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Small, simple and robust database in Java. If you need a persistent hash map, this is for you. It is basically as fast as it gets without caching, but doesn't offer any non-basic features like transactions or concurrent access.
S3 Mockup is an Amazon S3 emulator we develop for one of our projects. It can be easy embedded and used in your test framework or running as an independent service. Using this emulator you can easy setup development and QA environment.
Very small database, forked from TinySQL (but later rewritten from scratch) for the study of good software writing and Database theory knowledge. Currently works with flat (TXT) files. Will use DBF, XLS, CSV, memory tables and SQLite formats.
SimpleSQL is a 64-bit relational database, works as a standalone server-free db. component and transactional db. server, with standard SQL and JDBC, has portable single db. file, first db. available in Java and C++.
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Cayenne is an object-relational mapping framework written in Java. This Cayenne project at SourceForge is dedicated to hosting a legacy 1.2 release. For up to date releases please visit the new home at Apache. http://cayenne.apache.org
BIOLAP - OLAP for Genome and Biology Data Sets. This project extends Mondrian OLAP to biology data sets. We provide tools to slice and dice genomic sequence similarities and more easily explore large genomic data sets.
The Genomic Diversity and Phenotype Connection (GDPC) written in JAVA uses web services to make XML formatted data publicly available. The GDPC Browser (front-end GUI) can access these services, and other applications can use the API.
Full featured AJAX web based reporting system. Written in Java / JSP. Web based reports are dynamically generated from JDBC result sets. Connects to any JDBC compliant database, most drivers already included. The Apache Derby database is embeded.
This tool is a Java solution for managing structural changes to database schemas. It is based on Active Record migrations in Ruby on Rails. Check out documentation under construction on http://migrator.sourceforge.net
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.
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
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.
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.
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.
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.