[Roam-commit] SF.net SVN: roam: [75] Trunk/Source

[<jon...@us...>]

Revision: 75
          http://roam.svn.sourceforge.net/roam/?rev=75&view=rev
Author:   jonfroehlich
Date:     2007-04-12 15:41:01 -0700 (Thu, 12 Apr 2007)

Log Message:
-----------
added ReadOnlyHashtable (which is self-explanatory)
slight update to comment block in PriorityQueue (removed old comment lines)

Modified Paths:
--------------
    Trunk/Source/Roam.Common/Collections/PriorityQueue.cs
    Trunk/Source/Roam.Common/Roam.Common.csproj
    Trunk/Source/Roam.suo

Added Paths:
-----------
    Trunk/Source/Roam.Common/Collections/ReadOnlyHashtable.cs

Modified: Trunk/Source/Roam.Common/Collections/PriorityQueue.cs
===================================================================
--- Trunk/Source/Roam.Common/Collections/PriorityQueue.cs	2007-04-12 07:28:43 UTC (rev 74)
+++ Trunk/Source/Roam.Common/Collections/PriorityQueue.cs	2007-04-12 22:41:01 UTC (rev 75)
@@ -28,9 +28,6 @@
     /// Note that the value which is used by the priority queue to compare items
     /// must be immutable
     /// </summary>
-    /// <summary>
-    /// 
-    /// </summary>
     /// <remarks>
     /// 
     /// </remarks>

Added: Trunk/Source/Roam.Common/Collections/ReadOnlyHashtable.cs
===================================================================
--- Trunk/Source/Roam.Common/Collections/ReadOnlyHashtable.cs	                        (rev 0)
+++ Trunk/Source/Roam.Common/Collections/ReadOnlyHashtable.cs	2007-04-12 22:41:01 UTC (rev 75)
@@ -0,0 +1,86 @@
+#region Copyright & License
+//
+// Copyright (c) 2005 - 2007 The Regents of the University of Washington, Intel
+// Research Seattle, and the Roam project. All rights reserved.
+//
+// This software is open-source under the BSD license. You may obtain a copy
+// of this license at
+//
+// http://roam.sourceforge.net/license.txt
+//
+// Alternatively, please see "license.txt" which should be included in 
+// this source code distribution.
+//
+#endregion Copyright & License
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Collections;
+
+namespace Roam.Common.Collections
+{
+    /// <summary>
+    /// Read only hashtable.
+    /// </summary>
+    /// <remarks>
+    /// 
+    /// </remarks>
+    /// <author>Jon Froehlich</author>
+    public class ReadOnlyHashtable : Hashtable
+    {
+        public ReadOnlyHashtable(IDictionary d)
+            : base()
+        {
+            foreach (DictionaryEntry de in d)
+            {
+                base.Add(de.Key, de.Value);
+            }
+        }
+
+        #region Properties
+        public override bool IsReadOnly
+        {
+            get { return true; }
+        }
+
+        public override bool IsFixedSize
+        {
+            get { return true; }
+        }
+
+        public override object this[object key]
+        {
+            get
+            {
+                return base[key];
+            }
+            set
+            {
+                ThrowReadonlyException(string.Empty);
+            }
+        }
+        #endregion Properties
+
+        #region Methods
+        public override void Clear()
+        {
+            ThrowReadonlyException("Clear failed. ");
+        }
+
+        public override void Add(object key, object value)
+        {
+            ThrowReadonlyException("Add failed. ");
+        }
+
+        public override void Remove(object key)
+        {
+            ThrowReadonlyException("Remove failed. ");
+        }
+
+        protected virtual void ThrowReadonlyException(string prefix)
+        {
+            throw new InvalidOperationException(prefix + "The ReadOnlyHashtable is readonly");
+        }
+        #endregion Methods
+    }
+}

Modified: Trunk/Source/Roam.Common/Roam.Common.csproj
===================================================================
--- Trunk/Source/Roam.Common/Roam.Common.csproj	2007-04-12 07:28:43 UTC (rev 74)
+++ Trunk/Source/Roam.Common/Roam.Common.csproj	2007-04-12 22:41:01 UTC (rev 75)
@@ -63,6 +63,7 @@
     <Compile Include="Collections\DfsTreeWalker.cs" />
     <Compile Include="Collections\HashSet.cs" />
     <Compile Include="Collections\PriorityQueue.cs" />
+    <Compile Include="Collections\ReadOnlyHashtable.cs" />
     <Compile Include="Collections\ReverseComparer.cs" />
     <Compile Include="Collections\ReverseEnumerator.cs" />
     <Compile Include="Collections\Tree.cs" />

Modified: Trunk/Source/Roam.suo
===================================================================
(Binary files differ)


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