IActivator Class Reference

#include <Pt/Cosmo/IActivator.h>

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Public Member Functions
	IActivator ()
	Constructor.
virtual	~IActivator ()
	Destructor.
Component *	get (const std::string &featureId) const
	Returns the component by feature ID or throws.
template<typename I>
I *	get (const std::string &id) const
	Returns the interface from a component or throws.
Component *	query (const std::string &featureId) const
	Returns the component by feature ID or null.
template<typename I>
I *	query (const std::string &id) const
	Returns the interface from a component or null.

Protected Member Functions
virtual Component *	onQuery (const std::string &featureId) const =0
	Gets the component by feature ID or null if not available.

Detailed Description

Passed to IActivate::onActivate() to resolve required dependencies by feature ID. Use get() when the dependency is mandatory (throws on failure) or query() when it may legitimately be absent.

Member Function Documentation

get() [1/2]

Component * get

(

const std::string &

featureId

)

const

Parameters

featureId

Feature ID of the required component.

get() [2/2]

template<typename I>

I * get

(

const std::string &

id

)

const

Parameters

id	Feature ID of the required component.

query() [1/2]

Component * query

(

const std::string &

featureId

)

const

Parameters

featureId

Feature ID of the component.

query() [2/2]

template<typename I>

I * query

(

const std::string &

id

)

const

Parameters

id	Feature ID of the component.