Package 'bank'

Title: Extra Cache
Description: More cache backends.
Authors: Colin Fay [aut, cre]
Maintainer: Colin Fay <[email protected]>
License: MIT + file LICENSE
Version: 0.0.0.9002
Built: 2024-11-17 03:24:18 UTC
Source: https://github.com/ThinkR-open/bank

Help Index


A Caching object for MongoDB

Description

A Caching object for MongoDB

A Caching object for MongoDB

Details

Create a cache backend with MongoDB.

Methods

Public methods


Method new()

Start a new mongo cache

Usage
cache_mongo$new(
  db = "test",
  url = "mongodb://localhost",
  prefix = "fs",
  options = mongolite::ssl_options(),
  algo = "sha512",
  compress = FALSE
)
Arguments
db

name of database

url

address of the mongodb server in mongo connection string URI format

prefix

string to prefix the collection name

options

additional connection options such as SSL keys/certs.

algo

for {memoise} compatibility. The digest() algorithm.

compress

for {memoise} compatibility. Should the data be compressed?

Returns

A cache_mongo object


Method get()

Get a key from the cache

Usage
cache_mongo$get(key)
Arguments
key

Name of the key.

Returns

The value stored using the key


Method set()

Set a key in the cache

Usage
cache_mongo$set(key, value)
Arguments
key

Name of the key.

value

Value to store

Returns

Used for side effect


Method has_key()

Does the cache contains a given key?

Usage
cache_mongo$has_key(key)
Arguments
key

Name of the key.

Returns

TRUE/FALSE


Method reset()

Clear all the cache

Usage
cache_mongo$reset()
Returns

Used for side-effect


Method remove()

Remove a key/value pair

Usage
cache_mongo$remove(key)
Arguments
key

Name of the key.

Returns

Used for side-effect


Method keys()

List all the keys in the cache

Usage
cache_mongo$keys()
Returns

A list of keys


Method digest()

Function that runs an hash algo. For compatibily with {memoise}.

Usage
cache_mongo$digest(...)
Arguments
...

the value to hash

Returns

A function


Method clone()

The objects of this class are cloneable with this method.

Usage
cache_mongo$clone(deep = FALSE)
Arguments
deep

Whether to make a deep clone.


A Caching object for postgres

Description

A Caching object for postgres

A Caching object for postgres

Details

Create a cache backend with postgres

Methods

Public methods


Method new()

Start a new postgres cache

Usage
cache_postgres$new(
  ...,
  cache_table = "bankrcache",
  algo = "sha512",
  compress = FALSE
)
Arguments
...

Parameters passes do DBI::dbConnect(RPostgres::Postgres(), ...)

cache_table

On initialize(), the cache object will create a table to store the cache. Default name is bankrcache. Change it if you already have a table named bankrcache in your DB.

algo

for {memoise} compatibility, the digest() algorithm

compress

for {memoise} compatibility, should the data be compressed?

Returns

A cache_postgres object


Method has_key()

Does the cache contains a given key?

Usage
cache_postgres$has_key(key)
Arguments
key

Name of the key.

Returns

TRUE/FALSE


Method get()

Get a key from the cache

Usage
cache_postgres$get(key)
Arguments
key

Name of the key.

Returns

The value stored using the key


Method set()

Set a key in the cache

Usage
cache_postgres$set(key, value)
Arguments
key

Name of the key.

value

Value to store

Returns

Used for side effect


Method reset()

Clear all the cache

Usage
cache_postgres$reset()
Returns

Used for side-effect


Method remove()

Remove a key/value pair

Usage
cache_postgres$remove(key)
Arguments
key

Name of the key.

Returns

Used for side-effect


Method keys()

List all the keys in the cache

Usage
cache_postgres$keys()
Returns

A list of keys


Method digest()

Function that runs an hash algo. For compatibily with {memoise}

Usage
cache_postgres$digest(...)
Arguments
...

the value to hash

Returns

A function


Method clone()

The objects of this class are cloneable with this method.

Usage
cache_postgres$clone(deep = FALSE)
Arguments
deep

Whether to make a deep clone.


A Caching object for redis

Description

A Caching object for redis

A Caching object for redis

Details

Create a cache backend with redis

Methods

Public methods


Method new()

Start a new redis cache

Usage
cache_redis$new(..., version = NULL, algo = "sha512", compress = FALSE)
Arguments
...

Named configuration options passed to redis_config, used to create the environment (notable keys include host, port, and the environment variable REDIS_URL). For redis_available, arguments are passed through to hiredis.

version

Version of the interface to generate. If given as a string to numeric version, then only commands that exist up to that version will be included. If given as TRUE, then we will query the Redis server (with INFO) and extract the version number that way.

algo

for {memoise} compatibility, the digest() algorithm

compress

for {memoise} compatibility, should the data be compressed?

Returns

A cache_redis object


Method get()

Get a key from the cache

Usage
cache_redis$get(key)
Arguments
key

Name of the key.

Returns

The value stored using the key


Method set()

Set a key in the cache

Usage
cache_redis$set(key, value)
Arguments
key

Name of the key.

value

Value to store

Returns

Used for side effect


Method has_key()

Does the cache contains a given key?

Usage
cache_redis$has_key(key)
Arguments
key

Name of the key.

Returns

TRUE/FALSE


Method reset()

Clear all the cache

Usage
cache_redis$reset()
Returns

Used for side-effect


Method remove()

Remove a key/value pair

Usage
cache_redis$remove(key)
Arguments
key

Name of the key.

Returns

Used for side-effect


Method keys()

List all the keys in the cache

Usage
cache_redis$keys()
Returns

A list of keys


Method digest()

Function that runs an hash algo. For compatibily with {memoise}

Usage
cache_redis$digest(...)
Arguments
...

the value to hash

Returns

A function


Method clone()

The objects of this class are cloneable with this method.

Usage
cache_redis$clone(deep = FALSE)
Arguments
deep

Whether to make a deep clone.