Package growthbook.sdk.java.sandbox

Class FileCachingManagerImpl

java.lang.Object

growthbook.sdk.java.sandbox.FileCachingManagerImpl

All Implemented Interfaces:

GbCacheManager

public class FileCachingManagerImpl
extends Object
implements GbCacheManager

Class responsible for caching data to a file

Constructor Summary

Constructors

Constructor	Description
FileCachingManagerImpl(String filePath)

Method Summary

Modifier and Type	Method	Description
void	clearCache()	Clears all cache files in the directory
Long	getLastUpdatedMillis(String fileName)	Returns when the cached value was last updated, in epoch milliseconds.
String	loadCache(String fileName)	Method that fetches data from cache by file name
void	saveContent(String fileName, String content)	Method that saves feature JSON as String to a cache file

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

FileCachingManagerImpl

public FileCachingManagerImpl(String filePath)

Method Details

saveContent

public void saveContent(String fileName,
 String content)

Method that saves feature JSON as String to a cache file

Specified by:

saveContent in interface GbCacheManager

Parameters:

fileName - The name of file in the cache directory

content - Feature JSON as String type

loadCache

public String loadCache(String fileName)

Method that fetches data from cache by file name

Specified by:

loadCache in interface GbCacheManager

Parameters:

fileName - The name of the file in the cache directory.

Returns:

The cached data as a String.

getLastUpdatedMillis

public Long getLastUpdatedMillis(String fileName)

Description copied from interface: GbCacheManager

Returns when the cached value was last updated, in epoch milliseconds.

The optional background feature refresh interval uses this timestamp to decide whether cached features are fresh enough to skip a network refresh. Custom cache implementations may return null when timestamp tracking is unsupported or when the key does not exist; in that case the SDK treats cache freshness as unknown and performs the network refresh. Implementations should throw FeatureCacheException for real cache access failures.

Specified by:

getLastUpdatedMillis in interface GbCacheManager

clearCache

public void clearCache()

Clears all cache files in the directory

Specified by:

clearCache in interface GbCacheManager