Patch: Adds preview support for Patch API (#2308)

This adds the patch API to the public preview SDK.

Author: deparash

Microsoft.Azure.Cosmos/src/Batch/TransactionalBatch.cs

@@ -206,7 +206,7 @@ public abstract TransactionalBatch DeleteItem(
             string id,
             TransactionalBatchItemRequestOptions requestOptions = null);
 
-#if INTERNAL
+#if PREVIEW
         /// <summary>
         /// Adds an operation to patch an item into the batch.
         /// </summary>

Microsoft.Azure.Cosmos/src/Batch/TransactionalBatchInternal.cs

@@ -11,7 +11,7 @@ namespace Microsoft.Azure.Cosmos
 
     internal abstract class TransactionalBatchInternal : TransactionalBatch
     {
-#if !INTERNAL
+#if !PREVIEW
         /// <summary>
         /// Adds an operation to patch an item into the batch.
         /// </summary>

Microsoft.Azure.Cosmos/src/Batch/TransactionalBatchPatchItemRequestOptions.cs

@@ -11,7 +11,7 @@ namespace Microsoft.Azure.Cosmos
     /// <summary>
     /// Cosmos Batch Patch request options
     /// </summary>
-#if INTERNAL
+#if PREVIEW
     public
 #else
     internal

Microsoft.Azure.Cosmos/src/Patch/PatchOperation.cs

@@ -10,7 +10,7 @@ namespace Microsoft.Azure.Cosmos
     /// <summary>
     /// Details of Patch operation that is to be applied to the referred Cosmos item.
     /// </summary>
-#if INTERNAL
+#if PREVIEW
     public
 #else
     internal

Microsoft.Azure.Cosmos/src/Patch/PatchOperationType.cs

@@ -12,7 +12,7 @@ namespace Microsoft.Azure.Cosmos
     /// Type of Patch operation.
     /// </summary>
     [JsonConverter(typeof(StringEnumConverter))]
-#if INTERNAL
+#if PREVIEW
     public
 #else
     internal

Microsoft.Azure.Cosmos/src/Patch/PatchOperation{T}.cs

@@ -10,7 +10,7 @@ namespace Microsoft.Azure.Cosmos
     /// Defines PatchOperation with a value parameter.
     /// </summary>
     /// <typeparam name="T">Data type of value provided for PatchOperation.</typeparam>
-#if INTERNAL
+#if PREVIEW
     public
 #else
     internal

Microsoft.Azure.Cosmos/src/RequestOptions/PatchItemRequestOptions.cs

@@ -11,7 +11,7 @@ namespace Microsoft.Azure.Cosmos
     /// <summary>
     /// Cosmos Patch request options
     /// </summary>
-#if INTERNAL
+#if PREVIEW
     public
 #else
     internal

Microsoft.Azure.Cosmos/src/Resource/Container/Container.cs

@@ -632,7 +632,7 @@ public abstract Task<ItemResponse<T>> ReplaceItemAsync<T>(
             ItemRequestOptions requestOptions = null,
             CancellationToken cancellationToken = default);
 
-#if INTERNAL
+#if PREVIEW
         /// <summary>
         /// Patches an item in the Azure Cosmos service as an asynchronous operation.
         /// </summary>

Microsoft.Azure.Cosmos/src/Resource/Container/ContainerInternal.cs

@@ -125,6 +125,13 @@ public static void ValidatePartitionKey(object partitionKey, RequestOptions requ
         }
 
 #if !INTERNAL
+        public abstract Task<ResponseMessage> DeleteAllItemsByPartitionKeyStreamAsync(
+               Cosmos.PartitionKey partitionKey,
+               RequestOptions requestOptions = null,
+               CancellationToken cancellationToken = default(CancellationToken));
+#endif
+
+#if !PREVIEW
         public abstract Task<ResponseMessage> PatchItemStreamAsync(
             string id,
             PartitionKey partitionKey,
@@ -139,13 +146,6 @@ public abstract Task<ItemResponse<T>> PatchItemAsync<T>(
             PatchItemRequestOptions requestOptions = null,
             CancellationToken cancellationToken = default);
 
-        public abstract Task<ResponseMessage> DeleteAllItemsByPartitionKeyStreamAsync(
-               Cosmos.PartitionKey partitionKey,
-               RequestOptions requestOptions = null,
-               CancellationToken cancellationToken = default(CancellationToken));
-#endif
-
-#if !PREVIEW
         public abstract Task<IReadOnlyList<FeedRange>> GetFeedRangesAsync(CancellationToken cancellationToken = default);
 
         public abstract FeedIterator GetChangeFeedStreamIterator(