func main() {
d := db.NewDatabase()
d.Add("user:0", "likes:a")
d.Add("user:0", "likes:b")
d.Add("user:0", "likes:c")
d.Add("user:1", "likes:a")
d.Add("user:1", "likes:b")
d.Add("user:1", "likes:d")
d.Add("user:2", "likes:a")
d.Add("user:2", "likes:d")
d.Add("user:3", "likes:d")
// q1 = a & b
q1 := db.And(d.Query("likes:a"), d.Query("likes:b"))
// q2 = not(a) & d
q2 := db.And(db.Not(d.Query("likes:a")), d.Query("likes:d"))
// query = q1 | q2
query := db.Or(q1, q2)
for key := range d.Keys(query) {
fmt.Println(key)
}
}
func Start(addr string) {
fmt.Printf("Starting server at %s...\n", addr)
ctx := &Context{db.NewDatabase(), make(chan updatable)}
ctx.startUpdateLoop()
http.Handle("/add", stayHandler{ctx, handleAdd})
http.Handle("/remove", stayHandler{ctx, handleRemove})
http.Handle("/query", stayHandler{ctx, handleQuery})
http.Handle("/count", stayHandler{ctx, handleCount})
http.Handle("/stats", stayHandler{ctx, handleStats})
http.Handle("/save", stayHandler{ctx, handleSave})
http.Handle("/load", stayHandler{ctx, handleLoad})
http.ListenAndServe(addr, nil)
}