#include <msp/core/attributes.h>
#include <msp/core/maputils.h>
+#include <msp/core/noncopyable.h>
#include <msp/core/refptr.h>
#include "collectionsource.h"
#include "loader.h"
between the collections, and are only deleted when all collections in the chain
have been destroyed.
*/
-class Collection
+class Collection: private NonCopyable
{
public:
/**
SourceList sources;
Collection *fallback;
- Collection(const Collection &);
- Collection &operator=(const Collection &);
public:
Collection();
virtual ~Collection();
return extract<NCT>(get_var(name, get_type<NCT>(name)));
}
+ /** Finds a typed object in the collection. Returns null if the name does
+ not exist. Throws if the name exists but the object is of an incorrect
+ type. */
+ template<typename T>
+ T *find(const std::string &name) const
+ {
+ ItemMap::const_iterator i = items.find(name);
+ return (i!=items.end() ? extract<typename RemoveConst<T>::Type>(i->second) : 0);
+ }
+
+ template<typename T>
+ T *find(const std::string &name)
+ {
+ typedef typename RemoveConst<T>::Type NCT;
+ const Variant *var = find_var(name, get_type<NCT>(name));
+ return (var ? &extract<NCT>(*var) : 0);
+ }
+
private:
const Variant &get_var(const std::string &, const CollectionItemTypeBase *);
+ const Variant *find_var(const std::string &, const CollectionItemTypeBase *);
template<typename T>
T &extract(const Variant &var) const;