void CMPI_Wql2Dnf::compile(const WQLSelectStatement * wqs)
{
PEG_METHOD_ENTER(TRC_CMPIPROVIDERINTERFACE, "CMPI_Wql2Dnf::compile()");
if( !wqs->hasWhereClause() )
{
PEG_METHOD_EXIT();
return;
}
_tableau.clear();
_buildEvalHeap(wqs);
_pushNOTDown();
_factoring();
Array<CMPI_stack_el> disj;
_gatherDisj(disj);
if( disj.size() == 0 )
{
if( terminal_heap.size() > 0 )
{
// point to the remaining terminal element
disj.append(CMPI_stack_el(0,true));
}
}
for( Uint32 i=0, n =disj.size(); i< n; i++ )
{
TableauRow_WQL tr;
Array<CMPI_stack_el> conj;
if( !disj[i].is_terminal )
{
_gatherConj(conj, disj[i]);
for( Uint32 j=0, m = conj.size(); j < m; j++ )
{
addIfNotExists(tr,terminal_heap[conj[j].opn]);
// tr.append(terminal_heap[conj[j].opn]);
}
}
else
{
addIfNotExists(tr,terminal_heap[disj[i].opn]);
// tr.append(terminal_heap[disj[i].opn]);
}
_tableau.append(tr);
}
eval_heap.clear();
_populateTableau();
PEG_METHOD_EXIT();
}
CMPI_Cql2Dnf::CMPI_Cql2Dnf (const CQLSelectStatement qs):
cqs (qs)
{
_tableau.clear ();
_populateTableau ();
}