sqlalchemy.sql.schema.DefaultGenerator

class documentation

class DefaultGenerator(Executable, SchemaItem):

Known subclasses: sqlalchemy.sql.schema.ColumnDefault, sqlalchemy.sql.schema.Sequence

Base class for column default values.

Method	`__init__`	Undocumented
Method	`_execute_on_connection`	Undocumented
Method	`_set_parent`	Associate with this SchemaEvent's parent object.
Method	`execute`	Compile and execute this `.Executable`.
Class Variable	`__visit_name__`	Undocumented
Class Variable	`is_sequence`	Undocumented
Class Variable	`is_server_default`	Undocumented
Instance Variable	`column`	Undocumented
Instance Variable	`for_update`	Undocumented
Property	`bind`	Return the connectable associated with this default.

Inherited from Executable:

Method	`_add_context_option`	Add a context option to this statement.
Method	`_set_compile_options`	Assign the compile options to a new value.
Method	`_update_compile_options`	update the _compile_options with new keys.
Method	`execution_options`	Set non-SQL options for the statement which take effect during execution.
Method	`get_execution_options`	Get the non-SQL options which will take effect during execution.
Method	`options`	Apply options to this statement.
Method	`scalar`	Compile and execute this `.Executable`, returning the result's scalar representation.
Class Variable	`_bind`	Undocumented
Class Variable	`_executable_traverse_internals`	Undocumented
Class Variable	`_with_context_options`	Undocumented
Class Variable	`_with_options`	Undocumented
Class Variable	`is_delete`	Undocumented
Class Variable	`is_dml`	Undocumented
Class Variable	`is_insert`	Undocumented
Class Variable	`is_select`	Undocumented
Class Variable	`is_text`	Undocumented
Class Variable	`is_update`	Undocumented
Class Variable	`supports_execution`	Undocumented
Instance Variable	`_compile_options`	Undocumented
Instance Variable	`_execution_options`	Undocumented
Property	`_effective_plugin_target`	Undocumented

Inherited from StatementRole (via Executable):

Class Variable	`_propagate_attrs`	Undocumented
Class Variable	`_role_name`	Undocumented

Inherited from SQLRole (via Executable, StatementRole):

Class Variable	`allows_lambda`	Undocumented
Class Variable	`uses_inspection`	Undocumented

Inherited from Generative (via Executable):

Method _generate Undocumented

Inherited from SchemaItem:

Method	`__repr__`	Undocumented
Method	`_init_items`	Initialize the list of child items for this SchemaItem.
Method	`_schema_item_copy`	Undocumented
Class Variable	`_use_schema_map`	Undocumented
Class Variable	`create_drop_stringify_dialect`	Undocumented
Property	`info`	Info dictionary associated with the object, allowing user-defined data to be associated with this `.SchemaItem`.

Inherited from SchemaEventTarget (via SchemaItem):

Method _set_parent_with_dispatch Undocumented

Inherited from Traversible (via SchemaItem):

Method	`get_children`	Return immediate child `.visitors.Traversible` elements of this `.visitors.Traversible`.
Method	`__class_getitem__`	Undocumented

def __init__(self, for_update=False):

overridden in sqlalchemy.sql.schema.ColumnDefault, sqlalchemy.sql.schema.Sequence

Undocumented

def _execute_on_connection(self, connection, multiparams, params, execution_options):

Undocumented

def _set_parent(self, column, **kw):

overrides sqlalchemy.sql.base.SchemaEventTarget._set_parent

overridden in sqlalchemy.sql.schema.Sequence

Associate with this SchemaEvent's parent object.

@util.deprecated_20(':meth:`.DefaultGenerator.execute`', alternative='All statement execution in SQLAlchemy 2.0 is performed by the :meth:`_engine.Connection.execute` method of :class:`_engine.Connection`, or in the ORM by the :meth:`.Session.execute` method of :class:`.Session`.')
def execute(self, bind=None):

overrides sqlalchemy.sql.base.Executable.execute

Compile and execute this .Executable.

__visit_name__: str =

overrides sqlalchemy.sql.schema.SchemaItem.__visit_name__

overridden in sqlalchemy.sql.schema.Sequence

Undocumented

is_sequence: bool =

overridden in sqlalchemy.sql.schema.Sequence

Undocumented

is_server_default: bool =

Undocumented

column =

Undocumented

for_update =

Undocumented

@property
bind =

overrides sqlalchemy.sql.base.Executable.bind

overridden in sqlalchemy.sql.schema.Sequence

Return the connectable associated with this default.