[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'DB' (#fcl)

TIndexDefs

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

A class to keep a list of index definitions

Declaration

Source position: db.pas line 1066

type TIndexDefs = class(TDefCollection)

public

  constructor Create(); virtual; overload;

  

Create a new TIndexDefs instance

  procedure Add(); overload;

  

Add a new index definition with given name and options

  function AddIndexDef;

  

Add a new, empty, index definition

  function Find();

  

Find an index by name

  function FindIndexForFields();

  

Find index definition based on field names

  function GetIndexForFields();

  

Get index definition based on field names

  procedure Update; virtual; overload;

  

Called whenever one of the items changes

  property Items []: TIndexDef; default; [rw]

  

Indexed access to the index definitions

end;

Inheritance

TIndexDefs

  

A class to keep a list of index definitions

|

TDefCollection

  

Definition collection

|

TOwnedCollection

|

TCollection

|

TPersistent,IFPObserved

|

TObject

Description

TIndexDefs is used to keep a collection of index (sort order) definitions. It can be used by classes that provide in-memory or on-disk indexes to provide a list of available indexes.

See also

TIndexDef

  

Index definition

TIndexDefs.Items

  

Indexed access to the index definitions


Documentation generated on: Jun 22 2020