IT_Reflect::NillableValueImplT< NillableT, T > Class Template Reference

#include <it_bus/reflect/nillable_value_impl_t.h>

Inheritance diagram for IT_Reflect::NillableValueImplT< NillableT, T >:

List of all members.

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Detailed Description

template<class NillableT, class T>
class IT_Reflect::NillableValueImplT< NillableT, T >

Template base class for nillable value implementations.

Definition at line 16 of file nillable_value_impl_t.h.

Public Member Functions
	NillableValueImplT (const NillableT *data) IT_THROW_DECL(())
	Constructor.
virtual	~NillableValueImplT () IT_THROW_DECL(())
	Destructor.
virtual IT_Bus::Boolean	get_is_nil () const IT_THROW_DECL(())
	Determine if the instance is nill.
virtual void	set_is_nil () IT_THROW_DECL(())
	Set the instance to be nil.
virtual const Reflection *	get_value () const IT_THROW_DECL((ReflectException))
	Get a read-only reflection of the value.
virtual Reflection *	use_value () IT_THROW_DECL((ReflectException))
	Get a reflection that can be used to modify the value.

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Member Function Documentation

template<class NillableT, class T>

IT_Bus::Boolean IT_Reflect::NillableValueImplT< NillableT, T >::get_is_nil

(

)

const [virtual]

Determine if the instance is nill.

Returns:

Boolean

Exceptions:

ReflectException

Implements IT_Reflect::Nillable.

Definition at line 70 of file nillable_value_impl_t.h.

References IT_Reflect::ReflectionImplT< NillableT >::m_data.

Referenced by IT_Reflect::NillableValueImplT< NillableT, T >::get_value().

template<class NillableT, class T>

const Reflection * IT_Reflect::NillableValueImplT< NillableT, T >::get_value

(

)

const [virtual]

Get a read-only reflection of the value.

Returns:

Reflection of value or 0 if nil.

Exceptions:

ReflectException

Implements IT_Reflect::Nillable.

Definition at line 86 of file nillable_value_impl_t.h.

References IT_Reflect::NillableValueImplT< NillableT, T >::get_is_nil().

template<class NillableT, class T>

void IT_Reflect::NillableValueImplT< NillableT, T >::set_is_nil

(

)

[virtual]

Set the instance to be nil.

Returns:

void

Exceptions:

ReflectException

Implements IT_Reflect::Nillable.

Definition at line 78 of file nillable_value_impl_t.h.

References IT_Reflect::ReflectionImplT< NillableT >::m_data.

template<class NillableT, class T>

Reflection * IT_Reflect::NillableValueImplT< NillableT, T >::use_value

(

)

[virtual]

Get a reflection that can be used to modify the value.

This makes get_is_nil() false.

Returns:

Modifiable reflection of value. Caller must _remove_ref().

Exceptions:

ReflectException

Implements IT_Reflect::Nillable.

Definition at line 95 of file nillable_value_impl_t.h.

References IT_Reflect::ReflectionImplT< NillableT >::m_data.

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