[Nhibernate-commit] SF.net SVN: nhibernate:[5471] trunk/nhibernate/src/NHibernate/Dialect

[<pa...@us...>]

Revision: 5471
          http://nhibernate.svn.sourceforge.net/nhibernate/?rev=5471&view=rev
Author:   patearl
Date:     2011-03-14 04:14:41 +0000 (Mon, 14 Mar 2011)

Log Message:
-----------
Dialect method to get longest storage type for a specified DbType.

Modified Paths:
--------------
    trunk/nhibernate/src/NHibernate/Dialect/Dialect.cs
    trunk/nhibernate/src/NHibernate/Dialect/TypeNames.cs

Modified: trunk/nhibernate/src/NHibernate/Dialect/Dialect.cs
===================================================================
--- trunk/nhibernate/src/NHibernate/Dialect/Dialect.cs	2011-03-13 23:44:34 UTC (rev 5470)
+++ trunk/nhibernate/src/NHibernate/Dialect/Dialect.cs	2011-03-14 04:14:41 UTC (rev 5471)
@@ -449,6 +449,16 @@
 			return result;
 		}
 
+		/// <summary>
+		/// Gets the name of the longest registered type for a particular DbType.
+		/// </summary>
+		/// <param name="dbType"></param>
+		/// <returns></returns>
+		public virtual string GetLongestTypeName(DbType dbType)
+		{
+			return typeNames.GetLongest(dbType);
+		}
+
 		/// <summary> 
 		/// Get the name of the database type appropriate for casting operations
 		/// (via the CAST() SQL function) for the given <see cref="SqlType"/> typecode.

Modified: trunk/nhibernate/src/NHibernate/Dialect/TypeNames.cs
===================================================================
--- trunk/nhibernate/src/NHibernate/Dialect/TypeNames.cs	2011-03-13 23:44:34 UTC (rev 5470)
+++ trunk/nhibernate/src/NHibernate/Dialect/TypeNames.cs	2011-03-14 04:14:41 UTC (rev 5471)
@@ -93,6 +93,23 @@
 			return Replace(Get(typecode), size, precision, scale);
 		}
 
+		/// <summary>
+		/// For types with a simple length, this method returns the definition
+		/// for the longest registered type.
+		/// </summary>
+		/// <param name="typecode"></param>
+		/// <returns></returns>
+		public string GetLongest(DbType typecode)
+		{
+			SortedList<int, string> map;
+			weighted.TryGetValue(typecode, out map);
+
+			if (map != null && map.Count > 0)
+				return Replace(map.Values[map.Count - 1], map.Keys[map.Count - 1], 0, 0);
+
+			return Get(typecode);
+		}
+
 		private static string Replace(string type, int size, int precision, int scale)
 		{
 			type = StringHelper.ReplaceOnce(type, LengthPlaceHolder, size.ToString());


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