Collection.h

/*
 *  $Id$
 *  Collection class interface
 *
 *  This file is part of OTAWA
 *  Copyright (c) 2004-08, IRIT UPS.
 * 
 *  OTAWA is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  OTAWA is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with OTAWA; if not, write to the Free Software 
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
#ifndef ELM_DYNDATA_COLLECTION_H
#define ELM_DYNDATA_COLLECTION_H
 
#include "AbstractCollection.h"
 
namespace elm { namespace dyndata {
 
template <class T, class I>
class IterInst: public elm::dyndata::AbstractIter<T> {
public:
    inline IterInst(const I& i): _i(i) { }
    virtual ~IterInst(void) { }
    virtual bool ended(void) const { return _i.ended(); }
    virtual T item(void) const { return _i.item(); }
    virtual void next(void) { _i.next(); }
    inline const I& iter(void) const { return _i; }
private:
    I _i;
};
template <class T, class I>
inline IterInst<T, I> *iter(const I& i) { return new IterInst<T, I>(i); }
 
 
// Collection class
template <class T, class C>
class Collection: public virtual AbstractCollection<T> {
public:
    //inline C& collection(void) { return coll; }
    
    virtual ~Collection(void) { }
    virtual int count(void) { return coll.count(); }
    virtual bool contains(const T& item) const { return coll.contains(item); }
    virtual bool isEmpty(void) const { return coll.isEmpty(); }
    virtual Iter<T> items(void) const { return new IterInst<T, typename C::Iter>(coll.items()); }
 
protected:
    C coll;
};
 
// MutableCollection class
template <class T, class C>
class MutableCollection: public Collection<T, C>, public MutableAbstractCollection<T> {
public:
    virtual ~MutableCollection(void) { }
    virtual void clear(void) { Collection<T, C>::coll.clear(); }
    virtual void add(const T& item) { Collection<T, C>::coll.add(item); }
    virtual void addAll(const AbstractCollection<T>& coll)
        { for(auto iter = coll.items(); iter(); iter++) add(*iter); }
    virtual void remove(const T& item) { Collection<T, C>::coll.remove(item); }
    virtual void removeAll(const AbstractCollection<T>& coll)
        { for(auto iter = coll.items(); iter(); iter++) remove(iter); }
    virtual void remove(const Iter<T>& iter)
        { Collection<T, C>::coll.remove(static_cast<const IterInst<T, typename C::Iter> *>(iter.instance())->iter()); }
};
 
} } // elm::dyndata
 
#endif  // ELM_DYNDATA_COLLECTION_H