realized I should add Is*Present methods to interfaces as well

Author: Vlad Ionescu

src/client/api/IBasicProperties.cs

@@ -162,6 +162,48 @@ public interface IBasicProperties : IContentHeader
         ///<summary> Clear the ClusterId property. </summary>
         void ClearClusterId();
 
+        ///<summary> Returns true iff the ContentType property is present. </summary>
+        bool IsContentTypePresent();
+
+        ///<summary> Returns true iff the ContentEncoding property is present. </summary>
+        bool IsContentEncodingPresent();
+
+        ///<summary> Returns true iff the Headers property is present. </summary>
+        bool IsHeadersPresent();
+
+        ///<summary> Returns true iff the DeliveryMode property is present. </summary>
+        bool IsDeliveryModePresent();
+
+        ///<summary> Returns true iff the Priority property is present. </summary>
+        bool IsPriorityPresent();
+
+        ///<summary> Returns true iff the CorrelationId property is present. </summary>
+        bool IsCorrelationIdPresent();
+
+        ///<summary> Returns true iff the ReplyTo property is present. </summary>
+        bool IsReplyToPresent();
+
+        ///<summary> Returns true iff the Expiration property is present. </summary>
+        bool IsExpirationPresent();
+
+        ///<summary> Returns true iff the MessageId property is present. </summary>
+        bool IsMessageIdPresent();
+
+        ///<summary> Returns true iff the Timestamp property is present. </summary>
+        bool IsTimestampPresent();
+
+        ///<summary> Returns true iff the Type property is present. </summary>
+        bool IsTypePresent();
+
+        ///<summary> Returns true iff the UserId property is present. </summary>
+        bool IsUserIdPresent();
+
+        ///<summary> Returns true iff the AppId property is present. </summary>
+        bool IsAppIdPresent();
+
+        ///<summary> Returns true iff the ClusterId property is present. </summary>
+        bool IsClusterIdPresent();
+
         ///<summary>Convenience property; parses ReplyTo property
         ///using PublicationAddress.Parse, and serializes it using
         ///PublicationAddress.ToString. Returns null if ReplyTo property

src/client/api/IFileProperties.cs

@@ -131,5 +131,32 @@ public interface IFileProperties : IContentHeader
 
         ///<summary> Clear the ClusterId property. </summary>
         void ClearClusterId();
+
+        ///<summary> Returns true iff the ContentType property is present. </summary>
+        bool IsContentTypePresent();
+
+        ///<summary> Returns true iff the ContentEncoding property is present. </summary>
+        bool IsContentEncodingPresent();
+
+        ///<summary> Returns true iff the Headers property is present. </summary>
+        bool IsHeadersPresent();
+
+        ///<summary> Returns true iff the Priority property is present. </summary>
+        bool IsPriorityPresent();
+
+        ///<summary> Returns true iff the ReplyTo property is present. </summary>
+        bool IsReplyToPresent();
+
+        ///<summary> Returns true iff the MessageId property is present. </summary>
+        bool IsMessageIdPresent();
+
+        ///<summary> Returns true iff the Filename property is present. </summary>
+        bool IsFilenamePresent();
+
+        ///<summary> Returns true iff the Timestamp property is present. </summary>
+        bool IsTimestampPresent();
+
+        ///<summary> Returns true iff the ClusterId property is present. </summary>
+        bool IsClusterIdPresent();
     }
 }

src/client/api/IStreamProperties.cs

@@ -106,6 +106,21 @@ public interface IStreamProperties : IContentHeader
         void ClearPriority();
 
         ///<summary> Clear the Timestamp property. </summary>
-        void ClearTimestamp();
+        void ClearTimestamp();
+
+        ///<summary> Returns true iff the ContentType property is present. </summary>
+        bool IsContentTypePresent();
+
+        ///<summary> Returns true iff the ContentEncoding property is present. </summary>
+        bool IsContentEncodingPresent();
+
+        ///<summary> Returns true iff the Headers property is present. </summary>
+        bool IsHeadersPresent();
+
+        ///<summary> Returns true iff the Priority property is present. </summary>
+        bool IsPriorityPresent();
+
+        ///<summary> Returns true iff the Timestamp property is present. </summary>
+        bool IsTimestampPresent();
     }
 }