List keyspaces (Java)

Lists all keyspaces in a database.

Result

Returns the keyspace names as a Set of strings.

Parameters

Use the listKeyspaceNames method, which belongs to the com.datastax.astra.client.admin.DatabaseAdmin class.

Method signature

Set<String> listKeyspaceNames()

This method does not accept any parameters.

Examples

The following examples demonstrate how to list keyspaces.

List keyspaces

import com.datastax.astra.client.DataAPIClient;
import com.datastax.astra.client.DataAPIClients;
import com.datastax.astra.client.admin.DatabaseAdmin;
import com.datastax.astra.client.databases.Database;
import java.util.Set;

public class Example {

  public static void main(String[] args) {
    // Get a database
    DataAPIClient client = DataAPIClients.clientHCD("USERNAME", "PASSWORD");
    Database database = client.getDatabase("API_ENDPOINT", "KEYSPACE_NAME");

    // Get an admin object
    DatabaseAdmin admin = database.getDatabaseAdmin();

    // List keyspaces
    Set<String> keyspaces = admin.listKeyspaceNames();
    System.out.println(keyspaces);
  }
}

Client reference

For more information, see the client reference.