Method: Replaces the contents in the cache, if contents already exist.

Method: Makes private properties un-settable for backward compatibility.

Method: Adds data to the cache if it doesn’t already exist.

Method: Sets the list of global cache groups.

Method: Decrements numeric cache item’s value.

Method: Removes the contents of the cache key in the group.

Method: Clears the object cache of all data.

Method: Retrieves the cache contents, if it exists.

Method: Increments numeric cache item’s value.

Method: Makes private properties checkable for backward compatibility.