restatapi (version 0.24.2)

get_eurostat_cache: Load an object from cache

Description

Search and load the object (dataset/toc/DSD) from cache

Usage

get_eurostat_cache(oname, cache_dir = NULL, verbose = FALSE)

Value

the requested object if exists in the '.restatapi_env' or in the cache_dir, otherwise it returns the NULL value.

Arguments

oname

a character string with the name of the object (toc, dataset id, DSD id)

cache_dir

a path to a cache directory to search in. The default is NULL, in this case the object is searched in the memory (in the .restatapi_env). Otherwise if the cache_dir directory does not exist it searches the 'restatapi' directory in the temporary directory from tempdir(). Directory can also be set with options(restatapi_cache_dir=...).

verbose

a logical value with default FALSE, so detailed messages (for debugging) will not printed. Can be set also with options(restatapi_verbose=TRUE).

Details

If the given name or the beginning of the name (for datasets) found in the cache then it returns the value of the object otherwise it returns NULL.

Examples

# \dontshow{
if (parallel::detectCores()<=2){
   options(restatapi_cores=1)
}else{
   options(restatapi_cores=2)
}    
# }
dt<-data.frame(txt=c("a","b","c"),nr=c(1,2,3))
put_eurostat_cache(dt,"teszt")
get_eurostat_cache("teszt",verbose=TRUE)