Enum RedisValue 

pub enum RedisValue {
    Nil,
    Int(i64),
    Float(f64),
    String(String),
    Bytes(Vec<u8>),
    Array(Vec<RedisValue>),
    Bool(bool),
}

Redis 值类型

表示 Redis 中的各种数据类型，提供类型安全的值表示

Variants

Nil

空值

Int(i64)

整数

Float(f64)

浮点数

String(String)

字符串

Bytes(Vec<u8>)

字节数组

Array(Vec<RedisValue>)

数组

Bool(bool)

布尔值

Implementations

impl RedisValue

pub fn as_string(&self) -> Option<String>

转换为字符串

返回

• Some(String): 如果值是字符串类型
• None: 如果值不是字符串类型

示例

use yang_db::RedisValue;

let value = RedisValue::String("hello".to_string());
assert_eq!(value.as_string(), Some("hello".to_string()));

let nil = RedisValue::Nil;
assert_eq!(nil.as_string(), None);

pub fn as_i64(&self) -> Option<i64>

转换为整数

返回

• Some(i64): 如果值是整数类型
• None: 如果值不是整数类型

pub fn as_f64(&self) -> Option<f64>

转换为浮点数

返回

• Some(f64): 如果值是浮点数类型
• None: 如果值不是浮点数类型

pub fn as_bool(&self) -> Option<bool>

转换为布尔值

返回

• Some(bool): 如果值是布尔类型
• None: 如果值不是布尔类型

pub fn as_bytes(&self) -> Option<&[u8]>

转换为字节数组引用

返回

• Some(&[u8]): 如果值是字节数组类型
• None: 如果值不是字节数组类型

pub fn as_array(&self) -> Option<&[RedisValue]>

转换为数组引用

返回

• Some(&[RedisValue]): 如果值是数组类型
• None: 如果值不是数组类型

pub fn is_nil(&self) -> bool

检查是否为 Nil

返回

• true: 如果值是 Nil
• false: 如果值不是 Nil

Trait Implementations

impl Clone for RedisValue

fn clone(&self) -> RedisValue

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RedisValue

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

Formats the value using the given formatter.

impl From<&str> for RedisValue

fn from(s: &str) -> Self

Converts to this type from the input type.

impl From<String> for RedisValue

fn from(s: String) -> Self

Converts to this type from the input type.

impl From<Value> for RedisValue

fn from(value: Value) -> Self

Converts to this type from the input type.

impl From<Vec<u8>> for RedisValue

fn from(bytes: Vec<u8>) -> Self

Converts to this type from the input type.

impl From<bool> for RedisValue

fn from(b: bool) -> Self

Converts to this type from the input type.

impl From<f64> for RedisValue

fn from(f: f64) -> Self

Converts to this type from the input type.

impl From<i32> for RedisValue

fn from(i: i32) -> Self

Converts to this type from the input type.

impl From<i64> for RedisValue

fn from(i: i64) -> Self

Converts to this type from the input type.

impl PartialEq for RedisValue

fn eq(&self, other: &RedisValue) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for RedisValue