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