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ChaiDB is an embedded data storage developed at the kernel level by using B-Tree implementation. It is a natural database choice for name/value applications such as JSON. JSON-Cache utilizes ChaiDB to provide persistence and cache solution for JSON data.
A small database stress tool written in Java. Emulates a given number of concurrent users querying the engine. Reports timing information for each test. Currently supports MySQL engine only.
Salto Persistence is a object/relational persistence framework for a J2EE environment. It comes with Salto-db generator which uses a templates mechanism to generate Salto-db Dataobjects from any existing JDBC-supported Database.
A framework for building, deploying and managing well-described REST-ful Web services, including REST-ful Web Services realizations for RSS, XML Topic Maps, Structured Arguments, and Workflow.
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OpenRolap: an implementation of OLAP in a relational database. Conceptually simple, the current version is in MySQL, with a Java API. The API aims to avoid complex MDX-type language, instead to use a simple "filter path" structure.
tinySQL is a SQL engine written in Java. It uses dBase format files compatible with MS Excel. tinySQL comes with a command line interpreter which you can use to create, drop, or update tables. A GUI for tinySQL can be found at www.sqlmagic.com
Mayfly is an in-memory SQL implementation for unit testing. It is fast on small data sets and you can create or destroy a database as easily any other Java object.
OpenSiteSearch is the new Open Source version of OCLC's original java-based web application for building Z39.50 portals (i.e. virtual union catalogues). This project is specifically aimed at the library community.
Relevant is an Object-Relational data-mapper. The main goal is performance. We're going to write a code-generator to generate the native java-classes to prevent reflection. Database-independency is a MUST.
Java Object and Relation Persistence framework. No mapping configuration needed! Automatic mapping of object relations, inheritance, arrays ++. Also includes a DB-version migration framework. Powerful, yet easy to use.
A dictionary like others perhaps. Its primary scope, thought, is to assist the specialized translators to collect word and expression translations in a dictionary, and to query, from the same interface the servers for other formats.
XSpace is a globally accessible repository for hierarchically-keyed information. It provides persistence for trees with an elegant tree-navigation API. XSpace also publishes real-time events whenever a persisted tree is updated.
JKBS it's a production system: a knowledge based system written in java. You can store if-then rules (called production) and fact in its production memory and let the inference engine to produce some result.
A super-small embedded sub-relational database engine. No SQL just Java classes and methods; easy API. Great for business applications and environments with low resources. Check the Project-->Website & News below. Email me for help or post in the forum.
NeoDatis Knowledger is a database that stores knowledge. It supports the human way to acquire knowledge in that it enables dynamic and incremental data model modification and data acquisition.
SCAM is a development environment for building metadata stores for RDF and the Semantic Web. SCAM is built upon international technology standards and metadata standards. Such as RDF, Dublin Core, IEEE/LOM and IMS.
MushroomDB is a pure Java multiplatform Relational Database Management System.
There are two main goals: to make a fully SQL-92 compliant engine and to provide extensibility mechanisms. A JDBC Driver and a GUI client is supplied with the engine.
DB Guardian is a Java-based database diagnostic performance tool for Oracle 10g. This tool helps the database administrator (DBA) to monitor and detect problems related to performance in your environments.
A set of software components used to investigate and implement searching of music and audio. This covers content-based retrieval and meta-data based solutions, segmentation and content selection (summarisation) of audio and music (MIDI, MP3 and WAV).