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Unreal Engine C++ API Reference > Developer > DerivedDataCache
Inheritance Hierarchy
- FValue
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
Type | 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
Type | 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. |