TAO_Service_Context Class Reference

Helper class for managing the service context list information. More...

#include <Service_Context.h>

Collaboration diagram for TAO_Service_Context:

List of all members.

Public Member Functions
	TAO_Service_Context (void)
	Constructor.
void	set_context (const IOP::ServiceContext &context)
	= Generic components
int	set_context (const IOP::ServiceContext &context, CORBA::Boolean replace)
void	set_context (IOP::ServiceContext &context)
int	get_context (IOP::ServiceContext &context) const
int	get_context (IOP::ServiceId id, const IOP::ServiceContext **context) const
int	get_context (IOP::ServiceId id, IOP::ServiceContext_out context)
void	set_context (IOP::ServiceId id, TAO_OutputCDR &cdr)
void	set_context (IOP::ServiceContext &context, TAO_OutputCDR &cdr)
bool	is_service_id (IOP::ServiceId id)
int	encode (TAO_OutputCDR &cdr) const
	= Marshaling and demarshaling the list
int	decode (TAO_InputCDR &cdr)
IOP::ServiceContextList &	service_info (void)
	Return the underlying service context list.
const IOP::ServiceContextList &	service_info (void) const
Private Member Functions
void	set_context_i (const IOP::ServiceContext &context)
	Helper methods to implement set_context()
void	set_context_i (IOP::ServiceContext &context)
void	add_context_i (const IOP::ServiceContext &context)
void	add_context_i (IOP::ServiceContext &context)
void	set_context_i (IOP::ServiceId id, TAO_OutputCDR &cdr)
void	set_context_i (IOP::ServiceContext &context, TAO_OutputCDR &cdr)
int	get_context_i (IOP::ServiceContext &context) const
	Helper methods to implement get_context()
	TAO_Service_Context (const TAO_Service_Context &)
TAO_Service_Context &	operator= (const TAO_Service_Context &)
Private Attributes
IOP::ServiceContextList	service_context_
	The ServiceContextList info.
Friends
class	TAO::CSD::FW_Server_Request_Wrapper

---

Detailed Description

Helper class for managing the service context list information.

This class is used to manipulate and access the service context list that is passed around with every GIOP request/reply. The definition of the service context list is simply a sequence of the following structures: typedef unsigned long ServiceId; struct ServiceContext { ServiceId context_id; sequence <octet> context_data; }; typedef sequence <ServiceContext> ServiceContextList;

the real motivation behind this class is to consolidate all the marshalling and unmarshalling information pertaining to service context list

Note:

Somewhere down the line we may want to use this class for fast access to the info that we need from the Service Context List.

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Constructor & Destructor Documentation

TAO_Service_Context::TAO_Service_Context

(

void

)

Constructor.

TAO_Service_Context::TAO_Service_Context

(

const TAO_Service_Context &

)

[private]

---

Member Function Documentation

void TAO_Service_Context::add_context_i

(

const IOP::ServiceContext &

context

)

[private]

void TAO_Service_Context::add_context_i

(

IOP::ServiceContext &

context

)

[private]

int TAO_Service_Context::decode

(

TAO_InputCDR &

cdr

)

int TAO_Service_Context::encode

(

TAO_OutputCDR &

cdr

)

const

= Marshaling and demarshaling the list

int TAO_Service_Context::get_context

(

IOP::ServiceContext &

context

)

const

Get a copy of the context identified by <context.context_id>, return 0 if the component is not present.

int TAO_Service_Context::get_context	(	IOP::ServiceId	id,
		const IOP::ServiceContext **	context
	)		const

Get a reference to a context identified by id, return 0 if the component is not present.

int TAO_Service_Context::get_context	(	IOP::ServiceId	id,
		IOP::ServiceContext_out	context
	)

Get a copy of the Service Context corresponding to the given ServiceId. The caller owns the returned Service Context.

Returns:

0 If a Service Context with the given ServiceId doesn't exist.

int TAO_Service_Context::get_context_i

(

IOP::ServiceContext &

context

)

const [private]

Helper methods to implement get_context()

bool TAO_Service_Context::is_service_id

(

IOP::ServiceId

id

)

Is the id available in the underlying service context list? If so return true, else return false

TAO_Service_Context& TAO_Service_Context::operator=

(

const TAO_Service_Context &

)

[private]

IOP::ServiceContextList & TAO_Service_Context::service_info

(

void

)

Return the underlying service context list.

const IOP::ServiceContextList & TAO_Service_Context::service_info

(

void

)

const

Note:

This method is only for backward comptiblity. We need to get this removed once RT folks have their service addition info done through this interface

void TAO_Service_Context::set_context

(

const IOP::ServiceContext &

context

)

= Generic components

Insert the component into the list, making a copy of the octet sequence.

int TAO_Service_Context::set_context	(	const IOP::ServiceContext &	context,
		CORBA::Boolean	replace
	)

Insert the component into the list, making a copy of the octet sequence. Search the list before insertion so that the insertion does not cause a duplicate context to be in the list. If the replace flag is true, update the specified context. Return 0 if the component was present and the replace flag was not set to true.

void TAO_Service_Context::set_context

(

IOP::ServiceContext &

context

)

Insert the component into the list, but efficiently stealing the contents of the octet sequence.

void TAO_Service_Context::set_context	(	IOP::ServiceId	id,
		TAO_OutputCDR &	cdr
	)

Set the context from the CDR stream and add that to the service Context list

void TAO_Service_Context::set_context	(	IOP::ServiceContext &	context,
		TAO_OutputCDR &	cdr
	)

Set the context from the CDR stream and return the context back to the caller. *Does not* modify the underlying service context list.

void TAO_Service_Context::set_context_i

(

const IOP::ServiceContext &

context

)

[private]

Helper methods to implement set_context()

void TAO_Service_Context::set_context_i

(

IOP::ServiceContext &

context

)

[private]

void TAO_Service_Context::set_context_i	(	IOP::ServiceId	id,
		TAO_OutputCDR &	cdr
	)		[private]

void TAO_Service_Context::set_context_i	(	IOP::ServiceContext &	context,
		TAO_OutputCDR &	cdr
	)		[private]

---

Friends And Related Function Documentation

friend class TAO::CSD::FW_Server_Request_Wrapper [friend]

Declare FW_Server_Request_Wrapper a friend This friendship makes the FW_Server_Request_Wrapper be able to clone the TAO_Service_Context data member in TAO_ServerRequest.

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Member Data Documentation

IOP::ServiceContextList TAO_Service_Context::service_context_ [private]

The ServiceContextList info.

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The documentation for this class was generated from the following files:

• Service_Context.h
• Service_Context.cpp
• Service_Context.inl