casa6

/*

 * VisBufferImpl2Internal.h

 *

 *  Created on: Aug 22, 2013

 *      Author: jjacobs

 */

​

#ifndef VISBUFFERIMPL2INTERNAL_H_

#define VISBUFFERIMPL2INTERNAL_H_

​

#include <msvis/MSVis/ViImplementation2.h>

#include <cassert>

#include <sstream>

​

namespace casa {

​

namespace ms {

    class Vbi2MsRow;

}

​

namespace vi {

​

//////////////////////////////////////////////////////////

//

// Auxiliary Classes are contained in the "vb" namespace.

//

// These include VbCacheItemBase, VbCacheItem, VisBufferCache

// and VisBufferState.

​

​

​

​

// Possible array shapes of data coming from the main table cells.

​

typedef enum {NoCheck, Nr, NfNr, NcNr, NcNfNr, Ns, NsNcNr, NsNcNfNr, NcNfNcatNr, I3Nr, N_ShapePatterns} ShapePattern;

​

class VisBufferCache;

​

class VbCacheItemBase {

​

    // Provides a common base class for all of the cached value classes.

    // This is required because the actualy value classes use a template

    // to capture the underlying value type.

​

    friend class VisBufferImpl2;

​

public:

​

    VbCacheItemBase (bool isMutable)

    : isKey_p (false),

      isMutable_p (isMutable),

      vbComponent_p (VisBufferComponent2::Unknown),

      vb_p (0) {}

​

    virtual ~VbCacheItemBase () {}

​

    virtual void appendRows (casacore::rownr_t nRowsToAdd, casacore::Bool truncate = false) = 0;

    virtual void clear (casacore::Bool clearStatusOnly = false) = 0;

    virtual void clearDirty () = 0;

    virtual void copyRowElement (casacore::Int sourceRow, casacore::Int destinationRow) = 0;

    virtual void fill () const = 0;

    VisBufferComponent2

    getComponent () const

    {

        return vbComponent_p;

    }

    virtual casacore::Bool isArray () const = 0;

    virtual casacore::Bool isDirty () const = 0;

    virtual casacore::Bool isPresent () const = 0;

    virtual casacore::Bool isShapeOk () const = 0;

    virtual void resize (casacore::Bool /*copyValues*/) {}

    virtual void setDirty () = 0;

    virtual casacore::String shapeErrorMessage () const = 0;

​

protected:

​

    virtual void copy (const VbCacheItemBase * other, casacore::Bool fetchIfNeeded) = 0;

​

    VisBufferImpl2 * getVb () const

    {

        return vb_p;

    }

​

    virtual void initialize (VisBufferCache * cache, VisBufferImpl2 * vb, VisBufferComponent2 component,

                             casacore::Bool isKey = true);

​

    casacore::Bool isKey () const { return isKey_p;}

    bool isMutable () const { return isMutable_p; }

​

    virtual void setAsPresent (casacore::Bool isPresent = true) const = 0;

    void setIsKey (casacore::Bool isKey)