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

#include <Comparator_T.h>

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

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 94 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 96 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 97 of file Comparator_T.h.

00099   : ComparatorBase(next)
00100   , mp_(mp)
00101   , 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 109 of file Comparator_T.h.

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

00109                                                    {
00110     Sample* lhs = static_cast<Sample*>(lhs_void);
00111     Sample* rhs = static_cast<Sample*>(rhs_void);
00112     return delegate_->equal(&(lhs->*mp_), &(rhs->*mp_));
00113   }

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 103 of file Comparator_T.h.

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

00103                                                   {
00104     Sample* lhs = static_cast<Sample*>(lhs_void);
00105     Sample* rhs = static_cast<Sample*>(rhs_void);
00106     return delegate_->less(&(lhs->*mp_), &(rhs->*mp_));
00107   }