uncache: Retrieve a Value from an Object Store

In bwlewis/feathercache: Simple networked object cache

Description

Retrieve a value corresponding to the specified key from the object store service connection con. If key corresponds to a directory path, then a data frame listing the directory contents is returned. Set key="" to list the contents of the service root directory path.

Usage

uncache(con, key = "")

Arguments

con	An object store connection from register_service.
key	A key name, optionally including a / separated directory path.

Value

Either a data frame directory listing when key corresponds to a directory, or an R value corresponding to key.

Note

Directory entries in the data frame directory listing output are identified by size=NA.

See Also

register_service cache delete

Examples

# Start an example local mongoose backend server
mongoose_start()
con <- register_service()
# Cache the 'iris' dataset in a directory named 'mydata':
cache(con, iris, "mydata/iris")
# Retrieve it from the cache into a new variable called 'x'
x <- uncache(con, "mydata/iris")
# Delete the entire 'mydata' directory
delete(con, "mydata")
mongoose_stop()

bwlewis/feathercache documentation built on May 13, 2019, 9:06 a.m.