Package Products :: Package ZenUtils :: Module PObjectCache :: Class PObjectCache
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Class PObjectCache

source code

                            ExtensionClass.Base --+        
                                                  |        
                        ExtensionClass.Base --+   |        
                                              |   |        
         webdav.EtagSupport.EtagSupport --+   |   |        
                                          |   |   |        
               webdav.Lockable.LockableItem --+   |        
                                              |   |        
                       webdav.Resource.Resource --+        
                                                  |        
                        ExtensionClass.Base --+   |        
                                              |   |        
                     OFS.CopySupport.CopySource --+        
                                                  |        
                        ExtensionClass.Base --+   |        
                                              |   |        
                            App.Management.Tabs --+        
                                                  |        
                    OFS.Traversable.Traversable --+        
                                                  |        
                              OFS.ZDOM.Node --+   |        
                                              |   |        
                               OFS.ZDOM.Element --+        
                                                  |        
                    ExtensionClass.Base --+       |        
                                          |       |        
                  AccessControl.owner.Owned --+   |        
                                              |   |        
                                OFS.owner.Owned --+        
                                                  |        
                        ExtensionClass.Base --+   |        
                                              |   |        
                           App.Undo.UndoSupport --+        
                                                  |        
                                OFS.SimpleItem.Item --+    
                                                      |    
                             Persistence.Persistent --+    
                                                      |    
                               Acquisition.Implicit --+    
                                                      |    
                        ExtensionClass.Base --+       |    
                                              |       |    
AccessControl.PermissionMapping.RoleManager --+       |    
                                              |       |    
          AccessControl.rolemanager.RoleManager --+   |    
                                                  |   |    
                               OFS.role.RoleManager --+    
                                                      |    
                              OFS.SimpleItem.SimpleItem --+
                                                          |
                                                         PObjectCache

Instance Methods [hide private]
 
__init__(self, id, timeout=20, clearthresh=20) source code
 
_p_resolveConflict(self, oldstate, savedstate, newstate)
Any page that contains a lot of graphs is practically guaranteed to cause read conflict errors on PObjectCache.
source code
 
checkCache(self, key)
check to see if key is in cache return None if not
source code
 
addToCache(self, key, obj)
add an object to the cache
source code
 
manage_clearCache(self, REQUEST=None) source code
 
cleanCache(self, force=0)
clean the cache if nessesary
source code
 
getCache(self) source code
 
getCacheTimeout(self)
return cache timeout
source code
 
getCacheClearthresh(self)
return cache clearthresh
source code

Inherited from OFS.SimpleItem.Item: __len__, __repr__, getId, manage, manage_FTPlist, manage_FTPstat, manage_afterAdd, manage_afterClone, manage_beforeDelete, manage_editedDialog, objectIds, objectItems, objectValues, raise_standardErrorMessage, this, title_and_id, title_or_id, tpURL, tpValues

Inherited from webdav.Resource.Resource: COPY, DELETE, HEAD, LOCK, MKCOL, MOVE, OPTIONS, PROPFIND, PROPPATCH, PUT, TRACE, UNLOCK, dav__init, dav__simpleifhandler, dav__validate, listDAVObjects, manage_DAVget

Inherited from webdav.Lockable.LockableItem: wl_clearLocks, wl_delLock, wl_getLock, wl_hasLock, wl_isLocked, wl_lockItems, wl_lockTokens, wl_lockValues, wl_lockmapping, wl_setLock

Inherited from webdav.EtagSupport.EtagSupport: http__etag, http__parseMatchList, http__processMatchHeaders, http__refreshEtag

Inherited from OFS.CopySupport.CopySource: cb_isCopyable, cb_isMoveable, cb_userHasCopyOrMovePermission

Inherited from OFS.CopySupport.CopySource (private): _canCopy, _getCopy, _notifyOfCopyTo, _postCopy, _setId

Inherited from App.Management.Tabs: filtered_manage_options, manage_workspace, tabs_path_default, tabs_path_info

Inherited from OFS.Traversable.Traversable: absolute_url, absolute_url_path, getPhysicalPath, restrictedTraverse, unrestrictedTraverse, virtual_url_path

Inherited from OFS.ZDOM.Element: getAttribute, getAttributeNode, getChildNodes, getElementsByTagName, getFirstChild, getLastChild, getNextSibling, getNodeName, getNodeType, getParentNode, getPreviousSibling, getTagName

Inherited from OFS.ZDOM.Node: getAttributes, getNodeValue, getOwnerDocument, hasChildNodes

Inherited from OFS.owner.Owned: manage_changeOwnershipType, manage_takeOwnership

Inherited from AccessControl.owner.Owned: changeOwnership, getOwner, getOwnerTuple, getWrappedOwner, manage_fixupOwnershipAfterAdd, owner_info, userCanTakeOwnership

Inherited from AccessControl.owner.Owned (private): _deleteOwnershipAfterAdd

Inherited from App.Undo.UndoSupport: get_request_var_or_attr, manage_undo_transactions, undoable_transactions

Inherited from OFS.role.RoleManager: manage_access, manage_acquiredPermissions, manage_addLocalRoles, manage_changePermissions, manage_defined_roles, manage_delLocalRoles, manage_editRoles, manage_permission, manage_role, manage_setLocalRoles

Inherited from OFS.role.RoleManager (private): _addRole, _delRoles, _has_user_defined_role, _setRoles

Inherited from AccessControl.rolemanager.RoleManager: ac_inherited_permissions, access_debug_info, acquiredRolesAreUsedBy, get_local_roles, get_local_roles_for_userid, get_valid_userids, has_local_roles, manage_getUserRolesAndPermissions, permission_settings, permissionsOfRole, possible_permissions, rolesOfPermission, userdefined_roles, users_with_local_role, valid_roles, validate_roles

Inherited from AccessControl.PermissionMapping.RoleManager: manage_getPermissionMapping, manage_setPermissionMapping

Inherited from AccessControl.PermissionMapping.RoleManager (private): _isBeingUsedAsAMethod

Class Variables [hide private]
  editCache = DTMLFile('dtml/editCache', globals())
  manage_options = {'label': 'Cache', 'action': 'editCache'},
  security = ClassSecurityInfo()

Inherited from OFS.SimpleItem.Item: REQUEST, __allow_access_to_unprotected_subobjects__, __name__, __propsets__, icon, id, isPrincipiaFolderish, isTopLevelPrincipiaApplicationObject, meta_type, title

Inherited from OFS.SimpleItem.Item (private): _manage_editedDialog

Inherited from webdav.Resource.Resource: __dav_resource__, __http_methods__

Inherited from App.Management.Tabs: manage_tabs, manage_workspace__roles__

Inherited from OFS.Traversable.Traversable: getPhysicalRoot

Inherited from OFS.owner.Owned: manage_owner

Inherited from App.Undo.UndoSupport: manage_UndoForm

Inherited from OFS.role.RoleManager: aclAChecked, aclEChecked, aclPChecked, manage_acquiredForm, manage_editLocalRoles, manage_listLocalRoles, manage_permissionForm, manage_reportUserPermissions, manage_roleForm, selectedRoles, smallRolesWidget, validRoles

Inherited from OFS.role.RoleManager (private): _normal_manage_access

Inherited from AccessControl.rolemanager.RoleManager: __ac_local_roles__, __ac_roles__, permissionMappingPossibleValues

Method Details [hide private]

_p_resolveConflict(self, oldstate, savedstate, newstate)

source code 

Any page that contains a lot of graphs is practically guaranteed to cause read conflict errors on PObjectCache. Fortunately it's really easy to do good conflict resolution on this simple object.