Class DynamicConfigApplier

java.lang.Object

com.loomcache.server.config.DynamicConfigApplier

public class DynamicConfigApplier
extends Object

Applies dynamic configuration changes to running components without requiring restart.

Built-in configuration keys:

• cache.max-size - maximum number of entries in cache
• cache.eviction-policy - eviction policy (LRU, LFU, FIFO)
• cache.ttl-default-ms - default TTL for cache entries
• network.max-connections - maximum concurrent connections
• network.read-timeout-ms - socket read timeout
• security.rate-limit-per-second - rate limit for requests
• log.level - logging level (DEBUG, INFO, WARN, ERROR)

Uses pattern matching on namespace to route changes to correct handlers. Supports rollback on failure.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	DynamicConfigApplier.ConfigChangeHandler	Functional interface for applying configuration changes.

Constructor Summary

Constructors

Constructor	Description
DynamicConfigApplier(ClusterConfigManager configManager)	Create a new DynamicConfigApplier.

Method Summary

Modifier and Type	Method	Description
boolean	applyChange(String key, @Nullable String oldValue, String newValue)	Apply a configuration change, with automatic rollback on failure.
ConfigChangeListener	createApplierListener()	Create a config change listener that applies changes dynamically.
void	registerHandler(String key, DynamicConfigApplier.ConfigChangeHandler handler)	Register a handler for a configuration key.
boolean	rollback(String key)	Rollback a configuration change.

Methods inherited from class Object

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

Constructor Details

DynamicConfigApplier

public DynamicConfigApplier(ClusterConfigManager configManager)

Create a new DynamicConfigApplier.

Parameters:

configManager - the cluster config manager

Method Details

registerHandler

public void registerHandler(String key,
 DynamicConfigApplier.ConfigChangeHandler handler)

Register a handler for a configuration key.

Parameters:

key - the configuration key

handler - the handler function

applyChange

public boolean applyChange(String key,
 @Nullable String oldValue,
 String newValue)

Apply a configuration change, with automatic rollback on failure.

Parameters:

key - the configuration key

oldValue - the previous value

newValue - the new value

Returns:

true if applied successfully, false on failure

rollback

public boolean rollback(String key)

Rollback a configuration change.

Parameters:

key - the configuration key to rollback

Returns:

true if rollback succeeded, false otherwise

createApplierListener

public ConfigChangeListener createApplierListener()

Create a config change listener that applies changes dynamically.

Returns:

a ConfigChangeListener that applies changes