software.amazon.jdbc.plugin.encryption.cache

Class DataKeyCache

java.lang.Object

software.amazon.jdbc.plugin.encryption.cache.DataKeyCache

public class DataKeyCache
extends java.lang.Object

Thread-safe cache for data keys with configurable expiration and size limits. Provides metrics for cache performance monitoring.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DataKeyCache.CacheStats Cache statistics data class.

Constructor Summary

Constructors

Constructor and Description
DataKeyCache(EncryptionConfig config)

Method Summary

Modifier and Type	Method and Description
void	clear() Clears all entries from the cache.
byte[]	get(java.lang.String keyId) Retrieves a data key from the cache.
DataKeyCache.CacheStats	getStats() Returns cache statistics.
void	put(java.lang.String keyId, byte[] dataKey) Stores a data key in the cache.
void	remove(java.lang.String keyId) Removes a specific key from the cache.
void	shutdown() Shuts down the cache and cleans up resources.

Methods inherited from class java.lang.Object

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

Constructor Detail

DataKeyCache

public DataKeyCache(EncryptionConfig config)

Method Detail

get

public byte[] get(java.lang.String keyId)

Retrieves a data key from the cache.

Parameters:

keyId - the key identifier

Returns:

decrypted data key bytes, or null if not found or expired

put

public void put(java.lang.String keyId,
                byte[] dataKey)

Stores a data key in the cache.

Parameters:

keyId - the key identifier

dataKey - the decrypted data key bytes

remove

public void remove(java.lang.String keyId)

Removes a specific key from the cache.

Parameters:

keyId - the key identifier to remove

clear

public void clear()

Clears all entries from the cache.

getStats

public DataKeyCache.CacheStats getStats()

Returns cache statistics.

Returns:

CacheStats object with current metrics

shutdown

public void shutdown()

Shuts down the cache and cleans up resources.