Ends adding a new cache item and commit the changes.
commit
true to commit this item to the cache; otherwise, false to discard it.
key
Unique item identifier.
value
Data for the cache item.
policy
Expiration policy to use with this item.
regionName
Optional region name.
Cache consumers should call this method only if DefaultCacheCapabilities.ExternalResources is supported by this cache (by checking the DefaultCacheCapabilities property.
LEADTOOLS Document classes use this method to quickly add items. It speeds up access and updating the data if the value contains large amount of data such as an image file.