Navigation
API > API/Developer > API/Developer/DerivedDataCache
Inheritance Hierarchy
- FValue
- FValueWithId
References
| Module | DerivedDataCache |
| Header | /Engine/Source/Developer/DerivedDataCache/Public/DerivedDataValue.h |
| Include | #include "DerivedDataValue.h" |
Syntax
class FValueWithId : public UE::DerivedData::FValue
Remarks
A value with an ID. Null if both ID and value are null.
May have a null value with a non-null ID. A non-null value must have a non-null ID.
Constructors
| Type | Name | Description | |
|---|---|---|---|
 |
FValueWithId () |
Construct a null value. | |
 |
FValueWithId
(
const FValueId& Id, |
Construct a value with a non-null ID and forward the other args to FValue(). |
Functions
| Type | Name | Description | |
|---|---|---|---|
  |
const FValueId & | GetId () |
Returns the ID for the value. |
  |
bool | IsNull () |
Whether this is null. |
  |
bool | IsValid () |
Whether this is not null. |
  |
FValueWithId | RemoveData () |
Create a copy of the value with the data removed. |
 |
void | Reset () |
Reset this to null. |
Operators
| Type | Name | Description | |
|---|---|---|---|
  |
Whether this is not null. |
Constants
| Name | Description |
|---|---|
| Null | A null value with a null ID. |