https://github.com/kirillseva/cacher

In memory cache interface for R
https://github.com/kirillseva/cacher

Last synced: 5 months ago
JSON representation

In memory cache interface for R

• Host: GitHub
• URL: https://github.com/kirillseva/cacher
• Owner: kirillseva
• Created: 2015-09-30T21:55:18.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2018-03-05T17:21:10.000Z (about 7 years ago)
• Last Synced: 2024-08-13T07:13:55.154Z (8 months ago)
• Language: R
• Homepage:
• Size: 38.1 KB
• Stars: 4
• Watchers: 2
• Forks: 4
• Open Issues: 2
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

• jimsghstars - kirillseva/cacher - In memory cache interface for R (R)

README

        
# cacher [![codecov.io](http://codecov.io/github/kirillseva/cacher/coverage.svg?branch=master)](http://codecov.io/github/kirillseva/cacher?branch=master)[![Build Status](https://travis-ci.org/kirillseva/cacher.svg)](https://travis-ci.org/kirillseva/cacher)

In memory caches for R. Currently implements LRU cache with size parameter.

Create a cache...

```R

cache <- LRUcache("150mb")  # cache with 150mb of size

cache2 <- LRUcache("1GB")   # cache with 1GB of size

cache3 <- LRUcache(3)       # cache that can hold three items of any size (that fits in RAM)

```

Then use it...

```R

cache3$set("key", "this is your value")  # set a value at a particular key...

cache3$get("key")                        # ...and get that value back!

[1] "this is your value"

cache3$peek("key")                       # doesn't alter the key's timestamp

[1] "this is your value"

cache3$exists("key")                     # ...see if your key exists

[1] TRUE

cache3$set("key2", "hi")                 # but if you go over your size...

cache3$set("key3", "hello")

cache3$set("key4", "yo")

cache3$exists("key")                     # ...the oldest key will automatically go away.

[1] FALSE                                # oldness is determined on when the key was most

                                         # recently accessed, not when it was set.

cache3$exists("key4")

[1] TRUE

cache3$forget("key4")                    # you can also explicitly forget a certain key.

cache3$exists("key4")

[1] FALSE

```

## Installation

Install with [devtools](https://github.com/hadley/devtools).

```R

install.packages("devtools")

library(devtools)

install_github("kirillseva/cacher")

```