IT_Reflect::Union Class Reference

#include <it_bus/reflect/union.h>

Inheritance diagram for IT_Reflect::Union:

List of all members.

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Detailed Description

Reflection of a union simple type.

Definition at line 14 of file union.h.

Public Member Functions
	Union () IT_THROW_DECL(())
	Constructor.
virtual	~Union () IT_THROW_DECL(())
	Destructor.
virtual size_t	get_member_count () const IT_THROW_DECL((ReflectException))=0
	Returns the number of members defined in the union.
virtual const IT_Bus::QName &	get_member_type (size_t index) const IT_THROW_DECL((ReflectException))=0
	Returns the QName of the member at the specified index.
virtual size_t	get_selected_member_index () const IT_THROW_DECL((ReflectException))=0
	Returns the index of the selected member.
virtual const Reflection *	get_selected_member () const IT_THROW_DECL((ReflectException))=0
	Returns a read-only reflection object of the selected member.
virtual Reflection *	use_member (size_t index) IT_THROW_DECL((ReflectException))=0
	Returns a reflection object of the member at the specified index that can be used to modify the member.
virtual void	set_no_member () IT_THROW_DECL((ReflectException))=0
	Set the union so that no members are selected.

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Member Function Documentation

virtual size_t IT_Reflect::Union::get_member_count

(

)

const [pure virtual]

Returns the number of members defined in the union.

Returns:

the number of members in the union

Exceptions:

ReflectException

Implemented in IT_Reflect::UnionImpl.

virtual const IT_Bus::QName& IT_Reflect::Union::get_member_type

(

size_t

index

)

const [pure virtual]

Returns the QName of the member at the specified index.

Parameters:

index

the member index

Returns:

the QName of the member at the specified index

Exceptions:

ReflectException

If the index is out of bounds

Implemented in IT_Reflect::UnionImpl.

virtual const Reflection* IT_Reflect::Union::get_selected_member

(

)

const [pure virtual]

Returns a read-only reflection object of the selected member.

Returns:

a read-only Reflection of the selected member. Caller must call _remove_ref().

Exceptions:

ReflectException

If no member is selected

virtual size_t IT_Reflect::Union::get_selected_member_index

(

)

const [pure virtual]

Returns the index of the selected member.

Returns:

the index of the selected member

Exceptions:

ReflectException

If no member is selected

virtual void IT_Reflect::Union::set_no_member

(

)

[pure virtual]

Set the union so that no members are selected.

Exceptions:

ReflectException

virtual Reflection* IT_Reflect::Union::use_member

(

size_t

index

)

[pure virtual]

Returns a reflection object of the member at the specified index that can be used to modify the member.

The member is selected if necessary.

Parameters:

index

the member index

Returns:

a modifiable Reflection of the member at the specified index. Caller must call _remove_ref().

Exceptions:

ReflectException

If the index is out of bounds

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