Database

This group deals with database interface functions and query specifics/optimisations. More...

Collaboration diagram for Database:

Files
file	CloneDatabase.php
	Helper class for making a copy of the database, mostly for unit testing.
file	DBAccessObjectUtils.php
	This file contains database access object related constants.
file	IDBAccessObject.php
	This file contains database access object related constants.
file	MWLBFactory.php
	Generator of database load balancing objects.

Classes
class	Wikimedia\Rdbms\AtomicSectionIdentifier
	Class used for token representing identifiers for atomic sections from IDatabase instances. More...
class	Wikimedia\Rdbms\ChronologyProtector
	Provide a given client with protection against visible database lag. More...
class	Wikimedia\Rdbms\ConnectionManager
	Database connection manager. More...
class	Wikimedia\Rdbms\CriticalSessionInfo
class	Wikimedia\Rdbms\Database
	Relational database abstraction object. More...
class	Wikimedia\Rdbms\DatabaseDomain
	Class to handle database/schema/prefix specifications for IDatabase. More...
class	Wikimedia\Rdbms\DatabaseFactory
	Constructs Database objects. More...
class	Wikimedia\Rdbms\DatabaseMysqlBase
	MySQL database abstraction layer. More...
class	Wikimedia\Rdbms\DatabaseMysqli
	Database abstraction object for PHP extension mysqli. More...
class	Wikimedia\Rdbms\DatabasePostgres
	Postgres database abstraction layer. More...
class	Wikimedia\Rdbms\DatabaseSqlite
	This is the SQLite database abstraction layer. More...
class	Wikimedia\Rdbms\DBAccessError
	Exception class for attempted DB access. More...
class	Wikimedia\Rdbms\DBConnectionError
class	Wikimedia\Rdbms\DBConnRef
	Helper class used for automatically marking an IDatabase connection as reusable (once it no longer matters which DB domain is selected) and for deferring the actual network connection. More...
class	Wikimedia\Rdbms\DBError
	Database error base class. More...
class	Wikimedia\Rdbms\DBExpectedError
	Base class for the more common types of database errors. More...
class	Wikimedia\Rdbms\DBLanguageError
class	Wikimedia\Rdbms\DBQueryDisconnectedError
class	Wikimedia\Rdbms\DBQueryError
class	Wikimedia\Rdbms\DBQueryTimeoutError
	Error thrown when a query times out. More...
class	Wikimedia\Rdbms\DBReadOnlyError
class	Wikimedia\Rdbms\DBReadOnlyRoleError
	Exception class for attempted DB write access to a DBConnRef with the DB_REPLICA role. More...
class	Wikimedia\Rdbms\DBReplicationWaitError
	Exception class for replica DB wait errors. More...
class	Wikimedia\Rdbms\DBSessionStateError
class	Wikimedia\Rdbms\DBTransactionError
class	Wikimedia\Rdbms\DBTransactionSizeError
class	Wikimedia\Rdbms\DBTransactionStateError
class	Wikimedia\Rdbms\DBUnexpectedError
interface	Wikimedia\Rdbms\Field
	Base for all database-specific classes representing information about database fields. More...
class	Wikimedia\Rdbms\GeneralizedSql
	Lazy-loaded wrapper for simplification and scrubbing of SQL queries for profiling. More...
interface	Wikimedia\Rdbms\IBlob
	Wrapper allowing us to distinguish a blob from a normal string and an array of strings. More...
interface	Wikimedia\Rdbms\IDatabase
	Basic database interface for live and lazy-loaded relation database handles. More...
interface	Wikimedia\Rdbms\ILBFactory
	Manager of ILoadBalancer objects, and indirectly of IDatabase connections. More...
interface	Wikimedia\Rdbms\ILoadBalancer
	Create and track the database connections and transactions for a given database cluster. More...
interface	Wikimedia\Rdbms\ILoadBalancerForOwner
	Internal interface for LoadBalancer methods used by LBFactory. More...
interface	Wikimedia\Rdbms\ILoadMonitor
	Database load monitoring interface. More...
interface	Wikimedia\Rdbms\IMaintainableDatabase
	Advanced database interface for IDatabase handles that include maintenance methods. More...
interface	Wikimedia\Rdbms\IResultWrapper
	Result wrapper for grabbing data queried from an IDatabase object. More...
class	Wikimedia\Rdbms\LBFactory
class	Wikimedia\Rdbms\LBFactoryMulti
	Advanced manager for multiple database sections, e.g. More...
class	Wikimedia\Rdbms\LBFactorySimple
	Manage a simple setup with one primary database and optionally some replicas. More...
class	Wikimedia\Rdbms\LBFactorySingle
	Manage a single hardcoded database connection. More...
class	Wikimedia\Rdbms\LoadBalancer
class	Wikimedia\Rdbms\LoadBalancerSingle
	Trivial LoadBalancer that always returns an injected connection handle. More...
class	Wikimedia\Rdbms\LoadMonitor
	Basic DB load monitor with no external dependencies. More...
class	Wikimedia\Rdbms\LoadMonitorMySQL
	Basic MySQL load monitor with no external dependencies Uses memcached to cache the replication lag for a short time. More...
class	Wikimedia\Rdbms\LoadMonitorNull
class	MWLBFactory
	MediaWiki-specific class for generating database load balancers. More...
class	Wikimedia\Rdbms\QueryStatus
class	Wikimedia\Rdbms\ResultWrapper
	Result wrapper for grabbing data queried from an IDatabase object. More...
class	Wikimedia\Rdbms\SelectQueryBuilder
	Note that none of the methods in this class are stable to override. More...
class	Wikimedia\Rdbms\SessionConsistentConnectionManager
	Database connection manager. More...
class	Wikimedia\Rdbms\Subquery
class	Wikimedia\Rdbms\TransactionIdentifier
	Class used for token representing identifiers for atomic transactions from IDatabase instances. More...
class	Wikimedia\Rdbms\TransactionManager
class	Wikimedia\Rdbms\TransactionProfiler
	Detect high-contention DB queries via profiling calls. More...

Detailed Description

This group deals with database interface functions and query specifics/optimisations.