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/* Copyright (c) Oracle Corporation 2002. All Rights Reserved */
/*
DESCRIPTION
position advisory class. this subclass of OAdvisory will
keep track of the absolute position within a dynaset
MODIFIED
kwhitley 10/18/94 Created
*/
#ifndef POSADV_ORACLE
#include "posadv.h"
#endif
/*
Please see the Workbook document for a discussion of this class
*/
PosAdvise::PosAdvise(void)
{
m_position = -1; // position is not yet defined
}
PosAdvise::~PosAdvise(void)
{
}
long PosAdvise::GetPosition(void) const
{
return(m_position);
}
oboolean PosAdvise::ActionRequest(int movekind)
{
// we allow only simple navigation. otherwise our
// bookkeeping might get confused
switch (movekind)
{
case OADVISE_MOVE_NEXT:
case OADVISE_MOVE_PREV:
case OADVISE_MOVE_FIRST:
case OADVISE_MOVE_LAST:
return(TRUE);
default:
return(FALSE);
}
}
void PosAdvise::ActionNotify(int movekind)
{
// depending on what the action was, calculate
// a new position
switch (movekind)
{
case OADVISE_MOVE_NEXT:
if (m_position != -1)
m_position++;
break;
case OADVISE_MOVE_PREV:
if (m_position != -1)
m_position--;
break;
case OADVISE_MOVE_FIRST:
m_position = 0;
break;
case OADVISE_MOVE_LAST:
m_position = GetDynaset.GetRecordCount() - 1;
break;
default:
// no telling where we are now
m_position = -1;
break;
}
return;
}
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