OpenDDS::DCPS::StructComparator< Sample, Field > Class Template Reference

#include <Comparator_T.h>

Inheritance diagram for OpenDDS::DCPS::StructComparator< Sample, Field >:

[legend]Collaboration diagram for OpenDDS::DCPS::StructComparator< Sample, Field >:


Public Types
typedef Field Sample::*	MemberPtr
Public Member Functions
	StructComparator (MemberPtr mp, ComparatorBase::Ptr delegate, ComparatorBase::Ptr next)
bool	less (void lhs_void, void rhs_void) const
bool	equal (void lhs_void, void rhs_void) const
Private Attributes
MemberPtr	mp_
ComparatorBase::Ptr	delegate_

Detailed Description

template<class Sample, class Field>
class OpenDDS::DCPS::StructComparator< Sample, Field >

deal with nested structs, for example: struct A { long x; }; struct B { A theA; }; B's query string has "ORDER BY theA.x" The generated code will create a StructComparator with Sample = B and Field = A which in turn has a "delegate" which is a FieldComparator (see above) with Sample = A and Field = CORBA::Long

Definition at line 91 of file Comparator_T.h.

Member Typedef Documentation

template<class Sample, class Field>

typedef Field Sample::* OpenDDS::DCPS::StructComparator< Sample, Field >::MemberPtr

Definition at line 93 of file Comparator_T.h.

Constructor & Destructor Documentation

template<class Sample, class Field>

OpenDDS::DCPS::StructComparator< Sample, Field >::StructComparator	(	MemberPtr	mp,
		ComparatorBase::Ptr	delegate,
		ComparatorBase::Ptr	next
	)			`[inline]`

Definition at line 94 of file Comparator_T.h.

00096   : ComparatorBase(next)
00097   , mp_(mp)
00098   , delegate_(delegate) {}

Member Function Documentation

template<class Sample, class Field>

bool OpenDDS::DCPS::StructComparator< Sample, Field >::equal	(	void *	lhs_void,
		void *	rhs_void
	)			const `[inline, virtual]`

Implements OpenDDS::DCPS::ComparatorBase.

Definition at line 106 of file Comparator_T.h.

References OpenDDS::DCPS::StructComparator< Sample, Field >::delegate_, and OpenDDS::DCPS::StructComparator< Sample, Field >::mp_.

00106                                                    {
00107     Sample* lhs = static_cast<Sample*>(lhs_void);
00108     Sample* rhs = static_cast<Sample*>(rhs_void);
00109     return delegate_->equal(&(lhs->*mp_), &(rhs->*mp_));
00110   }

template<class Sample, class Field>

bool OpenDDS::DCPS::StructComparator< Sample, Field >::less	(	void *	lhs_void,
		void *	rhs_void
	)			const `[inline, virtual]`

Implements OpenDDS::DCPS::ComparatorBase.

Definition at line 100 of file Comparator_T.h.

References OpenDDS::DCPS::StructComparator< Sample, Field >::delegate_, and OpenDDS::DCPS::StructComparator< Sample, Field >::mp_.

00100                                                   {
00101     Sample* lhs = static_cast<Sample*>(lhs_void);
00102     Sample* rhs = static_cast<Sample*>(rhs_void);
00103     return delegate_->less(&(lhs->*mp_), &(rhs->*mp_));
00104   }