-----
    Hashtable persistent on filesystem.

BananaDB

    BananaDB is a persistent Hashtable for Java that resides on the filesystem.


* Features

    * Thread safe, even when read/write accessed from multiple JVMs

    * Optionally transactional with multiple isolation level strategies

    * Relative speedy, depending on persistencey hardware

        * Normally ~3ms to put and ~0.1ms to get() when file cache is available

        * Depends on IO seek, i.e. SSD can make even a huge DB fair to use


* Features planned for the future include

    * Annotational API

        * Automatic serialization of key and value classes

        * Secondary indices

    * Top level API to handle multiple hashtable instances

        * Transactions spanning multiple hashtables

        * Et c


* Releases

    There are no official releases! You'll need to check it out from the Apache SVN, compile and install it by your self.

+-------------------------------+

limax:bananadb kalle$ svn co http://svn.apache.org/repos/asf/labs/bananadb/trunk/
A    trunk/FILES.txt
A    trunk/LICENSE.txt
..

limax:bananadb kalle$ cd trunk
limax:trunk kalle$ mvn install

+-------------------------------+


Example use

+-------------------------------+

Hashtable<Integer, String> hashtable = new Hashtable<Integer, String>(
    new ConfigurationImpl<Integer, String>(new File("./bananadb"), new IntegerHandler(), new StringValueHandler()));

hashtable.getTxn().begin();
hashtable.put(0, "Hello, world");
hashtable.getTxn().commit();

hashtable.getTxn().begin();
System.out.println(hashtable.getTxn().get(0));
hashtable.getTxn().abort();

+-------------------------------+