collection.h

#ifndef __SEAL_COLLECTION_H__
#define __SEAL_COLLECTION_H__

#include "iterator.h"
#include "exception.h"

namespace seal
{

template <typename T>
class Collection
{
public:

    Collection(void) {}

    virtual bool isEmpty(void) const = 0;

    virtual unsigned int size(void) const = 0;

    virtual AbstractIterator<T>* iteratorPtr(void) const = 0;

    virtual void purge(void) = 0;

    virtual T& first(void) throw (EmptyCollectionException) = 0;

    virtual const T& first(void) const throw (EmptyCollectionException) = 0;

    virtual T& last(void) throw (EmptyCollectionException) = 0;

    virtual const T& last(void) const throw (EmptyCollectionException) = 0;
}; // class Collection

} // End of namespace seal.

#endif // __SEAL_COLLECTION_H__

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