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transforms every database into a object key value store, written in node.js
JavaScript
branch: master
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.gitignore Added leveldb store to gitignore
CONTRIBUTING.md Contributing guidelines
CacheAndBufferLayer.js Buffer should be per instance
CloneAndAtomicLayer.js Code cleanup and minor bugfixes.
LICENSE first commit
README.md elasticsearch implementation for ueberDB
benchmark.js move default test settings into seperate file
caseSensitiveTest.js Fixed the case sensitive problem of mysql
cassandra_db.js Brought in the new Cassandra driver
couch_db.js bulk fetch of the revisions
defaultTestSettings.js elasticsearch implementation for ueberDB
dirty_db.js added call dirty db close function - dirty 0.9.9
elasticsearch_db.js elasticsearch implementation for ueberDB
findKeysTest.js adjusted findKeysTest to work with results in different order
leveldb_db.js Fix LevelDB indentation
lmdb_db.js Adds lmdb support
mongodb_db.js Select only key field in mongo.find function (for findKeys)
mysql_db.js remove console log
package.json removing extra comma in package.json
postgres_db.js Merge pull request #28 from Pita/master
randomAccessTest.js move default test settings into seperate file
redis_db.js Update redis_db.js
sqlite_db.js Implemented findKeys for SQLite, updated README.md

README.md

About

Abstract your databases, make datababies. ueberDB turns every database into a simple key value store by providing a layer of abstraction between your software and your database. ueberDB uses a smart cache and buffer algorithm to make databases faster. Reads are cached and writes are done in a bulk. The bulk writing reduces the overhead of a database transaction. The syntax is simple and clean and getting started is easy.

Database Support

  • MySQL
  • SQLite
  • Postgres
  • Level
  • Dirty
  • Mongo
  • Redis
  • Couch
  • Elasticsearch

Install

npm install ueberDB

Example

var ueberDB = require("ueberDB");

//mysql
var db = new ueberDB.database("mysql", {"user":"root", host: "localhost", "password":"", database: "store"});
//sqlite in-memory
//var db = new ueberDB.database("sqlite");
//sqlite in file
//var db = new ueberDB.database("sqlite", {filename:"var/sqlite3.db"});
//sqlite in file with a write interval of a half second
//var db = new ueberDB.database("sqlite", {filename:"var/sqlite3.db"}, {writeInterval: 500});

//initialize the database
db.init(function (err)
{
  if(err)
  {
    console.error(err);
    process.exit(1);
  }

  //set a object as a value
  //can be done without a callback, cause the value is immediately in the buffer
  db.set("valueA", {a:1,b:2});

  //get the object
  db.get("valueA", function(err, value){
    console.log(value);

    db.close(function(){
      process.exit(0);
    });
  });
});

How to add support for another database

Look at sqlite_db.js and mysql_db.js, your module have to provide the same functions. Call it DATABASENAME_db.js and reimplement the functions for your database. If you think it works, test it with node benchmark.js DATABASENAME. Benchmark.js is benchmark and test at the same time. It tries to set 100000 values. You can pipe stderr to a file and will create a csv with benchmark results.

Limitations

Only mysql, dirty and mongodb currently support findKeys feature. The following do not yet support the function:

  • couch
  • leveldb
  • redis (Only keys of the format *:*:*)
  • cassandra (Only keys of the format *:*:*)
  • elasticsearch (Only keys of the format *:*:*)

For details on how it works please refer to the wiki: https://github.com/Pita/ueberDB/wiki/findKeys-functionality

License

Apache License v2

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