storr_external

Another <code>storr</code> driver to handle the
actual storage.

storage_driver

A function to run to fetch data when a key is
not found in the store.  This function must take arguments
<code>key</code> and <code>namespace</code> and return an R object.  It must
throw an error if the external resource cannot be resolved.

fetch_hook

Default namespace (see
<code><a rd-options="" href="/link/storr?package=storr&version=1.0.1" data-mini-rdoc="storr::storr">storr</a></code>)

default_namespace


storr for fetching external resources.  This driver is used where
will try to fetch from an external data source if a resource can
not be found locally.  This works by checking to see if a key is
present in the storr (and if so returning it).  If it is not
found, then the function <code>fetch_hook</code> is run to fetch it.


Creates and manages simple key-value stores.  These can
use a variety of approaches for storing the data.  This package
implements the base methods and support for file system and
in-memory stores.  A vignette shows how additional drivers can be
created, and stubs exist for supporting 'Redis' databases.

storr_external: Storr that kooks for external resources

Description

Usage

Arguments

Details