TAO::Profile_Transport_Resolver Class Reference

Chooses the profile and a transport for a target object on which an invocation can be made. More...

#include <Profile_Transport_Resolver.h>

Collaboration diagram for TAO::Profile_Transport_Resolver:

[legend]List of all members.

Public Member Functions
	Profile_Transport_Resolver (CORBA::Object *p, TAO_Stub *stub, bool block=true)
	Constructor.
	~Profile_Transport_Resolver (void)
void	resolve (ACE_Time_Value *val) throw (CORBA::SystemException)
	Method where the bunch of the action takes place.
void	transport_released (void) const
bool	try_connect (TAO_Transport_Descriptor_Interface *desc, ACE_Time_Value *val)
void	init_inconsistent_policies () throw (CORBA::SystemException)
CORBA::PolicyList *	inconsistent_policies (void) const
CORBA::PolicyList *	steal_inconsistent_policies (void)
Accessors and mutators for this class. The following methods
are used by the clients of this class to access strategies and other internal workings.
void	profile (TAO_Profile *pfile)
	Mutator for profile.
TAO_Profile *	profile (void) const
	Accessor for profile.
TAO_Stub *	stub (void) const
	Accessor for TAO_Stub.
CORBA::Object *	object (void) const
	Accessor for the target in use.
TAO_Transport *	transport (void) const
	Accessor for the transport reserved for this invocation.
int	find_transport (TAO_Transport_Descriptor_Interface *)
bool	blocked_connect (void) const
Private Member Functions
bool	get_connection_timeout (ACE_Time_Value &max_wait_time)
Private Attributes
CORBA::Object *	obj_
	Target object.
TAO_Stub *	stub_
	Stub object for the target object.
TAO_Transport *	transport_
	The transport selected for this invocation.
TAO_Profile *	profile_
	The profile that has been selected for this invocation.
CORBA::PolicyList *	inconsistent_policies_
	List of inconsistent policies.
bool	is_released_
	Has the transport been idle?
bool const	blocked_
	Should we block while trying to make a connection.

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Detailed Description

Chooses the profile and a transport for a target object on which an invocation can be made.

A target object is represented by multiple profiles, which theoretically provides multiple paths to the same target object. This class helps in choosing the right profile, and pick a transport from cache (or create a new transport if needed) that represents the profile.

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Constructor & Destructor Documentation

ACE_INLINE TAO::Profile_Transport_Resolver::Profile_Transport_Resolver (  CORBA::Object *  p, TAO_Stub *  stub, bool  block = true )

Constructor. With block we tell whether this resolved should always deliver a connection by blocking or unblock before the connection is completely established. Please note that this has *nothing* to do with the synchronous or asynch connect strategy used for making connections. This is a local flag used by the clients of this to dictate some local behavior.

TAO::Profile_Transport_Resolver::~Profile_Transport_Resolver (  void   )

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Member Function Documentation

ACE_INLINE bool TAO::Profile_Transport_Resolver::blocked_connect (  void   )  const

Accessor to indicate whether we should block while establishing a connection.

int TAO::Profile_Transport_Resolver::find_transport (  TAO_Transport_Descriptor_Interface *   )

See if the transport cache has an available transport and use that one rather than trying to connect via the connector. Separating this functionality enables the look up of many endpoints before trying the more time-consuming trip through the actual connector.

bool TAO::Profile_Transport_Resolver::get_connection_timeout (  ACE_Time_Value &  max_wait_time  )  [private]

Helper method to access get the connection timeout from the ORB.

ACE_INLINE CORBA::PolicyList * TAO::Profile_Transport_Resolver::inconsistent_policies (  void   )  const

void TAO::Profile_Transport_Resolver::init_inconsistent_policies (   )  throw (CORBA::SystemException)

Initialize the inconsistent policy list that this object has cached.

ACE_INLINE CORBA::Object_ptr TAO::Profile_Transport_Resolver::object (  void   )  const

Accessor for the target in use.

ACE_INLINE TAO_Profile * TAO::Profile_Transport_Resolver::profile (  void   )  const

Accessor for profile.

void TAO::Profile_Transport_Resolver::profile (  TAO_Profile *  pfile  )

Mutator for profile.

void TAO::Profile_Transport_Resolver::resolve (  ACE_Time_Value *  val  )  throw (CORBA::SystemException)

Method where the bunch of the action takes place. This is the entry point from the TAO::Invocation_Adapter class. This method accesses the endpoint selector factory from the ORB_Core to decide on the strategy to be used for selecting the profile.

ACE_INLINE CORBA::PolicyList * TAO::Profile_Transport_Resolver::steal_inconsistent_policies (  void   )

ACE_INLINE TAO_Stub * TAO::Profile_Transport_Resolver::stub (  void   )  const

Accessor for TAO_Stub.

ACE_INLINE TAO_Transport * TAO::Profile_Transport_Resolver::transport (  void   )  const

Accessor for the transport reserved for this invocation.

ACE_INLINE void TAO::Profile_Transport_Resolver::transport_released (  void   )  const

Signal to let the resolver know that the transport has been released back to the cache.

bool TAO::Profile_Transport_Resolver::try_connect (  TAO_Transport_Descriptor_Interface *  desc, ACE_Time_Value *  val )

This is a callback method used by the endpoint selectors, to delegate the responsibility of reserving a transport from the connection cache for this invocation.

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Member Data Documentation

bool const TAO::Profile_Transport_Resolver::blocked_ [private]

Should we block while trying to make a connection.

CORBA::PolicyList* TAO::Profile_Transport_Resolver::inconsistent_policies_ [private]

List of inconsistent policies. If current effective policies cause the invocation to raise CORBA::INV_POLICY exception, the conflicting/problematic policies are stored in this list. This is used by Parameters: Object::_validate_connection  method to inform clients about causes of invocation failure. Conflicting policies are only stored in this list if Parameters: init_inconsistent_policies  method has been called prior to the beginning of invocation. This saves extra work of conflicting policies 'logging' when it's not needed. Note: We don't use _var with a reason. Using _var would involve including the header file for at least Policy_ForwardC.h, and that is what we precisely want to avoid.

bool TAO::Profile_Transport_Resolver::is_released_ [mutable, private]

Has the transport been idle?

CORBA::Object* TAO::Profile_Transport_Resolver::obj_ [mutable, private]

Target object.

TAO_Profile* TAO::Profile_Transport_Resolver::profile_ [private]

The profile that has been selected for this invocation.

TAO_Stub* TAO::Profile_Transport_Resolver::stub_ [private]

Stub object for the target object.

TAO_Transport* TAO::Profile_Transport_Resolver::transport_ [private]

The transport selected for this invocation.

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

• Profile_Transport_Resolver.h
• Profile_Transport_Resolver.cpp
• Profile_Transport_Resolver.inl

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