core/sql/optimizer/OptHints.cpp

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/* -*-C++-*- */

#include "OptHints.h"

Hint::Hint(const NAString &indexName, NAMemory *h) 
  : indexes_(h,1), selectivity_(-1.0), cardinality_(-1.0)
{ indexes_.insert(indexName); }

Hint::Hint(double c, double s, NAMemory *h) 
  : indexes_(h,0), selectivity_(s), cardinality_(c)
{ }

Hint::Hint(double s, NAMemory *h) 
  : indexes_(h,0), selectivity_(s), cardinality_(-1.0)
{ }

Hint::Hint(NAMemory *h) 
  : indexes_(h,0), selectivity_(-1.0), cardinality_(-1.0)
{ }

Hint::Hint(const Hint &hint, NAMemory *h) 
  : indexes_(hint.indexes_, h), selectivity_(hint.selectivity_), 
    cardinality_(hint.cardinality_)
{}

NABoolean Hint::hasIndexHint(const NAString &xName)
{ return indexes_.contains(xName); }

Hint* Hint::addIndexHint(const NAString &indexName)
{ 
  indexes_.insert(indexName); 
  return this;
}