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/* readonlysortedmap.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>
*/
/**
* Read-only view for {@link SortedMap} collections.
*
* This class decorates any class which implements the {@link SortedMap} interface
* by making it read only. Any method which normally modify data will throw an
* error.
*
* @see SortedMap
*/
internal class Gee.ReadOnlySortedMap<K,V> : ReadOnlyMap<K,V>, SortedMap<K,V> {
/**
* Constructs a read-only map that mirrors the content of the specified map.
*
* @param map the map to decorate.
*/
public ReadOnlySortedMap (Map<K,V> map) {
base (map);
}
/**
* {@inheritDoc}
*/
public SortedMap<K,V> head_map (K before) {
return (_map as SortedMap<K,V>).head_map (before).read_only_view;
}
/**
* {@inheritDoc}
*/
public SortedMap<K,V> tail_map (K after) {
return (_map as SortedMap<K,V>).tail_map (after).read_only_view;
}
/**
* {@inheritDoc}
*/
public SortedMap<K,V> sub_map (K from, K to) {
return (_map as SortedMap<K,V>).sub_map (from, to).read_only_view;
}
/**
* {@inheritDoc}
*/
public SortedSet<K> ascending_keys {
owned get {
return (_map as SortedMap<K,V>).ascending_keys.read_only_view;
}
}
/**
* {@inheritDoc}
*/
public SortedSet<Map.Entry<K,V>> ascending_entries {
owned get {
return (_map as SortedMap<K,V>).ascending_entries.read_only_view;
}
}
}
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