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/* treemultimap.vala
*
* Copyright (C) 2009 Didier Villevalois
*
* 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:
* Didier 'Ptitjes Villevalois <ptitjes@free.fr>
*/
/**
* Left-leaning red-black tree implementation of the {@link MultiMap}
* interface.
*/
public class Gee.TreeMultiMap<K,V> : AbstractMultiMap<K,V> {
public CompareFunc key_compare_func {
get { return ((TreeMap<K, Set<V>>) _storage_map).key_compare_func; }
}
public CompareFunc value_compare_func { private set; get; }
/**
* Constructs a new, empty tree multimap.
*
* If not provided, the functions parameters are requested to the
* {@link Functions} function factory methods.
*
* @param key_compare_func an optional key comparator function
* @param value_compare_func an optional value comparator function
*/
public TreeMultiMap (CompareFunc? key_compare_func = null, CompareFunc? value_compare_func = null) {
base (new TreeMap<K, Set<V>> (key_compare_func, direct_equal));
if (value_compare_func == null) {
value_compare_func = Functions.get_compare_func_for (typeof (V));
}
this.value_compare_func = value_compare_func;
}
protected override Collection<V> create_value_storage () {
return new TreeSet<V> (_value_compare_func);
}
protected override MultiSet<K> create_multi_key_set () {
return new TreeMultiSet<K> (key_compare_func);
}
protected override EqualFunc get_value_equal_func () {
return Functions.get_equal_func_for (typeof (V));
}
}
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