CacheBox Provider

The CacheBox provider is our very own enterprise cache implementation that has been part of the core since its initial baby step versions. Our caching engine has matured over the years and it has been proven effective, fast, scalable and very user friendly. Here are the two implementations for our CacheBox provider:

  1. CacheBoxProvider : Our base CacheBox provider caching engine
  2. CacheBoxColdBoxProvider : A subclass of CacheBoxProvider that enables caching operations for ColdBox applications

Properties

Key Type Required Default Description
ObjectDefaultTimeout numeric false 60 The default lifespan of an object in minutes
ObjectDefaultLastAccessTimeout numeric false 30 The default last access or idle timeout in minutes
UseLastAccessTimeouts Boolean false true Use or not idle timeouts
ReapFrequency numeric false 2 The delay in minutes to produce a cache reap (Not guaranteed)
FreeMemoryPercentageThreshold numeric false 0 The numerical percentage threshold of free JVM memory to have available before caching. If the JVM free memory falls below this setting, the cache will run the eviction policies in order to cache new objects. (0=Unlimited)
MaxObjects numeric false 200 The maximum number of objects for the cache
EvictionPolicy string or path false LRU The eviction policy algorithm class to use.*
EvictCount numeric false 1 The number of objects to evict once an execution of the policy is requested. You can increase this to make your evictions more aggressive
objectStore string false ConcurrentStore ConcurrentStore The object store to use for caching objects.**
ColdboxEnabled Boolean false false A flag that switches on/off the usage of either a plain vanilla CacheBox provider or a ColdBox enhanced provider. This must be true when used within a ColdBox application and it applies for the default cache ONLY.

* Coldbox ships with the following eviction policies

  • LRU (Least Recently Used)
  • LFU (Least Frequently Used)
  • FIFO (First In First Out)
  • LIFO (Last In First Out)
  • Custom: You can also build your own and pass the instantiation path in this setting

** ColdBox ships with the following object stores:

  • ConcurrentStore - Uses concurrent hashmaps for increased performance
  • ConcurrentSoftReferenceStore - Concurrent hashmaps plus java soft references for JVM memory sensitivity
  • DiskStore - Uses a physical disk location for caching (Uses java serialization for complex objects)
  • JDBCStore - Uses a JDBC datasource for caching (Uses java serialization for complex objects)
  • Custom : You can also build your own and pass the instantiation path in this setting

Please also note that each of the object stores can have extra configuration properties that you will need to set. So for that, let's delve a little deeper into object stores.

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