ae

README

Helpers for appengine APIs.

Notably, an appengine implementation of gcp/ds.Provider.

Documentation

Index

• Constants
• Variables
• func DeleteSingleton(ctx context.Context, name string) error
• func DeleteSingletonFromMemcache(c context.Context, name string) error
• func LoadAnySingleton(ctx context.Context, name string, obj interface{}) error
• func LoadFromMemcacheShards(ctx context.Context, name string, ptr interface{}) error
• func LoadFromMemcacheShardsTTL(ctx context.Context, name string, ptr interface{}) error
• func LoadShardedSingletonFromMemcache(c context.Context, name string) ([]byte, error)
• func LoadSingleton(c context.Context, name string) ([]byte, error)
• func LoadSingletonFromDatastore(c context.Context, name string) ([]byte, error)
• func LoadSingletonFromMemcache(c context.Context, name string) ([]byte, error)
• func SaveAnySingleton(ctx context.Context, name string, obj interface{}) error
• func SaveShardedSingletonToMemcache(c context.Context, name string, data []byte) error
• func SaveSingleton(c context.Context, name string, data []byte) error
• func SaveSingletonToDatastore(c context.Context, name string, data []byte) error
• func SaveSingletonToMemcache(c context.Context, name string, data []byte) error
• func SaveSingletonToMemcacheHandler(ctx context.Context, w http.ResponseWriter, r *http.Request)
• func SaveSingletonToMemcacheURL(name string, body []byte, url string) error
• func SaveToMemcacheShards(ctx context.Context, name string, ptr interface{}) error
• func SaveToMemcacheShardsTTL(ctx context.Context, name string, ptr interface{}, d time.Duration) error
• type Singleton

Constants

const Chunksize = 950000 // A single memcache item can't be bigger than 1000000 bytes

const MaxChunks = 32 // We only shard this much.

Variables

var ErrNoSuchEntityDS = errors.New("ae/datastore: no such entity")

Functions

func DeleteSingleton

func DeleteSingleton(ctx context.Context, name string) error

func DeleteSingletonFromMemcache

func DeleteSingletonFromMemcache(c context.Context, name string) error

func LoadAnySingleton

func LoadAnySingleton(ctx context.Context, name string, obj interface{}) error

func LoadFromMemcacheShards

func LoadFromMemcacheShards(ctx context.Context, name string, ptr interface{}) error

func LoadFromMemcacheShardsTTL

func LoadFromMemcacheShardsTTL(ctx context.Context, name string, ptr interface{}) error

func LoadShardedSingletonFromMemcache

func LoadShardedSingletonFromMemcache(c context.Context, name string) ([]byte, error)

func LoadSingleton

func LoadSingleton(c context.Context, name string) ([]byte, error)

func LoadSingletonFromDatastore

func LoadSingletonFromDatastore(c context.Context, name string) ([]byte, error)

func LoadSingletonFromMemcache

func LoadSingletonFromMemcache(c context.Context, name string) ([]byte, error)

func SaveAnySingleton

func SaveAnySingleton(ctx context.Context, name string, obj interface{}) error

func SaveShardedSingletonToMemcache

func SaveShardedSingletonToMemcache(c context.Context, name string, data []byte) error

func SaveSingleton

func SaveSingleton(c context.Context, name string, data []byte) error

func SaveSingletonToDatastore

func SaveSingletonToDatastore(c context.Context, name string, data []byte) error

func SaveSingletonToMemcache

func SaveSingletonToMemcache(c context.Context, name string, data []byte) error

func SaveSingletonToMemcacheHandler

func SaveSingletonToMemcacheHandler(ctx context.Context, w http.ResponseWriter, r *http.Request)

SaveSingletonToMemcacheHandler is a HTTP handler that expects an application/json request body that encodes a memcacheSingletonEntry struct. (The golang json libs take care of all the base64 encoding/decoding transparently). The entry will be written into memcache.

func SaveSingletonToMemcacheURL

func SaveSingletonToMemcacheURL(name string, body []byte, url string) error

SaveSingletonToMemcacheURL sends a HTTP request to the given URL, which should route to the SaveSingletonToMemcacheHandler routine above.

func SaveToMemcacheShards

func SaveToMemcacheShards(ctx context.Context, name string, ptr interface{}) error

func SaveToMemcacheShardsTTL

func SaveToMemcacheShardsTTL(ctx context.Context, name string, ptr interface{}, d time.Duration) error

Types

type Singleton

type Singleton struct {
	Value []byte `datastore:",noindex"`
}