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/* sortedset.vala
*
* Copyright (C) 2009-2011 Maciej Piechotka
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author:
* Maciej Piechotka <uzytkownik2@gmail.com>
*/
public interface Gee.SortedMap<K,V> : Gee.Map<K,V> {
/**
* Returns map containing pairs with key strictly lower the the argument.
*/
public abstract SortedMap<K,V> head_map (K before);
/**
* Returns map containing pairs with key equal or larger then the argument.
*/
public abstract SortedMap<K,V> tail_map (K after);
/**
* Returns right-open map (i.e. containing all pair which key is strictly
* lower then the second argument and equal or bigger then the first one).
*
* Null as one parameter means that it should include all from this side.
*/
public abstract SortedMap<K,V> sub_map (K before, K after);
/**
* Returns the keys in ascending order.
*/
public abstract SortedSet<K> ascending_keys { owned get; }
/**
* Returns the entries in ascending order.
*/
public abstract SortedSet<Map.Entry<K,V>> ascending_entries { owned get; }
/**
* The read-only view this map.
*/
public new abstract SortedMap<K,V> read_only_view { owned get; }
/**
* Returns an immutable empty map.
*
* @return an immutable empty map
*/
public static Map<K,V> empty<K,V> () {
return new TreeMap<K,V> ().read_only_view;
}
}
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