|| || || || || || || ||

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MakeFilter.h

Go to the documentation of this file.

#ifndef Impala_Core_Column_MakeFilter_h
#define Impala_Core_Column_MakeFilter_h

#include "Core/Column/InvalidColumn.h"

namespace Impala
{
namespace Core
{
namespace Column
{


template <class C>
inline void
MakeFilter(bool*& filter, C* col, bool defaultValue)
{
    if (filter == 0)
        filter = new bool[col->Capacity()];
    for (int i=0 ; i<col->Capacity() ; i++)
        filter[i] = defaultValue;
}

inline void
MakeFilter(bool*& filter, InvalidColumn* col)
{
    // ignore
}


template <class C>
inline void
MakeFilterEqual(bool*& filter, C* col, bool defaultValue,
                typename C::ColElemType elem)
{
    if (filter == 0)
        filter = new bool[col->Capacity()];
    for (int i=0 ; i<col->Capacity() ; i++)
        filter[i] = (col->Get(i) == elem) ? !defaultValue : defaultValue;
}

inline void
MakeFilterEqual(bool*& filter, InvalidColumn* col, int elem)
{
    // ignore
}

} // namespace Column
} // namespace Core
} // namespace Impala

#endif

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