| Name | Location | Description |
|---|---|---|
| ArchiverTar | drupal/ | Archiver for .tar files. |
| ArchiverZip | drupal/ | Archiver for .zip files. |
| Archive_Tar | drupal/ | Creates a (compressed) Tar archive * |
| BatchMemoryQueue | drupal/ | Batch queue implementation used for non-progressive batches. |
| BatchQueue | drupal/ | Batch queue implementation. |
| CommentController | drupal/ | Controller class for comments. |
| Database | drupal/ | Primary front-controller for the database system. |
| DatabaseCondition | drupal/ | Generic class for a series of conditions in a query. |
| DatabaseConnection | drupal/ | Base Database API class. |
| DatabaseConnectionNotDefinedException | drupal/ | Exception thrown if an undefined database connection is requested. |
| DatabaseConnection_mysql | drupal/ | |
| DatabaseConnection_pgsql | drupal/ | |
| DatabaseConnection_sqlite | drupal/ | Specific SQLite implementation of DatabaseConnection. |
| DatabaseDriverNotSpecifiedException | drupal/ | Exception thrown if no driver is specified for a database connection. |
| DatabaseLog | drupal/ | Database query logger. |
| DatabaseSchema | drupal/ | |
| DatabaseSchemaObjectDoesNotExistException | drupal/ | Exception thrown if an object being modified doesn't exist yet. |
| DatabaseSchemaObjectExistsException | drupal/ | Exception thrown if an object being created already exists. |
| DatabaseSchema_mysql | drupal/ | |
| DatabaseSchema_pgsql | drupal/ | |
| DatabaseSchema_sqlite | drupal/ | |
| DatabaseStatementBase | drupal/ | Default implementation of DatabaseStatementInterface. |
| DatabaseStatementEmpty | drupal/ | Empty implementation of a database statement. |
| DatabaseStatementPrefetch | drupal/ | An implementation of DatabaseStatementInterface that prefetches all data. |
| DatabaseStatement_sqlite | drupal/ | Specific SQLite implementation of DatabaseConnection. |
| DatabaseTaskException | drupal/ | @class Exception class used to throw error if the DatabaseInstaller fails. |
| DatabaseTasks | drupal/ | Database installer structure. |
| DatabaseTasks_mysql | drupal/ | Specifies installation tasks for MySQL and equivalent databases. |
| DatabaseTasks_pgsql | drupal/ | |
| DatabaseTasks_sqlite | drupal/ | |
| DatabaseTransaction | drupal/ | A wrapper class for creating and managing database transactions. |
| DatabaseTransactionCommitFailedException | drupal/ | Exception thrown when a commit() function fails. |
| DatabaseTransactionExplicitCommitNotAllowedException | drupal/ | Exception to deny attempts to explicitly manage transactions. |
| DatabaseTransactionNameNonUniqueException | drupal/ | Exception thrown when a savepoint or transaction name occurs twice. |
| DatabaseTransactionNoActiveException | drupal/ | Exception for when popTransaction() is called with no active transaction. |
| DefaultMailSystem | drupal/ | The default Drupal mail backend using PHP's mail function. |
| DeleteQuery | drupal/ | General class for an abstracted DELETE operation. |
| DeleteQuery_sqlite | drupal/ | SQLite specific implementation of DeleteQuery. |
| DrupalDatabaseCache | drupal/ | Default cache implementation. |
| DrupalDefaultEntityController | drupal/ | Default implementation of DrupalEntityControllerInterface. |
| DrupalDummyStreamWrapper | drupal/ | Helper class for testing the stream wrapper registry. |
| DrupalFakeCache | drupal/ | A stub cache implementation to be used during the installation process. |
| DrupalLocalStreamWrapper | drupal/ | Drupal stream wrapper base class for local files. |
| DrupalPrivateStreamWrapper | drupal/ | Drupal private (private://) stream wrapper class. |
| DrupalPublicStreamWrapper | drupal/ | Drupal public (public://) stream wrapper class. |
| DrupalQueue | drupal/ | Factory class for interacting with queues. |
| DrupalTemporaryStreamWrapper | drupal/ | Drupal temporary (temporary://) stream wrapper class. |
| DrupalTestCase | drupal/ | Base class for Drupal tests. |
| DrupalUnitTestCase | drupal/ | Test case for Drupal unit tests. |
| DrupalUpdateException | drupal/ | @class Exception class used to throw error if a module update fails. |
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