docs: add @TransportCompatibility to StorageBatch (#2276)

Author: BenWhitehead

google-cloud-storage/src/main/java/com/google/cloud/storage/StorageBatch.java

@@ -23,6 +23,7 @@
 import com.google.cloud.storage.Storage.BlobGetOption;
 import com.google.cloud.storage.Storage.BlobSourceOption;
 import com.google.cloud.storage.Storage.BlobTargetOption;
+import com.google.cloud.storage.TransportCompatibility.Transport;
 import com.google.cloud.storage.UnifiedOpts.Opts;
 import com.google.cloud.storage.spi.v1.RpcBatch;
 import com.google.cloud.storage.spi.v1.StorageRpc;
@@ -53,6 +54,7 @@
  * Blob blob = result.get(); // returns get result or throws StorageException
  * }</pre>
  */
+@TransportCompatibility(Transport.HTTP)
 public class StorageBatch {
 
   private final RpcBatch batch;
@@ -86,6 +88,7 @@ StorageOptions getOptions() {
    * {@code false} if the blob was not found, or throws a {@link StorageException} if the operation
    * failed.
    */
+  @TransportCompatibility(Transport.HTTP)
   public StorageBatchResult<Boolean> delete(
       String bucket, String blob, BlobSourceOption... options) {
     return delete(BlobId.of(bucket, blob), options);
@@ -97,6 +100,7 @@ public StorageBatchResult<Boolean> delete(
    * {@code false} if the blob was not found, or throws a {@link StorageException} if the operation
    * failed.
    */
+  @TransportCompatibility(Transport.HTTP)
   public StorageBatchResult<Boolean> delete(BlobId blob, BlobSourceOption... options) {
     StorageBatchResult<Boolean> result = new StorageBatchResult<>();
     RpcBatch.Callback<Void> callback = createDeleteCallback(result);
@@ -111,6 +115,7 @@ public StorageBatchResult<Boolean> delete(BlobId blob, BlobSourceOption... optio
    * {@link StorageBatchResult#get()} on the return value yields the updated {@link Blob} if
    * successful, or throws a {@link StorageException} if the operation failed.
    */
+  @TransportCompatibility(Transport.HTTP)
   public StorageBatchResult<Blob> update(BlobInfo blobInfo, BlobTargetOption... options) {
     StorageBatchResult<Blob> result = new StorageBatchResult<>();
     RpcBatch.Callback<StorageObject> callback = createUpdateCallback(this.options, result);
@@ -127,6 +132,7 @@ public StorageBatchResult<Blob> update(BlobInfo blobInfo, BlobTargetOption... op
    * {@code null} if no such blob exists, or throws a {@link StorageException} if the operation
    * failed.
    */
+  @TransportCompatibility(Transport.HTTP)
   public StorageBatchResult<Blob> get(String bucket, String blob, BlobGetOption... options) {
     return get(BlobId.of(bucket, blob), options);
   }
@@ -138,6 +144,7 @@ public StorageBatchResult<Blob> get(String bucket, String blob, BlobGetOption...
    * {@code null} if no such blob exists, or throws a {@link StorageException} if the operation
    * failed.
    */
+  @TransportCompatibility(Transport.HTTP)
   public StorageBatchResult<Blob> get(BlobId blob, BlobGetOption... options) {
     StorageBatchResult<Blob> result = new StorageBatchResult<>();
     RpcBatch.Callback<StorageObject> callback = createGetCallback(this.options, result);
@@ -147,6 +154,7 @@ public StorageBatchResult<Blob> get(BlobId blob, BlobGetOption... options) {
   }
 
   /** Submits this batch for processing using a single RPC request. */
+  @TransportCompatibility(Transport.HTTP)
   public void submit() {
     batch.submit();
   }