x

Documentation

Index

• Variables
• func CreateKey(prefix bool, sep string, visual string, args ...interface{}) string
• func CreateKeyStruct(strct interface{}) string
• func Hash(key string) string
• type Cachex
  • func New(storage cache.Cache, querier Querier, defaultTTL ...int64) (c *Cachex)
  • func (c *Cachex) Del(ctx context.Context, keys ...string) error
  • func (c *Cachex) Get(ctx context.Context, key string, value interface{}, opts ...GetOption) error
  • func (c *Cachex) Set(ctx context.Context, key string, value interface{}, expire int64) error
  • func (c *Cachex) UseStaleWhenError(use bool) *Cachex
• type GetOption
  • func DisableCacheUsage(disableCacheUsage bool) GetOption
  • func Query(querier Querier) GetOption
  • func TTL(ttl int64) GetOption
  • func UseFreshData(useFreshData bool) GetOption
• type Options
  • func (o *Options) SetDisableCacheUsage(disableCacheUsage bool)
  • func (o *Options) SetQuerier(querier Querier)
  • func (o *Options) SetTTL(ttl int64)
  • func (o *Options) SetUseFreshData(useFreshData bool)
• type Querier
• type QueryFunc
  • func (q QueryFunc) Query() error

Variables

var DefaultTTL int64 = 86400 * 10 * 366

Functions

func CreateKey

func CreateKey(prefix bool, sep string, visual string, args ...interface{}) string

CreateKey will generate a key based on the input arguments. When prefix is true, the caller's name will be used to prefix the key in an attempt to make it unique. The args can also be separated using sep. visual performs no functionality. It is used at code level to visually see how the key is structured.

func CreateKeyStruct

func CreateKeyStruct(strct interface{}) string

CreateKeyStruct generates a key by converting a struct into a JSON object.

func Hash

func Hash(key string) string

Hash returns a crc32 hashed version of key.

Types

type Cachex

type Cachex struct {
	// contains filtered or unexported fields
}

Cachex 缓存处理类

func New

func New(storage cache.Cache, querier Querier, defaultTTL ...int64) (c *Cachex)

New 新建缓存处理对象

func (*Cachex) Del

func (c *Cachex) Del(ctx context.Context, keys ...string) error

Del 删除

func (*Cachex) Get

func (c *Cachex) Get(ctx context.Context, key string, value interface{}, opts ...GetOption) error

Get 获取

func (*Cachex) Set

func (c *Cachex) Set(ctx context.Context, key string, value interface{}, expire int64) error

Set 更新

func (*Cachex) UseStaleWhenError

func (c *Cachex) UseStaleWhenError(use bool) *Cachex

UseStaleWhenError 设置当查询发生错误时，使用过期的缓存数据。该特性需要Storage支持（Get返回过期的缓存数据和Expired错误实现）。默认关闭。

type GetOption

type GetOption func(*Options)

GetOption Get方法的可选参数项结构，不需要直接调用。

func DisableCacheUsage

func DisableCacheUsage(disableCacheUsage bool) GetOption

func Query

func Query(querier Querier) GetOption

Query 为Get操作定制查询过程

func TTL

func TTL(ttl int64) GetOption

TTL 为Get操作定制TTL

func UseFreshData

func UseFreshData(useFreshData bool) GetOption

type Options

type Options struct {
	// contains filtered or unexported fields
}

Options Get方法的可选参数项

func (*Options) SetDisableCacheUsage

func (o *Options) SetDisableCacheUsage(disableCacheUsage bool)

func (*Options) SetQuerier

func (o *Options) SetQuerier(querier Querier)

func (*Options) SetTTL

func (o *Options) SetTTL(ttl int64)

func (*Options) SetUseFreshData

func (o *Options) SetUseFreshData(useFreshData bool)

type Querier

type Querier interface {
	Query() error
}

Querier 查询接口

type QueryFunc

type QueryFunc func() error

QueryFunc 查询过程签名

func (QueryFunc) Query

func (q QueryFunc) Query() error

Query 查询过程实现Querier接口