Current File : //opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyo
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ClauseVisitori ( t exc( t utilt PARSE_AUTOCOMMITt NO_ARGt Immutablec B s) e Z d Z d � Z d � Z d � Z RS( s@ mark a ClauseElement as 'immutable' when expressions are cloned.c O s t d � � d S( Ns( Immutable objects do not support copying( t NotImplementedError( t selft optionaldictt kwargs( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyt
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<dialectname>_<argument_name>.
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t _DialectArgDictc B sD e Z d Z d � Z d � Z d � Z d � Z d � Z d � Z RS( s� A dictionary view of dialect-level arguments for a specific
dialect.
Maintains a separate collection of user-specified arguments
and dialect-specified default arguments.
c C s i | _ i | _ d S( N( R. t _defaults( R ( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyR u s c C s t t | j � j | j � � S( N( R- t setR. t unionR8 ( R ( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyR2 y s c C s t t | j � j | j � � S( N( t iterR9 R. R: R8 ( R ( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyR6 | s c C s) | | j k r | j | S| j | Sd S( N( R. R8 ( R R! ( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyR( s c C s | | j | <d S( N( R. ( R R! R* ( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyR+ � s c C s | j | =d S( N( R. ( R R! ( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyR, � s ( R
R R R R2 R6 R( R+ R, ( ( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyR7 l s t
DialectKWArgsc B s� e Z d Z e d � � Z e j d � � Z e d � � Z e j
d � d � � Z e j e � Z
d � Z e j d � � Z d � Z RS( s9 Establish the ability for a class to have dialect-specific arguments
with defaults and constructor validation.
The :class:`.DialectKWArgs` interacts with the
:attr:`.DefaultDialect.construct_arguments` present on a dialect.
.. seealso::
:attr:`.DefaultDialect.construct_arguments`
c C sZ t j | } | d k r/ t j d | � � n | | k rH i | | <n | | | | <d S( s� Add a new kind of dialect-specific keyword argument for this class.
E.g.::
Index.argument_for("mydialect", "length", None)
some_index = Index('a', 'b', mydialect_length=5)
The :meth:`.DialectKWArgs.argument_for` method is a per-argument
way adding extra arguments to the
:attr:`.DefaultDialect.construct_arguments` dictionary. This
dictionary provides a list of argument names accepted by various
schema-level constructs on behalf of a dialect.
New dialects should typically specify this dictionary all at once as a
data member of the dialect class. The use case for ad-hoc addition of
argument names is typically for end-user code that is also using
a custom compilation scheme which consumes the additional arguments.
:param dialect_name: name of a dialect. The dialect must be
locatable, else a :class:`.NoSuchModuleError` is raised. The
dialect must also include an existing
:attr:`.DefaultDialect.construct_arguments` collection, indicating
that it participates in the keyword-argument validation and default
system, else :class:`.ArgumentError` is raised. If the dialect does
not include this collection, then any keyword argument can be
specified on behalf of this dialect already. All dialects packaged
within SQLAlchemy include this collection, however for third party
dialects, support may vary.
:param argument_name: name of the parameter.
:param default: default value of the parameter.
.. versionadded:: 0.9.4
sR Dialect '%s' does have keyword-argument validation and defaults enabled configuredN( R< t _kw_registryt NoneR R) ( t clsR4 t
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c C s
t | � S( s9 A collection of keyword arguments specified as dialect-specific
options to this construct.
The arguments are present here in their original ``<dialect>_<kwarg>``
format. Only arguments that were actually passed are included;
unlike the :attr:`.DialectKWArgs.dialect_options` collection, which
contains all options known by this dialect including defaults.
The collection is also writable; keys are accepted of the
form ``<dialect>_<kwarg>`` where the value will be assembled
into the list of options.
.. versionadded:: 0.9.2
.. versionchanged:: 0.9.4 The :attr:`.DialectKWArgs.dialect_kwargs`
collection is now writable.
.. seealso::
:attr:`.DialectKWArgs.dialect_options` - nested dictionary form
( R ( R ( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyt dialect_kwargs� s c C s | j S( s4 A synonym for :attr:`.DialectKWArgs.dialect_kwargs`.( RD ( R ( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyR � s s sqlalchemy.dialectsc C s2 | j j | � } | j d k r% d St | j � S( N( t registryt loadt construct_argumentsR> t dict( t dialectsR4 t dialect_cls( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyt _kw_reg_for_dialect� s c C s� t j | } t � } | d k r< | j j i d d 6� n@ x= t | j j � D]) } | | k rO | j j | | � qO qO W| S( Nt *( R< R= R7 R> R8 t updatet reversedt __class__t __mro__( R R4 RB t dR? ( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyt _kw_reg_for_dialect_cls� s
c C s t j t j | j � � S( s� A collection of keyword arguments specified as dialect-specific
options to this construct.
This is a two-level nested registry, keyed to ``<dialect_name>``
and ``<argument_name>``. For example, the ``postgresql_where``
argument would be locatable as::
arg = my_object.dialect_options['postgresql']['where']
.. versionadded:: 0.9.2
.. seealso::
:attr:`.DialectKWArgs.dialect_kwargs` - flat dictionary form
( R t PopulateDictt portable_instancemethodRR ( R ( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyR% � s c C s% | s
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Generativec B s e Z d Z d � Z RS( sR Allow a ClauseElement to generate itself via the
@_generative decorator.
c C s+ | j j | j � } | j j � | _ | S( N( RO t __new__t __dict__t copy( R t s( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyR D s ( R
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Executablec B s_ e Z d Z e Z e j � Z d Z e
d � � Z d � Z d � Z
d � Z e d � � Z RS( s� Mark a ClauseElement as supporting execution.
:class:`.Executable` is a superclass for all "statement" types
of objects, including :func:`select`, :func:`delete`, :func:`update`,
:func:`insert`, :func:`text`.
c K sU d | k r t j d � � n d | k r< t j d � � n | j j | � | _ d S( sc Set non-SQL options for the statement which take effect during
execution.
Execution options can be set on a per-statement or
per :class:`.Connection` basis. Additionally, the
:class:`.Engine` and ORM :class:`~.orm.query.Query` objects provide
access to execution options which they in turn configure upon
connections.
The :meth:`execution_options` method is generative. A new
instance of this statement is returned that contains the options::
statement = select([table.c.x, table.c.y])
statement = statement.execution_options(autocommit=True)
Note that only a subset of possible execution options can be applied
to a statement - these include "autocommit" and "stream_results",
but not "isolation_level" or "compiled_cache".
See :meth:`.Connection.execution_options` for a full list of
possible options.
.. seealso::
:meth:`.Connection.execution_options`
:meth:`.Query.execution_options`
:meth:`.Executable.get_execution_options`
t isolation_levels� 'isolation_level' execution option may only be specified on Connection.execution_options(), or per-engine using the isolation_level argument to create_engine().t compiled_cachesm 'compiled_cache' execution option may only be specified on Connection.execution_options(), not per statement.N( R R) t _execution_optionsR: ( R R ( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyt execution_optionsW s c C s | j S( s� Get the non-SQL options which will take effect during execution.
.. versionadded:: 1.3
.. seealso::
:meth:`.Executable.execution_options`
( Rj ( R ( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyt get_execution_options� s c O s\ | j } | d k rI t | d | j j � } d | } t j | � � n | j | | | � S( s. Compile and execute this :class:`.Executable`.t descriptions� This %s is not directly bound to a Connection or Engine. Use the .execute() method of a Connection or Engine to execute this construct.N( t bindR> t getattrRO R
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( Rv t scalar( R Rr R ( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyRw � s c C s` | j d k r | j SxC t | � D]1 } | | k r; q# n | j } | d k r# | Sq# Wd Sd S( s5 Returns the :class:`.Engine` or :class:`.Connection` to
which this :class:`.Executable` is bound, or None if none found.
This is a traversal which checks locally, then
checks among the "from" clauses of associated objects
until a bound engine or connection is found.
N( t _bindR> R Rn ( R t ft engine( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyRn � s
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t SchemaEventTargetc B s e Z d Z d � Z d � Z RS( s� Base class for elements that are the targets of :class:`.DDLEvents`
events.
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c C s d S( s0 Associate with this SchemaEvent's parent object.N( ( R t parent( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyt _set_parent� t c C s7 | j j | | � | j | � | j j | | � d S( N( t dispatcht before_parent_attachR� t after_parent_attach( R R ( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyt _set_parent_with_dispatch� s
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R R R{ t __traverse_options__( ( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyR� � s t ColumnCollectionc B s� e Z d Z d Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z
d � Z d
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Overrides the ``__eq__()`` method to produce SQL clauses between
sets of correlated columns.
t _all_columnsc G sH t t | � j � t j | d g � x | D] } | j | � q- Wd S( NR� ( t superR� R t objectt __setattr__t add( R t columnst c( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyR � s
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� S( N( t reprt str( R R� ( ( sF /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/sql/base.pyt __str__� s c C s� d } | j | k r_ | j | j k r_ | | j } | j | j k r_ | } | j | j =q_ n | j | j k r� | j | j } n | | j | j <| d k r� g | j D] } | | k r� | n | ^ q� | j (n | j j | � d S( s add the given column to this collection, removing unaliased
versions of this column as well as existing columns with the
same key.
e.g.::
t = Table('sometable', metadata, Column('col1', Integer))
t.columns.replace(Column('col1', Integer, key='columnone'))
will remove the original 'col1' from the collection, and add
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