casa6

/*

 * Vbi2MsRow.h

 *

 *  Created on: Aug 22, 2013

 *      Author: jjacobs

 */

​

#ifndef VBI2MSROW_H_

#define VBI2MSROW_H_

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#include <casacore/casa/Arrays/Array.h>

#include <msvis/MSVis/MsRows.h>

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// Forward Decls

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namespace casa {

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namespace vi {

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class VisBufferImpl2;

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}

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}

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namespace casa {

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namespace ms {

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class CachedArrayBase {

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public:

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    CachedArrayBase () : cached_p (false) {}

    virtual ~CachedArrayBase () {}

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    void clearCache () { cached_p = false;}

​

protected:

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    casacore::Bool isCached () const { return cached_p;}

    void setCached () { cached_p = true;}

​

private:

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    casacore::Bool cached_p;

};

​

template <typename T>

class CachedPlane : public CachedArrayBase {

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public:

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typedef const casacore::Cube<T> & (casa::vi::VisBufferImpl2::* Accessor) () const;

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CachedPlane (Accessor accessor) : accessor_p (accessor) {}

​

casacore::Matrix<T> &

getCachedPlane (casa::vi::VisBufferImpl2 * vb, casacore::Int row)

{

    if (! isCached()){

​

        //cache_p.reference ((vb ->* accessor_p)().xyPlane (row)); // replace with something more efficient