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# This file contains functions that operate on Redis 'hash' values.
redisHGet <- function(key, field, ...)
{
.redisCmd(.raw('HGET'), .raw(key), .raw(field),...)
}
redisHSet <- function(key, field, value, NX=FALSE)
{
value <- .cerealize(value)
cmd <- 'HSET'
if(NX) cmd <- 'HSETNX'
.redisCmd(.raw(cmd), .raw(key), .raw(field), value)
}
redisHIncrBy <- function(key, field, value, ...)
{
.redisCmd(.raw('HINCRBY'),.raw(key),.raw(field),.raw(as.character(value)),...)
}
redisHIncrByFloat <- function(key, field, value, ...)
{
.redisCmd(.raw('HINCRBY'),.raw(key),.raw(field),.raw(as.character(value)),...)
}
redisHExists <- function(key, field)
{
.redisCmd(.raw('HEXISTS'), .raw(key), .raw(field)) == 1
}
redisHDel <- function(key, field)
{
.redisCmd(.raw('HDEL'), .raw(key), .raw(field))
}
redisHLen <- function(key)
{
.redisCmd(.raw('HLEN'), .raw(key))
}
redisHFields <- function(key,...)
{
.redisCmd(.raw('HKEYS'), .raw(key),...)
}
redisHKeys <- function(key,...)
{
redisHFields(key,...)
}
redisHVals <- function(key,...)
{
.redisCmd(.raw('HVALS'), .raw(key),...)
}
redisHGetAll <- function(key,...)
{
retval <- NULL
all <- .redisCmd(.raw('HGETALL'), .raw(key),...)
if(!is.null(all) && length(all)>1) {
retval <- all[seq(2,length(all),by=2)]
names(retval) <- all[seq(1,length(all),by=2)]
}
retval
}
redisHMGet <- function(key, fields, ...) {
a <- c(alist(),list(.raw('HMGET')),...)
a <- c(a, lapply(c(key,fields), charToRaw))
retval <- do.call('.redisCmd', a)
if(length(retval) == length(fields)) names(retval) <- fields
retval
}
redisHMSet <- function(key, values) {
a <- c(alist(),list(.raw('HMSET')),list(.raw(key)))
fieldnames <- lapply(names(values), charToRaw)
for(j in 1:length(values)) {
a <- c(a, fieldnames[j])
if(is.character(values[[j]])) a <- c(a, list(charToRaw(values[[j]])))
else(a <- c(a,list(.cerealize(values[[j]]))))
}
do.call('.redisCmd', a)
}
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