tarek360/dcache

Dart cache package

Dcache

Dcache is a simple library to implement application caching in dart inspired by gcache

Feature

• Supports expirable Cache, LFU, LRU.
• Support eviction
• Automatically load cache if it doesn't exists. (Optional)
• Async loading of expirate value
• Callback for evicted items to perform cleanup (Optional)

Example

Simple use case

import 'package:dcache/dcache.dart';

void main() {
  Cache c = new SimpleCache(storage: new InMemoryStorage(20));

    c.set("key", 42);
    print(c.get("key")); // 42
    print(c.containsKey("unknown_key")); // false
    print(c.get("unknown_key")); // nil
}

Evict items

import 'package:dcache/dcache.dart';

void main() {
  Cache c = new SimpleCache(storage: new InMemoryStorage(20), onEvict: (key, value) {value.dispose();});

    c.set("key", 42);
    print(c.get("key")); // 42
    print(c.containsKey("unknown_key")); // false
    print(c.get("unknown_key")); // nil
}

Loading function

import 'package:dcache/dcache.dart';

void main() {
  Cache c = new SimpleCache<int, int>(storage: new InMemoryStorage(20))
    ..loader = (key, oldValue) => key*10
  ;

    print(c.get(4)); // 40
    print(c.get(5)); // 50
    print(c.containsKey(6)); // false
}

Author

Kevin PLATEL

• mail : [email protected]
• github : http://github.com/platelk
• twitter : https://twitter.com/kevinplatel