Class Reference
IRIS for UNIX 2019.2
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  [%SYS] >  [%iKnow] >  [Objects] >  [MetadataField]
Private  Storage   

persistent class %iKnow.Objects.MetadataField extends %Persistent

Note: the use of this class is no longer recommended for accessing elements of a specific domain. For those scenarios, %iKnow.Tables.Utils offers a more flexible and customizable way of projecting iKnow domain data to SQL

This is a read-only object representation wrapping the internal iKnow data structures for Metadata fields.

This class can be used from ObjectScript or SQL to access a single or small number of entries, but the storage mappings are not meant to support elaborate or complex queries targeting this SQL table.

Please use the predefined queries in %iKnow.Queries.MetadataAPI and other query classes to consult metadata as the internal global structures are designed to optimize performance for these queries rather than general-purpose access.

Inventory

Parameters Properties Methods Queries Indices ForeignKeys Triggers
1 11 2


Summary

Properties
DataType DomainId FieldId HasBitstringStorage
Hidden IsCaseSensitive ListOfValuesId Name
StorageType SupportedOperators ValidateListOfValues

Methods
%AddToSaveSet %AddToSyncSet %CheckConstraints %CheckConstraintsForExtent
%ClassIsLatestVersion %ClassName %ComposeOid %ConstructClone
%Delete %DeleteExtent %DeleteId %DispatchClassMethod
%DispatchGetModified %DispatchGetProperty %DispatchMethod %DispatchSetModified
%DispatchSetMultidimProperty %DispatchSetProperty %Exists %ExistsId
%Extends %GUID %GUIDSet %GetLock
%GetParameter %GetSwizzleObject %Id %IsA
%IsModified %IsNull %KillExtent %LockExtent
%LockId %New %NormalizeObject %ObjectIsNull
%ObjectModified %Oid %OnBeforeAddToSync %OnDetermineClass
%Open %OpenId %OriginalNamespace %PackageName
%PurgeIndices %Reload %RemoveFromSaveSet %ResolveConcurrencyConflict
%RollBack %Save %SaveDirect %SerializeObject
%SetModified %SortBegin %SortEnd %SyncObjectIn
%SyncTransport %UnlockExtent %UnlockId %ValidateIndices
%ValidateObject


Parameters

• parameter READONLY = 1;
READONLY = 1 means that objects can be created, opened but not saved or deleted. Tables are projected to SQL as READONLY.

Properties

• property DataType as %String;
• property DomainId as %Integer;
• property FieldId as %Integer;
• property HasBitstringStorage as %Boolean [ Calculated ];
• property Hidden as %Boolean;
• property IsCaseSensitive as %Boolean;
• property ListOfValuesId as %Integer;
• property Name as %String(MAXLEN=1000);
• property StorageType as %Integer;
• property SupportedOperators as %String [ Calculated ];
• property ValidateListOfValues as %Boolean;

Indices

•index (NameIndex on DomainId,Name) [Unique];
•index (PKINDEX on DomainId,FieldId) [IdKey,PrimaryKey,Unique];


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