1 files changed, 47 insertions, 0 deletions
diff --git a/qpid/dotnet/Qpid.Common/Framing/IDataBlock.cs b/qpid/dotnet/Qpid.Common/Framing/IDataBlock.cs
new file mode 100644
index 0000000000..c61ed90d10
--- /dev/null
+++ b/qpid/dotnet/Qpid.Common/Framing/IDataBlock.cs
@@ -0,0 +1,47 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+using Apache.Qpid.Buffer;
+
+namespace Apache.Qpid.Framing
+{
+    /// <summary>
+    /// A data block represents something that has a size in bytes and the ability to write itself to a byte
+    /// buffer (similar to a byte array). It represents "top level" frames in the protocol specification.
+    /// </summary>
+    public interface IDataBlock : IEncodableAMQDataBlock
+    {
+        /// <summary>
+        /// Get the size of buffer needed to store the byte representation of this
+        /// frame.
+        /// </summary>
+        /// <returns>size in bytes</returns>        
+        uint Size
+        {
+            get;
+        }
+
+        /// <summary>
+        /// Writes the datablock to the specified buffer.
+        /// </summary>
+        /// <param name="buffer">The buffer to write to. Must be the correct size.</param>
+        void WritePayload(ByteBuffer buffer);
+    }
+}