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FValue

A value is a compressed buffer identified by its raw hash and raw size.

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Inheritance Hierarchy

FValue

FValueWithId

References

Module	DerivedDataCache
Header	/Engine/Source/Developer/DerivedDataCache/Public/DerivedDataValue.h
Include	#include "DerivedDataValue.h"

Syntax

class FValue

Remarks

A value is a compressed buffer identified by its raw hash and raw size.

A value without data may be used as a reference to the value.

Constructors

	Name	Description
	FValue()	Construct a null value, which is a hash and size of zero with no data.
	FValue ( const FCompressedBuffer& Data )	Construct a value from a compressed buffer, which is cloned if not owned.
	FValue ( FCompressedBuffer&& Data )	Construct a null value, which is a hash and size of zero with no data.
	FValue ( const FIoHash& RawHash, uint64 RawSize )	Construct a value reference from the hash and size of its data.

Functions

	Name	Description
FValue	Compress ( const FCompositeBuffer& RawData, uint64 BlockSize )	Compress the buffer to a value using default derived data compression parameters.
FValue	Compress ( const FSharedBuffer& RawData, uint64 BlockSize )	Compress the buffer to a value using default derived data compression parameters.
const FCompr...	GetData()	Returns the compressed buffer for the value. May be null.
const FIoHas...	GetRawHash()	Returns the hash of the raw buffer (uncompressed) for the value.
uint64	GetRawSize()	Returns the size of the raw buffer (uncompressed) for the value.
bool	HasData()	Whether the compressed buffer for the value is available.
FValue	RemoveData()	Create a copy of the value with the data removed.
void	Reset()	Reset this to null.

Constants

Name	Description
Null	A null value.