Added a new "Binary" comb provider

src/RT.Comb/CombProvider/BinaryCombProvider.cs

@@ -0,0 +1,47 @@
+using System;
+/*
+	Copyright 2015-2021 Richard S. Tallent, II
+
+	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.
+*/
+
+namespace RT.Comb {
+
+	public class BinaryCombProvider : BaseCombProvider {
+
+		public BinaryCombProvider(ICombDateTimeStrategy dateTimeStrategy, TimestampProvider? customTimestampProvider = null, GuidProvider? customGuidProvider = null) : base(dateTimeStrategy, customTimestampProvider, customGuidProvider) { }
+
+		public override Guid Create(Guid value, DateTime timestamp) {
+#if NET5_0_OR_GREATER || NETSTANDARD2_1
+			Span<byte> gbytes = stackalloc byte[16];
+			value.TryWriteBytes(gbytes);
+#else
+			var gbytes = value.ToByteArray();
+#endif
+			_dateTimeStrategy.WriteDateTime(gbytes, timestamp);
+			return new Guid(gbytes);
+		}
+
+		public override DateTime GetTimestamp(Guid comb) {
+#if NET5_0_OR_GREATER || NETSTANDARD2_1
+			Span<byte> gbytes = stackalloc byte[16];
+			comb.TryWriteBytes(gbytes);
+#else
+			var gbytes = comb.ToByteArray();
+#endif
+			return _dateTimeStrategy.ReadDateTime(gbytes);
+		}
+
+	}
+
+}

src/RT.Comb/StaticProviders/StaticProviders.cs

@@ -20,6 +20,8 @@ public static class Provider {
 		public static readonly ICombProvider Legacy = new SqlCombProvider(new SqlDateTimeStrategy());
 		public static readonly ICombProvider Sql = new SqlCombProvider(new UnixDateTimeStrategy());
 		public static readonly ICombProvider PostgreSql = new PostgreSqlCombProvider(new UnixDateTimeStrategy());
+		public static readonly ICombProvider Oracle = new BinaryCombProvider(new UnixDateTimeStrategy());
+		public static readonly ICombProvider SqliteBinary = new BinaryCombProvider(new UnixDateTimeStrategy());
 	}
 
 }