The Commons Configuration software library provides a generic configuration interface which enables a Java 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:
Double double = config.getDouble("number"); Integer integer = config.getInteger("number");
Configuration parameters may be loaded from the following sources: - Properties files - XML documents - Windows INI files - Property list files (plist) - JNDI - JDBC Datasource - System properties - Applet parameters - Servlet parameters
Configuration objects are created using configuration builders. Different
configuration sources can be mixed using a CombinedConfigurationBuilder and
a CombinedConfiguration. Additional sources of configuration parameters can
be created by using custom configuration objects. This customization can be
achieved by extending AbstractConfiguration or
AbstractHierarchicalConfiguration.