WRT::IIterable Class Reference

#include <mw/cwrt/iterable.h>

class WRT::IIterable

Public Member Functions
pure virtual void	close()
pure virtual bool	hasNext()
pure virtual QVariant	next()
pure virtual void	reset()

Detailed Description

Interface class for iterable interface implemented by service provider.

Note, when service provider implments this interface, it must derive from this interface and QObject. e.g. CMyCollection : public QObject, public IIterable { public: CMyCollection(); .... }

Member Function Documentation

close ( )

void

(

)

[pure virtual]

Free resources in the collection The service provider should provide a concrete implementation for this method.

hasNext ( )

bool

hasNext

(

)

[pure virtual]

Check if there is next item available

The service provider should provide a concrete implementation for this method.

Return Value: false if there are no more data elements to be fetched; true otherwise

next ( )

QVariant

(

)

[pure virtual]

Get current item in the collection and get ready for next item.

The service provider should provide a concrete implementation for this method.

Return Value: current data entry

reset ( )

void

reset

(

)

[pure virtual]

Resets the iterator

The service provider should provide a concrete implementation to reset the iterator.