Package com.datastax.astra.client.admin

Class AstraDBDatabaseAdmin

java.lang.Object
com.datastax.astra.client.admin.AstraDBDatabaseAdmin
All Implemented Interfaces:
DatabaseAdmin
public class AstraDBDatabaseAdmin extends Object implements DatabaseAdmin
Implementation of the DatabaseAdmin interface for Astra. To create the namespace the devops APi is leverage. To use this class a higher token permission is required.

  • Constructor Details

    • AstraDBDatabaseAdmin

      public AstraDBDatabaseAdmin(String token, UUID databaseId, com.dtsx.astra.sdk.utils.AstraEnvironment env, DataAPIOptions options)
      Initialize a database admin from token and database id.
      Parameters:
      token - token value
      databaseId - database identifier
      env - working environment
      options - options used to initialize the http client

  • Method Details

    • getDatabaseInformations

      public com.dtsx.astra.sdk.db.domain.Database getDatabaseInformations()
      Find a database from its id.
      Returns:
      list of db matching the criteria

    • getDatabase

      public Database getDatabase(String namespaceName)
      Access teh database with the default token.
      Specified by:
      getDatabase in interface DatabaseAdmin
      Parameters:
      namespaceName - The name of the namespace (or keyspace) to retrieve. This parameter should match the exact name of the namespace as it exists in the database.
      Returns:
      client to interact with database DML.

    • getDatabase

      public Database getDatabase(String namespaceName, String tokenUser)
      Access teh database with the specialized token.
      Specified by:
      getDatabase in interface DatabaseAdmin
      Parameters:
      namespaceName - The name of the namespace (or keyspace) to retrieve. This parameter should match the exact name of the namespace as it exists in the database.
      tokenUser - token with reduce privileges compared to admin token in order to do dml options (CRUD).
      Returns:
      client to interact with database DML.

    • listNamespaceNames

      public Set<String> listNamespaceNames()
      Retrieves a stream of namespace names available in the current database. This method is essential for applications that need to enumerate all namespaces to perform operations such as displaying available namespaces to users, managing namespaces programmatically, or executing specific tasks within each namespace. The returned Stream facilitates efficient processing of namespace names, enabling operations like filtering, sorting, and mapping without the need for preloading all names into memory.

      Example usage:

       
 // Assuming 'client' is an instance of DataApiClient
 Stream<String> namespaceNames = client.listNamespaceNames());
 // Display names in the console
 namespaceNames.forEach(System.out::println);
      Specified by:
      listNamespaceNames in interface DatabaseAdmin
      Returns:
      A Set containing the names of all namespaces within the current database. The stream provides a flexible and efficient means to process the namespace names according to the application's needs.

    • findEmbeddingProviders

      public FindEmbeddingProvidersResult findEmbeddingProviders()
      Retrieve the list of embedding providers available in the current database. Embedding providers are services that provide embeddings for text, images, or other data types. This method returns a map of provider names to EmbeddingProvider instances, allowing applications to access and utilize the embedding services.

      Example usage:

       
 // Assuming 'client' is an instance of DataApiClient
 Map<String, EmbeddingProvider> providers = client.findEmbeddingProvidersAsMap());
      Specified by:
      findEmbeddingProviders in interface DatabaseAdmin
      Returns:
      list of available providers

    • createNamespace

      public void createNamespace(String namespace)
      Create a Namespace providing a name.
      Specified by:
      createNamespace in interface DatabaseAdmin
      Parameters:
      namespace - current namespace.

    • dropNamespace

      public void dropNamespace(String namespace)
      Drops (deletes) the specified namespace from the database. This operation is idempotent; it will not produce an error if the namespace does not exist. This method is useful for cleaning up data or removing entire keyspaces as part of database maintenance or restructuring. Caution should be exercised when using this method, as dropping a namespace will remove all the data, collections, or tables contained within it, and this action cannot be undone.

      Example usage:

       
 // Assume 'client' is an instance of your data API client
 String namespace = "targetNamespace";

 // Drop the namespace
 client.dropNamespace(namespace);

 // The namespace 'targetNamespace' is now deleted, along with all its contained data
      This example demonstrates how to safely drop a namespace by name. The operation ensures that even if the namespace does not exist, the method call will not interrupt the flow of the application, thereby allowing for flexible and error-tolerant code design.
      Specified by:
      dropNamespace in interface DatabaseAdmin
      Parameters:
      namespace - The name of the namespace to be dropped. This parameter specifies the target namespace that should be deleted. The operation will proceed silently and without error even if the namespace does not exist, ensuring consistent behavior.