stash_sqlite 3.0.0-dev.1 stash_sqlite: ^3.0.0-dev.1 copied to clipboard
storage extension for the stash caching API. Provides support to store caches in a sqlite database in binary format using the msgpack json format
import 'dart:io';
import 'package:stash_sqlite/stash_sqlite.dart';
class Task {
final int id;
final String title;
final bool completed;
Task({required this.id, required this.title, this.completed = false});
/// Creates a [Task] from json map
factory Task.fromJson(Map<String, dynamic> json) => Task(
id: json['id'] as int,
title: json['title'] as String,
completed: json['completed'] as bool);
/// Creates a json map from a [Task]
Map<String, dynamic> toJson() =>
<String, dynamic>{'id': id, 'title': title, 'completed': completed};
@override
String toString() {
return 'Task $id: "$title" is ${completed ? "completed" : "not completed"}';
}
}
void main() async {
// Temporary directory
final dirPath = Directory.systemTemp;
// Temporary database file
final file = File('${dirPath.path}/stash_sqlite.db');
// Creates cache with a sqlite file based storage backend with the capacity of 10 entries
final cache = newSqliteFileCache(file,
maxEntries: 10, fromEncodable: (json) => Task.fromJson(json));
// Adds a task with key 'task1' to the cache
await cache.put(
'task1', Task(id: 1, title: 'Run stash_sqlite example', completed: true));
// Retrieves the value from the cache
final value = await cache.get('task1');
print(value);
}