public class Hierarchy : LoggerRepositorySkeleton, IBasicRepositoryConfigurator, 
	IXmlRepositoryConfigurator

Public Class Hierarchy
	Inherits LoggerRepositorySkeleton
	Implements IBasicRepositoryConfigurator, IXmlRepositoryConfigurator

public ref class Hierarchy : public LoggerRepositorySkeleton, 
	IBasicRepositoryConfigurator, IXmlRepositoryConfigurator

type Hierarchy =  
    class
        inherit LoggerRepositorySkeleton
        interface IBasicRepositoryConfigurator
        interface IXmlRepositoryConfigurator
    end

The Hierarchy type exposes the following members.

	Name	Description
	Hierarchy	Default constructor
	Hierarchy(ILoggerFactory)	Construct with a logger factory
	Hierarchy(PropertiesDictionary)	Construct with properties
	Hierarchy(PropertiesDictionary, ILoggerFactory)	Construct with properties and a logger factory

	Name	Description
	ConfigurationMessages	Contains a list of internal messages captures during the last configuration. (Inherited from LoggerRepositorySkeleton.)
	Configured	Flag indicates if this repository has been configured. (Inherited from LoggerRepositorySkeleton.)
	EmittedNoAppenderWarning	Has no appender warning been emitted
	LevelMap	Get the level map for the Repository. (Inherited from LoggerRepositorySkeleton.)
	LoggerFactory	Gets or sets the default ILoggerFactory instance.
	Name	The name of the repository (Inherited from LoggerRepositorySkeleton.)
	PluginMap	The plugin map for this repository. (Inherited from LoggerRepositorySkeleton.)
	Properties	Repository specific properties (Inherited from LoggerRepositorySkeleton.)
	RendererMap	RendererMap accesses the object renderer map for this repository. (Inherited from LoggerRepositorySkeleton.)
	Root	Get the root of this hierarchy
	Threshold	The threshold for all events in this repository (Inherited from LoggerRepositorySkeleton.)

	Name	Description
	AddRenderer	Adds an object renderer for a specific class. (Inherited from LoggerRepositorySkeleton.)
	BasicRepositoryConfigure	Initialize the log4net system using the specified appenders
	Clear	Clear all logger definitions from the internal hashtable
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Exists	Test if a logger exists (Overrides LoggerRepositorySkeletonExists(String).)
	Finalize	Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
	Flush	Flushes all configured Appenders that implement IFlushable. (Inherited from LoggerRepositorySkeleton.)
	GetAppenders	Returns all the Appenders that are currently configured (Overrides LoggerRepositorySkeletonGetAppenders.)
	GetCurrentLoggers	Returns all the currently defined loggers in the hierarchy as an Array (Overrides LoggerRepositorySkeletonGetCurrentLoggers.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetLogger(String)	Return a new logger instance named as the first parameter using the default factory. (Overrides LoggerRepositorySkeletonGetLogger(String).)
	GetLogger(String, ILoggerFactory)	Return a new logger instance named as the first parameter using factory.
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	IsDisabled	Test if this hierarchy is disabled for the specified Level.
	Log	Log the logEvent through this hierarchy. (Overrides LoggerRepositorySkeletonLog(LoggingEvent).)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	OnConfigurationChanged	Notify the registered listeners that the repository has had its configuration changed (Inherited from LoggerRepositorySkeleton.)
	OnConfigurationReset	Notify the registered listeners that the repository has had its configuration reset (Inherited from LoggerRepositorySkeleton.)
	OnLoggerCreationEvent	Sends a logger creation event to all registered listeners
	OnShutdown	Notify the registered listeners that the repository is shutting down (Inherited from LoggerRepositorySkeleton.)
	RaiseConfigurationChanged	Raise a configuration changed event on this repository (Inherited from LoggerRepositorySkeleton.)
	ResetConfiguration	Reset all values contained in this hierarchy instance to their default. (Overrides LoggerRepositorySkeletonResetConfiguration.)
	Shutdown	Shutting down a hierarchy will safely close and remove all appenders in all loggers including the root logger. (Overrides LoggerRepositorySkeletonShutdown.)
	ToString	Returns a String that represents the current Object. (Inherited from Object.)
	XmlRepositoryConfigure	Initialize the log4net system using the specified config

	Name	Description
	ConfigurationChanged	Event to notify that the repository has had its configuration changed. (Inherited from LoggerRepositorySkeleton.)
	ConfigurationReset	Event to notify that the repository has had its configuration reset. (Inherited from LoggerRepositorySkeleton.)
	LoggerCreatedEvent	Event used to notify that a logger has been created.
	ShutdownEvent	Event to notify that the repository has been shutdown. (Inherited from LoggerRepositorySkeleton.)

The casual user should not have to deal with this class directly.

This class is specialized in retrieving loggers by name and also maintaining the logger hierarchy. Implements the ILoggerRepository interface.

The structure of the logger hierarchy is maintained by the [M:GetLogger(string)] method. The hierarchy is such that children link to their parent but parents do not have any references to their children. Moreover, loggers can be instantiated in any order, in particular descendant before ancestor.

In case a descendant is created before a particular ancestor, then it creates a provision node for the ancestor and adds itself to the provision node. Other descendants of the same ancestor add themselves to the previously created provision node.

Reference