Cache Management

Origin:

Grand 98

Reason:

Allow fast or efficient access to objects that are slow or expensive to obtain.

Synopsis:

Retain for later access a reference to a slow or expensive to obtain object once it has been constructed.

Example:

A program allows users to retrieve information about a product. The information about the product comes from a variety of sources that are slow to access.

Solution:

ObjectKey	Identifies an object to be fetched from the Cache.	Product ID
CacheManager	Objects are stored into and retrieved from the Cache by this class.
ObjectCreator	Class(es) responsible for creating objects not in the Cache.
Cache	Container for cached objects. Has methods to insert, retrieve, and remove objects.