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> Unreal Engine API Reference > Runtime > CoreUObject > UObject > UMetaData

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UMetaData

An object that holds a map of key/value pairs.

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Inheritance Hierarchy

UObjectBase

UObjectBaseUtility

UObject

UMetaData

References

Module	CoreUObject
Header	/Engine/Source/Runtime/CoreUObject/Public/UObject/MetaData.h
Include	#include "UObject/MetaData.h"

Syntax

class UMetaData : public UObject

Remarks

An object that holds a map of key/value pairs.

Variables

		Name	Description
	TMap< FWeakObje...	ObjectMetaDataMap	Mapping between an object, and its key->value meta-data pairs.
	TMap< FName, FS...	RootMetaDataMap	Root-level (not associated with a particular object) key->value meta-data pairs.

Constructors

	Name	Description
	UMetaData ( const FObjectInitializer& ObjectIn... )
	UMetaData ( FVTableHelper& Helper )	DO NOT USE. This constructor is for internal usage only for hot-reload purposes.

Functions

	Name	Description
void	__DefaultConstructor ( const FObjectInitializer& X )
UObject *...	__VTableCtorCaller ( FVTableHelper& Helper )
void	CopyMetadata ( UObject* SourceObject, UObject* DestObject )	Copy all metadata from the source object to the destination object.
TMap< FName,...	GetMapForObject ( const UObject* Object )	Find the name/value map for metadata for a specific object
FName	GetRemappedKeyName ( FName OldKey )	Returns the remapped key name, or NAME_None was not remapped.
const FStrin...	GetValue ( const UObject* Object, FName Key )	Return the value for the given key in the given property
const FStrin...	GetValue ( const UObject* Object, const TCHAR* Key )	Return the value for the given key in the given property
bool	HasObjectValues ( const UObject* Object )	Is there any metadata for this property? Is there any metadata for this property?
bool	HasValue ( const UObject* Object, FName Key )	Return whether or not the Key is in the meta data
bool	HasValue ( const UObject* Object, const TCHAR* Key )	Return whether or not the Key is in the meta data
void	RemoveMetaDataOutsidePackage()	Removes any metadata entries that are to objects not inside the same package as this UMetaData object.
void	RemoveValue ( const UObject* Object, const TCHAR* Key )	Remove any entry with the supplied Key form the Property's metadata
void	RemoveValue ( const UObject* Object, FName Key )	Remove any entry with the supplied Key form the Property's metadata
void	SetObjectValues ( const UObject* Object, const TMap< FName, FString >& Valu... )	Set the key/value pair in the Property's metadata
void	SetValue ( const UObject* Object, const TCHAR* Key, const TCHAR* Value )	Set the key/value pair in the Object's metadata
void	SetValue ( const UObject* Object, FName Key, const TCHAR* Value )	Set the key/value pair in the Property's metadata
UClass *	StaticClass()	Returns a UClass object representing this class at runtime
EClassCastFl...	StaticClassCastFlags()	Returns the static cast flags for this class
const TCHAR ...	StaticPackage()	Returns the package this class belongs in
void	StaticRegisterNativesUMetaData()

Overridden from UObject

	Name	Description
bool	IsAsset()	Returns true if this object is considered an asset.
bool	NeedsLoadForEditorGame()	Called during saving to include this object in client/servers running in editor builds, even if they wouldn't normally be.
void	Serialize ( FArchive& Ar )	Handles reading, writing, and reference collecting using FArchive.
void	Serialize ( FStructuredArchive::FRecord Record )	Handles reading, writing, and reference collecting using FArchive.

Operators

		Name	Description
	void *	operator new ( const size_t InSize, EInternal InInternalOnly, UObject* InOuter, FName InName, EObjectFlags InSetFlags )	For internal use only; use StaticConstructObject() to create new objects.
	void *	operator new ( const size_t InSize, EInternal* InMem )	For internal use only; use StaticConstructObject() to create new objects.

Typedefs

Name	Description
Super	Typedef for the base class (UObject)
ThisClass	Typedef for UMetaData.

Constants

Name	Description
KeyRedirectMap	Redirect map from deprecated keys to current key names.
StaticClassFlags	Bitwise union of EClassFlags pertaining to this class.

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