sqlalchemy.sql.visitors.CloningExternalTraversal

class documentation

class CloningExternalTraversal(ExternalTraversal):

Base class for visitor objects which can traverse using the .visitors.cloned_traverse function.

Direct usage of the .visitors.cloned_traverse function is usually preferred.

Method	`copy_and_process`	Apply cloned traversal to the given list of elements, and return the new list.
Method	`traverse`	Traverse and visit the given expression structure.

Inherited from ExternalTraversal:

Method	`chain`	'Chain' an additional ClauseVisitor onto this ClauseVisitor.
Method	`iterate`	Traverse the given expression structure, returning an iterator of all elements.
Method	`traverse_single`	Undocumented
Class Variable	`__traverse_options__`	Undocumented
Property	`_visitor_dict`	Undocumented
Property	`visitor_iterator`	Iterate through this visitor and each 'chained' visitor.

def copy_and_process(self, list_):

Apply cloned traversal to the given list of elements, and return the new list.

def traverse(self, obj):

overrides sqlalchemy.sql.visitors.ExternalTraversal.traverse

overridden in sqlalchemy.sql.visitors.ReplacingExternalTraversal

Traverse and visit the given expression structure.