@java.lang.Override
      public int getModeValue() {
        return mode_;
      }
<pre>
Specifies how each file's mode attribute should be handled by the transfer.
By default, mode is not preserved. Only applicable to transfers involving
POSIX file systems, and ignored for other transfers.
</pre>

<code>.google.storagetransfer.v1.MetadataOptions.Mode mode = 2;</code>

@return The enum numeric value on the wire for mode.
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java