Current File : //opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyo
�
��4]c @ sT d Z d d l Z d d l m Z d d l m Z d d l m Z d d l m Z d d l m Z
d d l m Z d d
l
m Z d d l
m Z d d l
m Z d d
l
m Z d d l
m Z d Z d � Z e g Z d e f d � � YZ e � e _ Z e e _ d e f d � � YZ d e f d � � YZ d � Z d � Z d � Z d S( s� Extensible class instrumentation.
The :mod:`sqlalchemy.ext.instrumentation` package provides for alternate
systems of class instrumentation within the ORM. Class instrumentation
refers to how the ORM places attributes on the class which maintain
data and track changes to that data, as well as event hooks installed
on the class.
.. note::
The extension package is provided for the benefit of integration
with other object management packages, which already perform
their own instrumentation. It is not intended for general use.
For examples of how the instrumentation extension is used,
see the example :ref:`examples_instrumentation`.
i����Ni ( t util( t
attributes( t base( t collections( t exc( t instrumentation( t _default_dict_getter( t _default_manager_getter( t _default_state_getter( t ClassManager( t InstrumentationFactoryt __sa_instrumentation_manager__c C s t | t d � S( s; Find user-specified instrumentation management for a class.N( t getattrt INSTRUMENTATION_MANAGERt None( t cls( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt% find_native_user_instrumentation_hook; s t ExtendedInstrumentationRegistryc B s� e Z d Z e j � Z e j � Z e j � Z e Z d � Z
d � Z d � Z d � Z
d � Z d � Z d � Z d � Z RS( s� Extends :class:`.InstrumentationFactory` with additional
bookkeeping, to accommodate multiple types of
class managers.
c C sM xF t D]: } | | � } | d k r | j | | � } | | f Sq Wd Sd S( N( NN( t instrumentation_findersR t _extended_class_manager( t selft class_t findert factoryt manager( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt _locate_extended_factory] s
c C sG | j | � j | g � } | rC t d | j t | � f � � n d S( NsR multiple instrumentation implementations specified in %s inheritance hierarchy: %r( t! _collect_management_factories_fort
differencet TypeErrort __name__t list( R R R t existing_factories( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt _check_conflictsf s c C s� | | � } t | t � s- t | | � } n | t k rV | j rV t | _ t � n | j � | j | <| j � | j | <| j
� | j | <| S( N( t
isinstanceR t _ClassInstrumentationAdaptert _extendedt Truet _install_instrumented_lookupst manager_gettert _manager_finderst state_gettert _state_finderst dict_gettert
_dict_finders( R R R R ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyR q s
c C s� t j | � } t � } x| | D]t } | j | � } | d k rS | j | j � q x0 t D]" } | | � } | d k rZ PqZ qZ Wd } | j | � q W| j d � | S( sc Return a collection of factories in play or specified for a
hierarchy.
Traverses the entire inheritance graph of a cls and returns a
collection of instrumentation factories for those classes. Factories
are extracted from active ClassManagers, if available, otherwise
instrumentation_finders is consulted.
N( R t class_hierarchyt sett manager_of_classR t addR R t discard( R R t hierarchyt factoriest memberR R R ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyR � s
c C sJ | | j k r0 | j | =| j | =| j | =n t t | � j | � d S( N( R' R) R+ t superR t
unregister( R R ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyR5 � s
c C sL | d k r d Sy | j j | t � } Wn t k
r= d SX| | � Sd S( N( R R' t getR R ( R R R ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyR. � s
c C s7 | d k r t d � � n | j j | j t � | � S( Ns None has no persistent state.( R t AttributeErrorR) R6 t __class__R ( R t instance( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt state_of� s
c C s7 | d k r t d � � n | j j | j t � | � S( Ns None has no persistent state.( R R7 R+ R6 R8 R ( R R9 ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt dict_of� s
( R t
__module__t __doc__t weakreft WeakKeyDictionaryR' R) R+ t FalseR# R R R R R5 R. R: R; ( ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyR Q s t InstrumentationManagerc 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
� Z d � Z
d � Z d
� Z d � Z d � Z d � Z d � Z RS( sW User-defined class instrumentation extension.
:class:`.InstrumentationManager` can be subclassed in order
to change
how class instrumentation proceeds. This class exists for
the purposes of integration with other object management
frameworks which would like to entirely modify the
instrumentation methodology of the ORM, and is not intended
for regular usage. For interception of class instrumentation
events, see :class:`.InstrumentationEvents`.
The API for this class should be considered as semi-stable,
and may change slightly with new releases.
c C s d S( N( ( R R ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt __init__� s c C s t | d | � d S( Nt _default_class_manager( t setattr( R R R ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt manage� s c C s t | d � d S( NRC ( t delattr( R R R ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt dispose� s c C s
d � } | S( Nc S s | j S( N( RC ( R ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyR6 � s ( ( R R R6 ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyR& � s c C s d S( N( ( R R t keyt inst( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt instrument_attribute� s c C s d S( N( ( R R RH RI ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt post_configure_attribute� s c C s t | | | � d S( N( RD ( R R RH RI ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt install_descriptor� s c C s t | | � d S( N( RF ( R R RH ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt uninstall_descriptor� s c C s t | | | � d S( N( RD ( R R RH t implementation( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt install_member� s c C s t | | � d S( N( RF ( R R RH ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt uninstall_member� s c C s
t j | � S( N( R t prepare_instrumentation( R R RH t collection_class( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt instrument_collection_class� s c C s | j S( N( t __dict__( R R R9 ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt get_instance_dict� s c C s d S( N( ( R R R9 ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt initialize_instance_dict s c C s t | d | � d S( Nt _default_state( RD ( R R R9 t state( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt
install_state s c C s t | d � d S( NRW ( RF ( R R R9 ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt remove_state s c C s d � S( Nc S s
t | d � S( NRW ( R ( R9 ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt <lambda>
t ( ( R R ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyR( s c s � � f d � S( Nc s � j � | � S( N( RU ( RI ( R R ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyR[
R\ ( ( R R ( ( R R sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyR* s ( R R< R= RB RE RG R& RJ RK RL RM RO RP RS RU RV RY RZ R( R* ( ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyRA � s$ R" c B s� e Z d Z d � Z d � Z d � Z d � Z e d � Z d � Z d � Z
d � Z d � Z d
� Z
d � Z d � Z d d
� Z d � Z d d � Z d � Z d � Z d � Z d � Z RS( s? Adapts a user-defined InstrumentationManager to a ClassManager.c C sG | | _ | j j | � | _ | j j | � | _ t j | | � d S( N( t _adaptedR( t
_get_stateR* t _get_dictR RB ( R R t override( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyRB s c C s | j j | j | � d S( N( R] RE R ( R ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyRE s c C s | j j | j � d S( N( R] RG R ( R ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyRG s c C s | j j | j � S( N( R] R& R ( R ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyR& s c C s< t j | | | | � | s8 | j j | j | | � n d S( N( R RJ R] R ( R RH RI t
propagated( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyRJ # s c C s7 t t | � j | � | j j | j | | | � d S( N( R4 R" RK R] R ( R RH ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyRK ( s c C s | j j | j | | � d S( N( R] RL R ( R RH RI ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyRL , s c C s | j j | j | � d S( N( R] RM R ( R RH ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyRM / s c C s | j j | j | | � d S( N( R] RO R ( R RH RN ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyRO 2 s c C s | j j | j | � d S( N( R] RP R ( R RH ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyRP 5 s c C s | j j | j | | � S( N( R] RS R ( R RH RR ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyRS 8 s c C sE t | j d d � } | r+ | | | | � St j | | | | � Sd S( Nt initialize_collection( R R] R R Rb ( R RH RX R t delegate( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyRb = s
c C s) | j j | j � } | j | | � | S( N( R t __new__t setup_instance( R RX R9 ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt new_instanceF s c C s$ | j | � r t S| j | � Sd S( s� Install a default InstanceState if none is present.
A private convenience method used by the __init__ decorator.
N( t has_stateR@ Re ( R R9 ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt _new_state_if_noneK s c C sT | j j | j | � | d k r7 | j | | � } n | j j | j | | � | S( N( R] RV R R t _state_constructorRY ( R R9 RX ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyRe U s
c C s | j j | j | � d S( N( R] RZ R ( R R9 ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt teardown_instance_ s c C s1 y | j | � Wn t j k
r( t SXt Sd S( N( R^ t orm_exct NO_STATER@ R$ ( R R9 ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyRg b s
c C s | j S( N( R^ ( R ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyR( j s c C s | j S( N( R_ ( R ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyR* m s N( R R< R= RB RE RG R& R@ RJ RK RL RM RO RP RS Rb R Rf Rh Re Rj Rg R( R* ( ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyR" s(
c C s, t t d t j d t j d t j � � d S( s� Replace global class/object management functions
with ExtendedInstrumentationRegistry implementations, which
allow multiple types of class managers to be present,
at the cost of performance.
This function is called only by ExtendedInstrumentationRegistry
and unit tests specific to this behavior.
The _reinstall_default_lookups() function can be called
after this one to re-establish the default functions.
t instance_statet
instance_dictR. N( t _install_lookupst dictt _instrumentation_factoryR: R; R. ( ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyR% q s
c C s, t t d t d t d t � � t t _ d S( s Restore simplified lookups.Rm Rn R. N( Ro Rp R R R R@ Rq R# ( ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt _reinstall_default_lookups� s
c C sg | d a | d a | d a t t _ t _ t _ t t _ t _ t _ t t _ t _ t _ d S( NRm Rn R. ( Rm Rn R. t orm_baseR t orm_instrumentation( t lookups( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyRo � s
( R= R> R\ R t ormR R Rs R R Rk R Rt t orm.instrumentationR R R R R
R
R R R Rq t objectRA R" R% Rr Ro ( ( ( sQ /opt/alt/python27/lib64/python2.7/site-packages/sqlalchemy/ext/instrumentation.pyt <module> s. o La
Mini Shell