R: Save Hashmaps

save_hashmap {hashmap}

R Documentation

Save Hashmaps

Description

save_hashmap writes a Hashmap's data to the specified file, which can be passed to load_hashmap at a later point in time to recreate the object.

Usage

save_hashmap(x, file, overwrite = TRUE, compress = FALSE)

Arguments

`x`	an object created by a call to `hashmap`.
`file`	a filename where the object's data will be saved.
`overwrite`	if `TRUE` (default) and `file` exists, it will be overwritten. If `FALSE` and `file` exists, an error is thrown.
`compress`	a logical value or the type of file compression to use; defaults to `FALSE` for better performance. See `?saveRDS` for details.

Details

Saving is done by calling base::saveRDS on the object's data.frame representation, x$data.frame(). Attempting to save an empty Hashmap results in an error.

Value

Nothing on success; an error on failure.

Examples

H <- hashmap(sample(letters[1:10]), sample(1:10))
tf <- tempfile()

save_hashmap(H, tf)

inherits(
    try(save_hashmap(H, tf, FALSE), silent = TRUE),
    "try-error"
)

H$insert("zzzzz", 123L)
save_hashmap(H, tf)

load_hashmap(tf)

[Package hashmap version 0.2.2 Index]