No.

Currently, the SDK does not provide such APIs. You need to encapsulate the service codes for uploading, downloading, or copying objects in a batch by yourself. The procedure is as follows:

1. List all objects to be uploaded, downloaded, or copied. For details about how to list objects to be downloaded, see Listing Objects.
2. Call the API for uploading, downloading, or copying a single object for the listed objects.

Sample code:

String endPoint = "https://your-endpoint";
String ak = "*** Provide your Access Key ***";
String sk = "*** Provide your Secret Key ***";
final String bucketName = "bucketname";
// Define the prefix of objects in a bucket.
final String objectPre = "object/";
// Folder to be uploaded
final String localDirPath = "localDirPath";
final List<File> list = new ArrayList<>();
// Scan all objects in the folder.
static void listFiles(File file){
    File[] fs = file.listFiles();
    assert fs != null;
    if (fs.length < 1){
        // If an empty folder needs to be uploaded, add it to the list.
        list.add(file);
    }else{
        for (File f:fs){
            if (f.isDirectory()){
                listFiles(f);
            }
            if (f.isFile()){
                // Add objects to be uploaded to the list.
                list.add(f);
            }
        }
    }
}
// Traverse the folder to be uploaded and obtain all objects to be uploaded.
File file = new File(localDirPath);
listFiles(file);

// Create an instance of ObsClient.
final ObsClient obsClient = new ObsClient(ak, sk, endPoint);

// Initialize the thread pool.
ExecutorService executorService = Executors.newFixedThreadPool(20);

// Concurrently upload parts.
for (File f:list){
    executorService.execute(() -> {
        if (f.isDirectory()){
            // For empty folders, create empty folder objects in the bucket.
            String remoteObjectKey = objectPre + f.getPath().substring(localDirPath.length() + 1) + "/";
            obsClient.putObject(bucketName, remoteObjectKey, new ByteArrayInputStream(new byte[0]));
        }else{
            String remoteObjectKey = objectPre + f.getPath().substring(localDirPath.length() + 1);
            obsClient.putObject(bucketName, remoteObjectKey, new File(f.getPath()));
        }
    });
}

// Wait until the upload is complete.
executorService.shutdown();
while (!executorService.isTerminated())
{
    try
    {
        executorService.awaitTermination(5, TimeUnit.SECONDS);
    }
    catch (InterruptedException e)
    {
        e.printStackTrace();
    }
}
// Close obsClient.
try {
    obsClient.close();
} catch (IOException e) {
    e.printStackTrace();
}

You can use multiple threads to concurrently upload, download, and copy data to improve efficiency.