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Diffstat (limited to 'reladminif/dbobjectiditerator.hh')
| -rw-r--r-- | reladminif/dbobjectiditerator.hh | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/reladminif/dbobjectiditerator.hh b/reladminif/dbobjectiditerator.hh new file mode 100644 index 0000000..bb6ba78 --- /dev/null +++ b/reladminif/dbobjectiditerator.hh @@ -0,0 +1,108 @@ +/* +* This file is part of rasdaman community. +* +* Rasdaman community 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 3 of the License, or +* (at your option) any later version. +* +* Rasdaman community 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 rasdaman community. If not, see <http://www.gnu.org/licenses/>. +* +* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann / +rasdaman GmbH. +* +* For more information please see <http://www.rasdaman.org> +* or contact Peter Baumann via <baumann@rasdaman.com>. +*/ +/* + * 2007-may-10 CJ fixed compilation errors (gcc 4.1) +*/ + +#ifndef _DBOBJECtIdIterATOR_HH_ +#define _DBOBJECtIdIterATOR_HH_ + +template <class T> class DBObjectIdIterator; +template <class T> class DBRef; +class ObjectBroker; + +#include "lists.h" +//@ManMemo: Module: {\bf reladminif}. +/*@Doc: + +this object gets a set of oids. when an oid is accessed the iterator returns a DBRef to the oid. + +*/ + + +template<class T> +class DBObjectIdIterator + { + public: + DBObjectIdIterator(const std::set<DBRef<T>, std::less<DBRef<T> > >& oidlist); + /*@Doc: + constructs a new Iterator. the OIdSet will be deleted by the DBOBjectIdIterator. + there may be oids of objects with other classes present. you should be carefull + when using this feature - as in mddtypes/mddbasetypes/mdddim/domtypes + */ + + DBObjectIdIterator(const DBObjectIdIterator<T>& it); + /*@Doc: + */ + + ~DBObjectIdIterator(); + /*@Doc: + deletes the OIdSet passed to it in the constructor + */ + + void reset(); + /*@Doc: + resets the iterator to the beginning + */ + + bool not_done() const; + /*@Doc: + checks if there are more elements + */ + + void advance(); + /*@Doc: + advances the iterator one entry + */ + + DBRef<T> get_element() const; + /*@Doc: + returns an dbref<object> + */ + + private: + typename std::set<DBRef<T>, std::less<DBRef<T> > >::iterator myIter; + /*@Doc: + internal pointer where the iterator is + */ + + std::set<DBRef<T>, std::less<DBRef<T> > >* mySet; + /*@Doc: + the actual list which is used to lookup objects by the objectbroker + */ + + unsigned int counter; + /*@Doc: + holds the actual position in set + */ + }; + +#ifdef EARLY_TEMPLATE +#ifdef __EXECUTABLE__ +#include "dbobjectiditerator.cc" +#endif +#endif + +#endif + + |