demonstrated by the following |
| code: |
| |
| <source><![CDATA[ Double double = Configuration.getDouble("some_double_value"); ]]></source> |
| |
| </p> |
| <p> |
| Configuration parameters may be loaded from the following |
| sources: |
| |
| <ul> |
| <li>Properties files</li> |
| <li>XML documents</li> |
| <li>JNDI</li> |
| <li>JDBC Datasource</li> |
| </ul> |
| |
| Different configuration sources can be mixed using a |
| <code>ConfigurationFactory</code> and |
| <code>CompositeConfiguration</code>. Additional sources of |
| configuration parameters can be created by using custom |
| configuration objects. This customization can be achieved by |
| extending <code>AbstractConfiguration</code>. |
| </p> |
| <p> |
| The full Configuration API is available <a href="apidocs/org/apache/commons/configuration/Configuration.html#method_summary">here</a>. |
| </p> |
| </section> |
| |
| <section name="Latest Release"> |
| <p> |
| The latest release of Apache Jakarta Commons Configuration is available from <a href="downloads.html">here</a>. |
| It is also available from <a href="http://www.ibiblio.org/maven/commons-configuration/jars">IBiblio</a>. |
| The <a href="changes-report.html">Changes Report</a> |
| explains all of the changes and bug fixes that have been made. |
| </p> |
| </section> |
| |
| <section name="History"> |
| <p> |
| Commons Configuration started as code in Apache JServ. The |
| JServ code was subsequently added to <a |
| href="http://jakarta.apache.org/turbine">Jakarta Turbine</a>. |
| After Jakarta Turbine, this configuration interface moved to |
| <a href="http://jakarta.apache.org/velocity">Jakarta |
| Velocity</a> and underwent various improvements. After |
| Velocity, this code was introduced to the <a |
| href="http://jakarta.apache.org/commons">Jakarta Commons</a> |
| as <code>ExtendedProperties</code>. Configuration began life |
| in the Commons as a Sandbox component, and was promoted to the |
| Commons Proper in late 2003. |
| </p> |
| </section> |
| </body> |
| </document> |
