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Registry

A central place where objects or callbacks are registered by name and looked up later. 39 instances in Exponential.

For: Developers
Category: Standards
Source file: doc/eng-us/standards/patterns/registry.md
Last changed 11/04/2026
11 min read
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Address: https://doc.exponential.earth/exphelp/viewer/standards/patterns/registry.md

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Registry

Note

This page is generated from the source code by php bin/php/exppatterncatalogue.php --write. Do not edit it by hand: change the code or the generator, then run the command again. How the patterns are recognized: the pattern catalogue.

A central place where objects or callbacks are registered by name and looked up later.

Group	Structure
Instances	39
Recognized by	Class name contains Registry, or has static register*() methods.

Classes by area

extension/expai (4)

All patterns of extension/expai

Class	Kind	File	Description	Extension point
`expAiFieldActionRegistry`	class	`extension/expai/classes/fieldactions/expaifieldactionregistry.php:13`	The field actions of expai.ini [EditViewSettings] FieldActions[], and the edit form's description of them.	–
`expAiProviderRegistry`	class	`extension/expai/classes/expaiproviderregistry.php:24`	The providers and models of expai.ini:	–
`expAiSegmenterRegistry`	class	`extension/expai/classes/diff/expaisegmenterregistry.php:15`	The segmenter of a datatype: expai.ini [DiffSettings] Segmenters[]=, else FallbackSegmenter (expAiSegmenterGeneric).	–
`expAiToolRegistry`	class	`extension/expai/classes/expaitoolregistry.php:16`	The tools of expai.ini [ToolSettings] Tools[], each [Tool_] Class=, plus the MCP tools the current user may use (expAiMcp::tools(): the in-process br…	–

extension/expservices (1)

All patterns of extension/expservices

Class	Kind	File	Description	Extension point
`expAccountServices`	class extends expUsersBase	`extension/expservices/classes/users/expaccountservices.php:13`	expaccount: the account flows of a person: registration and activation, forgotten password and reset, changing one's own password and e-mail, and the…	extension/expservices/settings/ezjscore.ini [ezjscServer_expaccount] Class

extension/ezoe (1)

All patterns of extension/ezoe

Class	Kind	File	Description	Extension point
`expOEEditor`	class	`extension/ezoe/classes/expoeeditor.php:18`	The editor engine registry and the helpers every caller shares: the templates, the ezoe module, the ezjscore functions and the expservices class all…	–

extension/nxc_powercontent (1)

All patterns of extension/nxc_powercontent

Class	Kind	File	Description	Extension point
`eZContentOperationCollection`	class	`extension/nxc_powercontent/modules/content/ezcontentoperationcollection.php:20`	–	–

extension/sqliimport (3)

All patterns of extension/sqliimport

Class	Kind	File	Description	Extension point
`expImportRegistry`	class	`extension/sqliimport/classes/exp/engine/expimportregistry.php:23`	The catalogue of a site: its sources, handlers and transforms.	extension/sqliimport/settings/kernelservices.ini [Service_sqliimport.registry] Class
`expImportTransforms`	class	`extension/sqliimport/classes/exp/expimporttransforms.php:18`	The transforms of a mapping: the built-in ones and those of kernel services tagged sqliimport.transform.	–
`SQLIImportToken`	class extends eZPersistentObject	`extension/sqliimport/classes/sqliimporttoken.php:12`	Token class for SQLI Import Handles import status	–

kernel/classes (5)

All patterns of kernel/classes

Class	Kind	File	Description	Extension point
`eZCacheTrash`	class	`kernel/classes/ezcachetrash.php:38`	Removes a cache directory by renaming it out of the way first.	–
`eZDataType`	class	`kernel/classes/ezdatatype.php:46`	–	–
`eZWorkflowEventType`	class extends eZWorkflowType	`kernel/classes/ezworkfloweventtype.php:18`	–	–
`eZWorkflowGroupType`	class extends eZWorkflowType	`kernel/classes/ezworkflowgrouptype.php:18`	–	–
`eZWorkflowType`	class	`kernel/classes/ezworkflowtype.php:18`	–	–

kernel/classes/audit (4)

All patterns of kernel/classes/audit

Class	Kind	File	Description	Extension point
`expAudit`	class	`kernel/classes/audit/expaudit.php:26`	The audit: what happens in Exponential, recorded as hash-chained JSON lines per channel (doc/eng-us/bc/6.0/audit.md, "The developer API (Z3)").	–
`expAuditFormatRegistry`	class	`kernel/classes/audit/format/expauditformatregistry.php:16`	The archive format registry: [AuditArchiveSettings] FormatHandlers[]= (RAD survey registry "auditformats").	–
`expAuditSinkRegistry`	class	`kernel/classes/audit/sinks/expauditsinkregistry.php:23`	The sink registry and delivery (doc/eng-us/bc/6.0/audit.md, "Sinks (Q7)", "The sink registry").	–
`expAuditSourceRegistry`	class	`kernel/classes/audit/console/expauditsourceregistry.php:16`	The registry of the audit console's sources (expAuditSource), from audit.ini [AuditSourceSettings] Sources[]: which are registered, which work here,…	–

kernel/classes/datatypes (1)

All patterns of kernel/classes/datatypes

Class	Kind	File	Description	Extension point
`eZURL`	class extends eZPersistentObject	`kernel/classes/datatypes/ezurl/ezurl.php:23`	–	extension/AdminAid/settings/aid.ini [SearchDatabase] ClassList[]

kernel/classes/debugbar (1)

All patterns of kernel/classes/debugbar

Class	Kind	File	Description	Extension point
`expDebugBarRegistry`	class	`kernel/classes/debugbar/expdebugbarregistry.php:20`	Reads settings/debugbar.ini (and every extension's debugbar.ini.append.php, merged by eZINI):	–

kernel/classes/help (2)

All patterns of kernel/classes/help

Class	Kind	File	Description	Extension point
`expHelpContextRegistry`	class	`kernel/classes/help/exphelpcontextregistry.php:45`	Context help: which help page answers "help for this page", for a module, view and design.	–
`expHelpHighlighter`	class	`kernel/classes/help/exphelphighlighter.php:29`	Server-side syntax highlighting of the code blocks of the help pages (exphelp, doc/eng-us/features/6.0/help-system.md), without JavaScript or an exte…	–

kernel/classes/ini (2)

All patterns of kernel/classes/ini

Class	Kind	File	Description	Extension point
`expIniActionRegistry`	class	`kernel/classes/ini/actions/expiniactionregistry.php:22`	The actions of the exp:ini command and the scope providers of the settings editor, read from ini.ini [IniCommandSettings]:	–
`expIniEditor`	class	`kernel/classes/ini/expinieditor.php:27`	The INI editor.	–

kernel/classes/mailpreferences (1)

All patterns of kernel/classes/mailpreferences

Class	Kind	File	Description	Extension point
`expMailCategoryRegistry`	class	`kernel/classes/mailpreferences/expmailcategoryregistry.php:26`	All categories of e-mail, in the order the preference page shows them:	–

kernel/classes/notification (1)

All patterns of kernel/classes/notification

Class	Kind	File	Description	Extension point
`eZNotificationEventType`	class	`kernel/classes/notification/eznotificationeventtype.php:18`	–	–

kernel/classes/subitems (1)

All patterns of kernel/classes/subitems

Class	Kind	File	Description	Extension point
`expSubitemsColumnRegistry`	class	`kernel/classes/subitems/expsubitemscolumnregistry.php:23`	The registry of the admin subitems list columns ("Table options").	–

kernel/classes/syscard (1)

All patterns of kernel/classes/syscard

Class	Kind	File	Description	Extension point
`expSysCardRegistry`	class	`kernel/classes/syscard/expsyscardregistry.php:30`	The providers of the system card and how they run (settings/syscard.ini [Providers] and [Runtime]):	–

kernel/classes/transfer (1)

All patterns of kernel/classes/transfer

Class	Kind	File	Description	Extension point
`expKernelTransferRegistry`	class	`kernel/classes/transfer/expkerneltransferregistry.php:30`	The transfer registry: every import and export tool of the installation, as each declares itself in kernelservices.ini (a [Service_transfer.] block t…	settings/kernelservices.ini [Service_transfer.registry] Class

kernel/classes/workflowtypes (1)

All patterns of kernel/classes/workflowtypes

Class	Kind	File	Description	Extension point
`eZPaymentGatewayType`	class extends eZWorkflowEventType	`kernel/classes/workflowtypes/event/ezpaymentgateway/ezpaymentgatewaytype.php:20`	–	–

kernel/private (1)

All patterns of kernel/private

Class	Kind	File	Description	Extension point
`ezpRestDbConfig`	class	`kernel/private/rest/classes/lazy.php:12`	–	–

kernel/private/classes/httpcache (1)

All patterns of kernel/private/classes/httpcache

Class	Kind	File	Description	Extension point
`ezpHttpCacheListener`	class	`kernel/private/classes/httpcache/ezphttpcachelistener.php:27`	The kernel side of the role-aware HTTP cache: stores rendered content views for the early exit and Velocity's parent to serve, and turns the kernel's…	–

lib/ezdb (1)

All patterns of lib/ezdb

Class	Kind	File	Description	Extension point
`eZDBQueryCache`	class	`lib/ezdb/classes/ezdbquerycache.php:37`	A result cache for the SQL drivers (MySQL/MariaDB, PostgreSQL, SQLite): the rows a SELECT returned, answered again until a write to one of the tables…	–

lib/ezi18n (1)

All patterns of lib/ezi18n

Class	Kind	File	Description	Extension point
`eZTranslatorManager`	class	`lib/ezi18n/classes/eztranslatormanager.php:31`	–	–

lib/ezimage (1)

All patterns of lib/ezimage

Class	Kind	File	Description	Extension point
`eZImageInterface`	class	`lib/ezimage/classes/ezimageinterface.php:20`	–	–

lib/ezsession (1)

All patterns of lib/ezsession

Class	Kind	File	Description	Extension point
`eZSession`	class	`lib/ezsession/classes/ezsession.php:67`	Exponential Session interface class	–

lib/ezutils (2)

All patterns of lib/ezutils

Class	Kind	File	Description	Extension point
`eZExecution`	class	`lib/ezutils/classes/ezexecution.php:34`	–	–
`eZExpiryHandler`	class	`lib/ezutils/classes/ezexpiryhandler.php:16`	Keeps track of expiry keys and their timestamps	–

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Documentation license

This documentation is free documentation, licensed under the GNU Free Documentation License 1.3 or later.

Registry #

Classes by area #

extension/expai (4) #

extension/expservices (1) #

extension/ezoe (1) #

extension/nxc_powercontent (1) #

extension/sqliimport (3) #

kernel/classes (5) #

kernel/classes/audit (4) #

kernel/classes/datatypes (1) #

kernel/classes/debugbar (1) #

kernel/classes/help (2) #

kernel/classes/ini (2) #

kernel/classes/mailpreferences (1) #

kernel/classes/notification (1) #

kernel/classes/subitems (1) #

kernel/classes/syscard (1) #

kernel/classes/transfer (1) #

kernel/classes/workflowtypes (1) #

kernel/private (1) #

kernel/private/classes/httpcache (1) #

lib/ezdb (1) #

lib/ezi18n (1) #

lib/ezimage (1) #

lib/ezsession (1) #

lib/ezutils (2) #

Documentation license

Registry

Classes by area

extension/expai (4)

extension/expservices (1)

extension/ezoe (1)

extension/nxc_powercontent (1)

extension/sqliimport (3)

kernel/classes (5)

kernel/classes/audit (4)

kernel/classes/datatypes (1)

kernel/classes/debugbar (1)

kernel/classes/help (2)

kernel/classes/ini (2)

kernel/classes/mailpreferences (1)

kernel/classes/notification (1)

kernel/classes/subitems (1)

kernel/classes/syscard (1)

kernel/classes/transfer (1)

kernel/classes/workflowtypes (1)

kernel/private (1)

kernel/private/classes/httpcache (1)

lib/ezdb (1)

lib/ezi18n (1)

lib/ezimage (1)

lib/ezsession (1)

lib/ezutils (2)