//
// SynchronizedKeyedCollection.cs
//
// Author:
// Atsushi Enomoto <atsushi@ximian.com>
//
// Copyright (C) 2005 Novell, Inc. http://www.novell.com
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.ServiceModel.Channels;
namespace System.Collections.Generic{
[ComVisibleAttribute (false)]
public abstract class SynchronizedKeyedCollection<K, T>
: SynchronizedCollection<T>
{
Dictionary<K, T> dict;
protected SynchronizedKeyedCollection ()
: this (new object ())
{
}
protected SynchronizedKeyedCollection (object syncRoot)
: base (syncRoot)
{
dict = new Dictionary<K, T> ();
}
protected SynchronizedKeyedCollection (object syncRoot,
IEqualityComparer<K> comparer)
: base (syncRoot)
{
dict = new Dictionary<K, T> (comparer);
}
protected SynchronizedKeyedCollection (object syncRoot,
IEqualityComparer<K> comparer, int capacity)
: base (syncRoot)
{
dict = new Dictionary<K, T> (capacity, comparer);
}
// see bug #76417
/*
public T this [int index] {
get { return base [index]; }
set { base [index] = value; }
}
*/
public T this [K key] {
get {
lock (SyncRoot) {
return dict [key];
}
}
}
protected IDictionary<K, T> Dictionary {
get { return dict; }
}
public bool Contains (K key)
{
lock (SyncRoot) {
return dict.ContainsKey (key);
}
}
public bool Remove (K key)
{
lock (SyncRoot) {
return dict.Remove (key);
}
}
protected void ChangeItemKey (T item, K newKey)
{
lock (SyncRoot) {
K old = GetKeyForItem (item);
dict [old] = default (T);
dict [newKey] = item;
}
}
[MonoTODO ("This lock is not an atomic.")]
protected override void ClearItems ()
{
base.ClearItems ();
lock (SyncRoot) {
dict.Clear ();
}
}
protected abstract K GetKeyForItem (T item);
[MonoTODO ("This lock is not an atomic.")]
protected override void InsertItem (int index, T item)
{
base.InsertItem (index, item);
dict.Add (GetKeyForItem (item), item);
}
[MonoTODO ("This lock is not an atomic.")]
protected override void RemoveItem (int index)
{
K key = GetKeyForItem (base [index]);
base.RemoveItem (index);
dict.Remove (key);
}
[MonoTODO ("This lock is not an atomic.")]
protected override void SetItem (int index, T item)
{
base.SetItem (index, item);
dict [GetKeyForItem (item)] = item;
}
}
}
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