NdbDictionary::Object Class Reference

Meta information about a database object (a table, index, etc) More...

#include <NdbDictionary.hpp>

Inheritance diagram for NdbDictionary::Object:

Public Types
enum	Status {   New, Changed, Retrieved, Invalid,   Altered }
enum	Type {   TypeUndefined = 0, SystemTable = 1, UserTable = 2, UniqueHashIndex = 3,   OrderedIndex = 6, HashIndexTrigger = 7, IndexTrigger = 8, SubscriptionTrigger = 9,   ReadOnlyConstraint = 10, TableEvent = 11, Tablespace = 20, LogfileGroup = 21,   Datafile = 22, Undofile = 23, ReorgTrigger = 19, HashMap = 24 }
enum	State {   StateUndefined = 0, StateOffline = 1, StateBuilding = 2, StateDropping = 3,   StateOnline = 4, StateBackup = 5, StateBroken = 9 }
enum	Store { StoreUndefined = 0, StoreNotLogged = 1, StorePermanent = 2 }
enum	FragmentType {   FragUndefined = 0, FragSingle = 1, FragAllSmall = 2, FragAllMedium = 3,   FragAllLarge = 4, DistrKeyHash = 5, DistrKeyLin = 6, UserDefined = 7,   HashMapPartition = 9 }

Public Member Functions
virtual Status	getObjectStatus () const =0
virtual int	getObjectVersion () const =0
virtual int	getObjectId () const =0

Detailed Description

Meta information about a database object (a table, index, etc)

Definition at line 73 of file NdbDictionary.hpp.

Member Enumeration Documentation

enum NdbDictionary::Object::FragmentType

Type of fragmentation.

This parameter specifies how data in the table or index will be distributed among the db nodes in the cluster.
The bigger the table the more number of fragments should be used. Note that all replicas count as same "fragment".
For a table, default is FragAllMedium. For a unique hash index, default is taken from underlying table and cannot currently be changed.

Enumerator:

FragUndefined	Fragmentation type undefined or default.
FragSingle	Only one fragment.
FragAllSmall	One fragment per node, default.
FragAllMedium	two fragments per node
FragAllLarge	Four fragments per node.

Definition at line 161 of file NdbDictionary.hpp.

enum NdbDictionary::Object::State

Object state

Enumerator:

StateUndefined	Undefined.
StateOffline	Offline, not usable.
StateBuilding	Building, not yet usable.
StateDropping	Offlining or dropping, not usable.
StateOnline	Online, usable.
StateBackup	Online, being backuped, usable.
StateBroken	Broken, should be dropped and re-created.

Definition at line 131 of file NdbDictionary.hpp.

enum NdbDictionary::Object::Status

Status of object

Enumerator:

New	The object only exist in memory and has not been created in the NDB Kernel
Changed	The object has been modified in memory and has to be commited in NDB Kernel for changes to take effect
Retrieved	The object exist and has been read into main memory from NDB Kernel
Invalid	The object has been invalidated and should not be used
Altered	Table has been altered in NDB kernel but is still valid for usage

Definition at line 80 of file NdbDictionary.hpp.

enum NdbDictionary::Object::Store

Object store

Enumerator:

StoreUndefined	Undefined.
StoreNotLogged	Object or data deleted on system restart.
StorePermanent	Permanent. logged to disk.

Definition at line 144 of file NdbDictionary.hpp.

enum NdbDictionary::Object::Type

Object type

Enumerator:

TypeUndefined	Undefined.
SystemTable	System table.
UserTable	User table (may be temporary)
UniqueHashIndex	Unique un-ordered hash index.
OrderedIndex	Non-unique ordered index.
HashIndexTrigger	Index maintenance, internal.
IndexTrigger	Index maintenance, internal.
SubscriptionTrigger	Backup or replication, internal.
ReadOnlyConstraint	Trigger, internal.
TableEvent	Table event.
Tablespace	Tablespace.
LogfileGroup	Logfile group.
Datafile	Datafile.
Undofile	Undofile.

Definition at line 109 of file NdbDictionary.hpp.

Member Function Documentation

virtual Status NdbDictionary::Object::getObjectStatus ( ) const

pure virtual

Get status of object

Implemented in NdbDictionary::HashMap, NdbDictionary::Undofile, NdbDictionary::Datafile, NdbDictionary::Tablespace, NdbDictionary::LogfileGroup, NdbDictionary::Event, NdbDictionary::Index, NdbDictionary::Table, and NdbDictionary::ObjectId.

virtual int NdbDictionary::Object::getObjectVersion ( ) const

pure virtual

Get version of object

Implemented in NdbDictionary::HashMap, NdbDictionary::Undofile, NdbDictionary::Datafile, NdbDictionary::Tablespace, NdbDictionary::LogfileGroup, NdbDictionary::Event, NdbDictionary::Index, NdbDictionary::Table, and NdbDictionary::ObjectId.

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The documentation for this class was generated from the following file:

• storage/ndb/include/ndbapi/NdbDictionary.hpp