FFileCacheConfig | Unreal Engine 5.7 Documentation

Configuration structure required to construct a FFileCache


Name	FFileCacheConfig
Type	struct
Header File	/Engine/Source/Developer/DirectoryWatcher/Public/FileCache.h
Include Path	#include "FileCache.h"

Syntax

struct FFileCacheConfig

Name	Remarks	Include Path	Unreal Specifiers
FFileCacheConfig ( FString InDirectory, FString InCacheFile )		FileCache.h

Name	Remarks
EChangeDetection	Enum that specifies what changes are required for a change to be reported.

Name	Type	Remarks	Include Path
bDetectChangesSinceLastRun	bool	When true, changes to the directory since the cache shutdown will be detected and reported.	FileCache.h
CacheFile	FString	String specifying the file that the cache should be saved to.	FileCache.h
CustomChangeLogic	TFunction< TOptional< bool >(const FImmutableString &, const FFileData &)>	User-specified custom change detection logic.	FileCache.h
Directory	FString	String specifying the directory on disk that the cache should reflect	FileCache.h
PathType	EPathType	Path type to return, relative to the directory or absolute.	FileCache.h
Rules	FMatchRules	List of rules which define what we will be watching	FileCache.h

Name	Type	Remarks	Include Path
bDetectMoves	bool	True to detect moves and renames (based on file hash), false otherwise. Implies bRequireFileHashes.	FileCache.h
bRequireFileHashes	bool	When true, the cache will also calculate MD5 hashes for files.	FileCache.h
ChangeDetectionBits	TBitArray	Bitfied specifying how we will be detecting changes. See EChangeDetection.	FileCache.h

Name	Remarks	Include Path
FFileCacheConfig & DetectChangesFor ( EChangeDetection ChangeType, bool Value )	Instruct the cache to report the specified changes to files	FileCache.h
FFileCacheConfig & DetectMoves ( bool bInDetectMoves )	Set up this cache to detect moves	FileCache.h
FFileCacheConfig & RequireFileHashes ( bool bInRequireFileHashes )	Set up this cache to generate MD5 hashes for its constituent files	FileCache.h