Struct trezm_redis::InfoDict

pub struct InfoDict { /* fields omitted */ }

An info dictionary type.

Methods

impl InfoDict

This type provides convenient access to key/value data returned by the "INFO" command. It acts like a regular mapping but also has a convenience method get which can return data in the appropriate type.

For instance this can be used to query the server for the role it's in (master, slave) etc:

let info : redis::InfoDict = redis::cmd("INFO").query(&mut con)?;
let role : Option<String> = info.get("role");

pub fn new(kvpairs: &str) -> InfoDict

Creates a new info dictionary from a string in the response of the INFO command. Each line is a key, value pair with the key and value separated by a colon (:). Lines starting with a hash (#) are ignored.

pub fn get<T: FromRedisValue>(&self, key: &str) -> Option<T>

Fetches a value by key and converts it into the given type. Typical types are String, bool and integer types.

pub fn find(&self, key: &&str) -> Option<&Value>

Looks up a key in the info dict.

pub fn contains_key(&self, key: &&str) -> bool

Checks if a key is contained in the info dicf.

pub fn len(&self) -> usize

Returns the size of the info dict.

pub fn is_empty(&self) -> bool

Checks if the dict is empty.

Trait Implementations

impl Debug for InfoDict

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl FromRedisValue for InfoDict

fn from_redis_value(v: &Value) -> RedisResult<InfoDict>

Given a redis Value this attempts to convert it into the given destination type. If that fails because it's not compatible an appropriate error is generated.

fn from_redis_values(items: &[Value]) -> RedisResult<Vec<Self>>

Similar to from_redis_value but constructs a vector of objects from another vector of values. This primarily exists internally to customize the behavior for vectors of tuples.