connectorinterface.h

#ifndef ICONNECTOR_H
#define ICONNECTOR_H

#include "Kernel_global.h"
#include <QExplicitlySharedDataPointer>

namespace Ilwis {

class IlwisObject;
class ConnectorFactory;
class Resource;
class Grid;
class OperationExpression;
class ExecutionContext;

class KERNELSHARED_EXPORT ConnectorInterface {
public:
    virtual ~ConnectorInterface() {}
    virtual bool loadMetaData(IlwisObject* ) { return false;}

    virtual Grid* loadGridData(IlwisObject*) { return 0;}
    virtual bool loadData(IlwisObject* ) { return false; }
    virtual bool dataIsLoaded() const { return false; }
    virtual bool store(IlwisObject *, int ) { return false; }

    virtual bool execute(const OperationExpression& , ExecutionContext *) { return false; }
    virtual bool isReadOnly() { return true; }

    virtual ConnectorInterface* clone() const { return 0; }
    virtual Resource& source() = 0;
    virtual QString provider() const = 0;
    virtual void format(const QString&) {}
    virtual QString format() const { return sUNDEF; }
    virtual bool isValid() const { return true;}
    virtual bool canUse(const Resource& ) const { return true; }

};


typedef ConnectorInterface* (*ConnectorCreate)(const Resource& resource, bool load,const PrepareOptions& options);
}

#endif // ICONNECTOR_H