自分でStrutsコードを調べる

Strutsにはインタフェース、ModuleConfig、その実装クラスModuleConfigImplがあります.この実装クラスにはいくつかの変数があります.
 

/**
     * The set of action configurations for this module, if any,
     * keyed by the <code>path</code> property.
     */
    protected HashMap actionConfigs = null;
    
    /**
     * The set of action configurations for this module, if any,
     * listed in the order in which they are added.
     */
    protected List actionConfigList = null; 
    
    /**
     * The set of JDBC data source configurations for this
     * module, if any, keyed by the <code>key</code> property.
     */
    protected HashMap dataSources = null;
    
    /**
     * The set of exception handling configurations for this
     * module, if any, keyed by the <code>type</code> property.
     */
    protected HashMap exceptions = null;
    
    /**
     * The set of form bean configurations for this module, if any,
     * keyed by the <code>name</code> property.
     */
    protected HashMap formBeans = null;
    
    /**
     * The set of global forward configurations for this module, if any,
     * keyed by the <code>name</code> property.
     */
    protected HashMap forwards = null;
    
    /**
     * The set of message resources configurations for this
     * module, if any, keyed by the <code>key</code> property.
     */
    protected HashMap messageResources = null;
    
    /**
     * The set of configured plug-in Actions for this module,
     * if any, in the order they were declared and configured.
     */
    protected ArrayList plugIns = null;
    
    /**
     * Has this module been completely configured yet.  Once this flag
     * has been set, any attempt to modify the configuration will return an
     * IllegalStateException.
     */
    protected boolean configured = false;
    
    /**
     * The controller configuration object for this module.
     */
    protected ControllerConfig controllerConfig = null;
    
    /**
     * The prefix of the context-relative portion of the request URI, used to
     * select this configuration versus others supported by the controller
     * servlet.  A configuration with a prefix of a zero-length String is the
     * default configuration for this web module.
     */
    protected String prefix = null;
    
    /**
     * The default class name to be used when creating action form bean
     * instances.
     */
    protected String actionFormBeanClass = "org.apache.struts.action.ActionFormBean";
    
    /**
     * The default class name to be used when creating action mapping instances.
     */
    protected String actionMappingClass = "org.apache.struts.action.ActionMapping";
    
    /**
     * The default class name to be used when creating action forward instances.
     */
    protected String actionForwardClass = "org.apache.struts.action.ActionForward";
    
    /**
     * Matches action config paths against compiled wildcard patterns
     */
    protected ActionConfigMatcher matcher = null;

Struts-config.xmlファイルのさまざまなプロパティに対応します.
具体的な参考http://ltc603.iteye.com/blog/68704