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openvrml::vrml97_node::abstract_base Class Reference

Inheritance diagram for openvrml::vrml97_node::abstract_base:

[legend]

List of all members.

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Detailed Description

Abstract base class for VRML97 node implementations.

abstract_base encapsulates the mechanisms for field access and mutation, event dispatch, and eventOut access.

Public Member Functions
virtual	~abstract_base ()=0 throw ()
	Destroy.
Protected Member Functions
	abstract_base (const node_type &type, const boost::shared_ptr< openvrml::scope > &scope)
	Construct.
Private Member Functions
virtual const field_value &	do_field (const std::string &id) const throw (unsupported_interface)
	Get a field value for a node.
virtual openvrml::event_listener &	do_event_listener (const std::string &id) throw (unsupported_interface)
	Get an event listener.
virtual openvrml::event_emitter &	do_event_emitter (const std::string &id) throw (unsupported_interface)
	Get an event emitter.

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Constructor & Destructor Documentation

openvrml::vrml97_node::abstract_base::~abstract_base

(

)

throw () [pure virtual]

Destroy.

openvrml::vrml97_node::abstract_base::abstract_base	(	const node_type &	type,
		const boost::shared_ptr< openvrml::scope > &	scope
	)			[protected]

Construct.

Parameters:

	type	the node_type associated with this node.
	scope	the scope to which the node belongs.

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Member Function Documentation

const field_value & openvrml::vrml97_node::abstract_base::do_field

(

const std::string &

id

)

const throw (unsupported_interface) [private, virtual]

Get a field value for a node.

Parameters:

id

a field name.

Exceptions:

unsupported_interface

if the node has no field id.

Implements openvrml::node.

event_listener & openvrml::vrml97_node::abstract_base::do_event_listener

(

const std::string &

id

)

throw (unsupported_interface) [private, virtual]

Get an event listener.

This method is called by node::event_listener.

Parameters:

id

eventIn identifier.

Returns:

the event listener.

Exceptions:

unsupported_interface

if the node has no eventIn id.

Implements openvrml::node.

event_emitter & openvrml::vrml97_node::abstract_base::do_event_emitter

(

const std::string &

id

)

throw (unsupported_interface) [private, virtual]

Get an event emitter.

This method is called by node::event_emitter.

Parameters:

id

eventOut identifier.

Returns:

the event emitter.

Exceptions:

unsupported_interface

if the node has no eventOut id.

Implements openvrml::node.