# ecto_struct_cachex [](https://hex.pm/packages/ecto_struct_cachex) [](https://hexdocs.pm/ecto_struct_cachex/)
in-memory cache for ecto struct.
## Installation
Add ecto_struct_cachex to your list of dependencies in `mix.exs`:
```elixir
def deps do
[{:ecto_struct_cachex, "~> 0.2.0"}]
end
```
run `mix deps.get`.
## Sample
This Sample Project is the basis for ecto_struct_cachex, help you use well.
Download via [Gitee](https://gitee.com/lizhaochao/ecto_struct_cachex_sample) or [Github](https://github.com/lizhaochao/ecto_struct_cachex_sample).
## Problems Solving
- **Support getting struct by keyword from cache.**
```elixir
# define Cache by using ESC (ecto_struct_cachex)
defmodule StructCache do
use ESC
end
# use StructCache to inject cache_struct/1, cache_put/1, cache_evict/1 decorators.
defmodule API do
use StructCache
@decorate cache_struct(User)
def get_user(conds) do
...
{:ok, user}
end
end
# pass keyword to get object.
API.get_user([name: "name", addr: "addr"])
```
- **Delete dirty structs when its deep nested struct updated/deleted.**
```elixir
%{
User => [
%User{
id: 1,
user_name: "u_name",
role: %Role{id: 2, role_name: "r_name2"}
},
],
Role => [
%Role{id: 1, role_name: "r_name1"},
%Role{id: 2, role_name: "r_name2"}
]
}
```
For above sample data, **role** `id=2` struct deleted/updated, **user** `id=1` struct will be deleted too.
## Cache based on LRU algorithm.
### Benchmark
```bash
mix bench
benchmark name iterations average time
only put 100000000 0.09 µs/op
get - empty cond 10000000 0.15 µs/op
put - should remove 10000000 0.23 µs/op
get - by id - obj at top 10000000 0.27 µs/op
get - by conds - obj at top 10000000 0.58 µs/op
get - by conds - obj at mid 1000000 1.71 µs/op
get - by conds - obj at bottom 1000000 2.21 µs/op
```
## Contributing
Contributions to ecto_struct_cachex are very welcome!
Bug reports, documentation, spelling corrections... all of those (and probably more) are much appreciated contributions!
