TdjHandlerWrapper Class Reference

A HandlerWrapper acts as a IHandler but delegates the handle method and life cycle events to a delegate. More...

Inheritance diagram for TdjHandlerWrapper:

Public Member Functions
	AddHandler (const IHandler Handler)
	Add a handler to the container.
	RemoveHandler (const IHandler Handler)
	Remove a handler from the container.
	DoStart ()
	Start the handler.
	DoStop ()
	Stop the handler.
	Handle (const string Target, TdjServerContext Context, TdjRequest Request, TdjResponse Response)
	Handle a HTTP request.
Public Member Functions inherited from TdjAbstractHandler
	TdjAbstractHandler ()
	Constructor.
	DoStart ()
	Start the handler.
	DoStop ()
	Start the handler.
	Handle (const string Target, TdjServerContext Context, TdjRequest Request, TdjResponse Response)
	Handle a HTTP request.
Public Member Functions inherited from TdjLifeCycle
	Start ()
	Start the handler.
	Stop ()
	Stop the handler.
Boolean	IsStarted ()
Boolean	IsStopped ()

Public Attributes
IHandler	Handler
Public Attributes inherited from TdjLifeCycle
Boolean	Started
	True if the state is "started".
Boolean	Stopped
	True if the state is "stopped".

Protected Member Functions
TIdHTTPSession	GetSession (TdjServerContext Context, TdjRequest Request, TdjResponse Response, const Boolean Create)
	Get a HTTP session.
Protected Member Functions inherited from TdjAbstractHandlerContainer
	AddHandler (const IHandler Handler)
	Add a handler.
	RemoveHandler (const IHandler Handler)
	Remove a handler.
Protected Member Functions inherited from TdjLifeCycle
	DoStart ()
	Execute the custom start code.
	DoStop ()
	Execute the custom stop code.
	CheckStarted ()
	Raises an exception if the lifecycle is in "started" state.
	CheckStopped ()
	Raises an exception if the lifecycle is in "stopped" state.

Detailed Description

A HandlerWrapper acts as a IHandler but delegates the handle method and life cycle events to a delegate.

This is primarily used to implement the Decorator pattern.

Member Function Documentation

AddHandler()

TdjHandlerWrapper::AddHandler

(

const IHandler

Handler

)

Add a handler to the container.

This implementation of AddHandler calls SetHandler with the passed handler. If this HandlerWrapper had a previous wrapped handler, then it is passed to a call to AddHandler on the passed handler.

Parameters

Handler

the handler to be added

References Handler.

Referenced by TdjServer::TdjServer(), and TdjWebComponentContextHandler::TdjWebComponentContextHandler().

Handle()

TdjHandlerWrapper::Handle	(	const string	Target,
		TdjServerContext	Context,
		TdjRequest	Request,
		TdjResponse	Response )

Handle a HTTP request.

Parameters

Target	Request target
Context	HTTP server context
Request	HTTP request
Response	HTTP response

Exceptions

EWebComponentException

if an exception occurs that interferes with the component's normal operation

See also

IHandler

References Handler.

RemoveHandler()

TdjHandlerWrapper::RemoveHandler

(

const IHandler

Handler

)

Remove a handler from the container.

Parameters

Handler

the handler to be removed

References Handler.

Member Data Documentation

Handler

IHandler TdjHandlerWrapper::Handler

See also

GetHandler For reading

SetHandler For writing

Referenced by AddHandler(), DoStop(), Handle(), and RemoveHandler().