Runtime tools : Core components : Externalizers : Concepts : Object cache
  
Object cache
The creation of objects can be expensive so an object cache allows the toolkit to reuse certain objects instead of creating, destroying, and then recreating them. The toolkit provides a object cache each for formats and processors. An object cache is a special region of memory used to temporarily store these objects. The toolkit saves the reusable objects in the cache after using them and can then load and re-initialize them from the cache when needed. The reusable objects must implement the Cacheable interface.
See
Cache structure and growth
Object cache size
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