cache

Documentation

Index

• Constants
• Variables
• type CacheStore
• type InMemoryStore
  • func NewInMemoryStore(defaultExpiration time.Duration) *InMemoryStore
  • func (c *InMemoryStore) Add(key string, value interface{}, expires time.Duration) error
  • func (c *InMemoryStore) Decrement(key string, n uint64) (uint64, error)
  • func (c *InMemoryStore) Delete(key string) error
  • func (c *InMemoryStore) Flush() error
  • func (c *InMemoryStore) Get(key string, value interface{}) error
  • func (c *InMemoryStore) Increment(key string, n uint64) (uint64, error)
  • func (c *InMemoryStore) Replace(key string, value interface{}, expires time.Duration) error
  • func (c *InMemoryStore) Set(key string, value interface{}, expires time.Duration) error
• type MemcachedBinaryStore
  • func NewMemcachedBinaryStore(hostList, username, password string, defaultExpiration time.Duration) *MemcachedBinaryStore
  • func NewMemcachedBinaryStoreWithConfig(hostList, username, password string, defaultExpiration time.Duration, ...) *MemcachedBinaryStore
  • func (s *MemcachedBinaryStore) Add(key string, value interface{}, expires time.Duration) error
  • func (s *MemcachedBinaryStore) Decrement(key string, delta uint64) (uint64, error)
  • func (s *MemcachedBinaryStore) Delete(key string) error
  • func (s *MemcachedBinaryStore) Flush() error
  • func (s *MemcachedBinaryStore) Get(key string, value interface{}) error
  • func (s *MemcachedBinaryStore) Increment(key string, delta uint64) (uint64, error)
  • func (s *MemcachedBinaryStore) Replace(key string, value interface{}, expires time.Duration) error
  • func (s *MemcachedBinaryStore) Set(key string, value interface{}, expires time.Duration) error
• type MemcachedStore
  • func NewMemcachedStore(hostList []string, defaultExpiration time.Duration) *MemcachedStore
  • func (c *MemcachedStore) Add(key string, value interface{}, expires time.Duration) error
  • func (c *MemcachedStore) Decrement(key string, delta uint64) (uint64, error)
  • func (c *MemcachedStore) Delete(key string) error
  • func (c *MemcachedStore) Flush() error
  • func (c *MemcachedStore) Get(key string, value interface{}) error
  • func (c *MemcachedStore) Increment(key string, delta uint64) (uint64, error)
  • func (c *MemcachedStore) Replace(key string, value interface{}, expires time.Duration) error
  • func (c *MemcachedStore) Set(key string, value interface{}, expires time.Duration) error
• type RedisStore
  • func NewRedisCache(redis redis.Cmdable, defaultExpiration time.Duration) *RedisStore
  • func (c *RedisStore) Add(key string, value interface{}, expires time.Duration) error
  • func (c *RedisStore) Decrement(key string, delta uint64) (newValue uint64, err error)
  • func (c *RedisStore) Delete(key string) error
  • func (c *RedisStore) Flush() error
  • func (c *RedisStore) Get(key string, ptrValue interface{}) error
  • func (c *RedisStore) Increment(key string, delta uint64) (uint64, error)
  • func (c *RedisStore) Replace(key string, value interface{}, expires time.Duration) error
  • func (c *RedisStore) Set(key string, value interface{}, expires time.Duration) error

Constants

const (
	DEFAULT = time.Duration(0)
	FOREVER = time.Duration(-1)
)

Variables

var (
	PageCachePrefix = "persistence.cache"
	ErrCacheMiss    = errors.New("cache: key not found")
	ErrNotStored    = errors.New("cache: not stored")
	ErrNotSupport   = errors.New("cache: not support")
)

Types

type CacheStore

type CacheStore interface {
	// Get retrieves an item from the cache. Returns the item or nil, and a bool indicating
	// whether the key was found.
	Get(key string, value interface{}) error

	// Set sets an item to the cache, replacing any existing item.
	Set(key string, value interface{}, expire time.Duration) error

	// Add adds an item to the cache only if an item doesn't already exist for the given
	// key, or if the existing item has expired. Returns an error otherwise.
	Add(key string, value interface{}, expire time.Duration) error

	// Replace sets a new value for the cache key only if it already exists. Returns an
	// error if it does not.
	Replace(key string, data interface{}, expire time.Duration) error

	// Delete removes an item from the cache. Does nothing if the key is not in the cache.
	Delete(key string) error

	// Increment increments a real number, and returns error if the value is not real
	Increment(key string, data uint64) (uint64, error)

	// Decrement decrements a real number, and returns error if the value is not real
	Decrement(key string, data uint64) (uint64, error)

	// Flush seletes all items from the cache.
	Flush() error
}

CacheStore is the interface of a cache backend

type InMemoryStore

type InMemoryStore struct {
	cache.Cache
}

InMemoryStore represents the cache with memory persistence

func NewInMemoryStore

func NewInMemoryStore(defaultExpiration time.Duration) *InMemoryStore

NewInMemoryStore returns a InMemoryStore

func (*InMemoryStore) Add

func (c *InMemoryStore) Add(key string, value interface{}, expires time.Duration) error

Add (see CacheStore interface)

func (*InMemoryStore) Decrement

func (c *InMemoryStore) Decrement(key string, n uint64) (uint64, error)

Decrement (see CacheStore interface)

func (*InMemoryStore) Delete

func (c *InMemoryStore) Delete(key string) error

Delete (see CacheStore interface)

func (*InMemoryStore) Flush

func (c *InMemoryStore) Flush() error

Flush (see CacheStore interface)

func (*InMemoryStore) Get

func (c *InMemoryStore) Get(key string, value interface{}) error

Get (see CacheStore interface)

func (*InMemoryStore) Increment

func (c *InMemoryStore) Increment(key string, n uint64) (uint64, error)

Increment (see CacheStore interface)

func (*InMemoryStore) Replace

func (c *InMemoryStore) Replace(key string, value interface{}, expires time.Duration) error

Replace (see CacheStore interface)

func (*InMemoryStore) Set

func (c *InMemoryStore) Set(key string, value interface{}, expires time.Duration) error

Set (see CacheStore interface)

type MemcachedBinaryStore

type MemcachedBinaryStore struct {
	*mc.Client
	// contains filtered or unexported fields
}

MemcachedBinaryStore represents the cache with memcached persistence using the binary protocol

func NewMemcachedBinaryStore

func NewMemcachedBinaryStore(hostList, username, password string, defaultExpiration time.Duration) *MemcachedBinaryStore

NewMemcachedBinaryStore returns a MemcachedBinaryStore

func NewMemcachedBinaryStoreWithConfig

func NewMemcachedBinaryStoreWithConfig(hostList, username, password string, defaultExpiration time.Duration, config *mc.Config) *MemcachedBinaryStore

NewMemcachedBinaryStoreWithConfig returns a MemcachedBinaryStore using the provided configuration

func (*MemcachedBinaryStore) Add

func (s *MemcachedBinaryStore) Add(key string, value interface{}, expires time.Duration) error

Add (see CacheStore interface)

func (*MemcachedBinaryStore) Decrement

func (s *MemcachedBinaryStore) Decrement(key string, delta uint64) (uint64, error)

Decrement (see CacheStore interface)

func (*MemcachedBinaryStore) Delete

func (s *MemcachedBinaryStore) Delete(key string) error

Delete (see CacheStore interface)

func (*MemcachedBinaryStore) Flush

func (s *MemcachedBinaryStore) Flush() error

Flush (see CacheStore interface)

func (*MemcachedBinaryStore) Get

func (s *MemcachedBinaryStore) Get(key string, value interface{}) error

Get (see CacheStore interface)

func (*MemcachedBinaryStore) Increment

func (s *MemcachedBinaryStore) Increment(key string, delta uint64) (uint64, error)

Increment (see CacheStore interface)

func (*MemcachedBinaryStore) Replace

func (s *MemcachedBinaryStore) Replace(key string, value interface{}, expires time.Duration) error

Replace (see CacheStore interface)

func (*MemcachedBinaryStore) Set

func (s *MemcachedBinaryStore) Set(key string, value interface{}, expires time.Duration) error

Set (see CacheStore interface)

type MemcachedStore

type MemcachedStore struct {
	*memcache.Client
	// contains filtered or unexported fields
}

MemcachedStore represents the cache with memcached persistence

func NewMemcachedStore

func NewMemcachedStore(hostList []string, defaultExpiration time.Duration) *MemcachedStore

NewMemcachedStore returns a MemcachedStore

func (*MemcachedStore) Add

func (c *MemcachedStore) Add(key string, value interface{}, expires time.Duration) error

Add (see CacheStore interface)

func (*MemcachedStore) Decrement

func (c *MemcachedStore) Decrement(key string, delta uint64) (uint64, error)

Decrement (see CacheStore interface)

func (*MemcachedStore) Delete

func (c *MemcachedStore) Delete(key string) error

Delete (see CacheStore interface)

func (*MemcachedStore) Flush

func (c *MemcachedStore) Flush() error

Flush (see CacheStore interface)

func (*MemcachedStore) Get

func (c *MemcachedStore) Get(key string, value interface{}) error

Get (see CacheStore interface)

func (*MemcachedStore) Increment

func (c *MemcachedStore) Increment(key string, delta uint64) (uint64, error)

Increment (see CacheStore interface)

func (*MemcachedStore) Replace

func (c *MemcachedStore) Replace(key string, value interface{}, expires time.Duration) error

Replace (see CacheStore interface)

func (*MemcachedStore) Set

func (c *MemcachedStore) Set(key string, value interface{}, expires time.Duration) error

Set (see CacheStore interface)

type RedisStore

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

RedisStore represents the cache with redis persistence

func NewRedisCache

func NewRedisCache(redis redis.Cmdable, defaultExpiration time.Duration) *RedisStore

NewRedisCache returns a RedisStore until redigo supports sharding/clustering, only one host will be in hostList

func (*RedisStore) Add

func (c *RedisStore) Add(key string, value interface{}, expires time.Duration) error

Add (see CacheStore interface)

func (*RedisStore) Decrement

func (c *RedisStore) Decrement(key string, delta uint64) (newValue uint64, err error)

Decrement (see CacheStore interface)

func (*RedisStore) Delete

func (c *RedisStore) Delete(key string) error

Delete (see CacheStore interface)

func (*RedisStore) Flush

func (c *RedisStore) Flush() error

Flush (see CacheStore interface)

func (*RedisStore) Get

func (c *RedisStore) Get(key string, ptrValue interface{}) error

Get (see CacheStore interface)

func (*RedisStore) Increment

func (c *RedisStore) Increment(key string, delta uint64) (uint64, error)

Increment (see CacheStore interface)

func (*RedisStore) Replace

func (c *RedisStore) Replace(key string, value interface{}, expires time.Duration) error

Replace (see CacheStore interface)

func (*RedisStore) Set

func (c *RedisStore) Set(key string, value interface{}, expires time.Duration) error

Set (see CacheStore interface)