Call this method to close the Store when you are done using it.
Call this method to close the Store when you are done using it.
This method should be overridden by implementations if any actions need to be taken to close / disconnect from the store.
Get mutiple values at once.
Get mutiple values at once.
A default implementation using get() is provided, but this should be overridden if a more efficient implementation exists for a particular backing store.
Read-only store