@java.lang.Override
    public boolean hasAwsS3CompatibleDataSource() {
      return dataSourceCase_ == 19;
    }
<pre>
An AWS S3 compatible data source.
</pre>

<code>.google.storagetransfer.v1.AwsS3CompatibleData aws_s3_compatible_data_source = 19;
</code>

@return Whether the awsS3CompatibleDataSource field is set.
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java