Embedded, persistent key-store

One often needs an embedded, persistent, key-store database solution if he/she is developing a software which relies on configurations made upon deployment. I was that one yesterday, so I looked up on the Internet for a solution. The solution was, with no convincing reason, Berkeley DB Java Edition, Sleepy Cat to be specific.

So here is the code chunk that did the trick! For a developer of modern languages like Python, it seemed like a lot of work for simple tasks. However, if you wrap it with your own code it can be helpful in many ways.

	public static void main(String[] args) throws DatabaseException,
	UnsupportedEncodingException {
	DatabaseEntry key = new DatabaseEntry();
	DatabaseEntry data = new DatabaseEntry();
	EnvironmentConfig config = new EnvironmentConfig();
	config.setAllowCreate(true);
	config.setTransactional(true);
	Environment environ = new Environment(new File("sleepydb"), config);
	DatabaseConfig databaseConfig = new DatabaseConfig();
	databaseConfig.setAllowCreate(true);
	Database db = environ.openDatabase(null, "company",
	databaseConfig);
	db.put(null, new DatabaseEntry("name".getBytes("utf-8")),
	new DatabaseEntry("Example company".getBytes("utf-8")));
	key.setData("name".getBytes("utf-8"));
	db.get(null, key, data, LockMode.DEFAULT);
	System.out.println(new String(data.getData(), "utf-8"));
	db.close();
	environ.close();
	}

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