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Project MOVED to Codehaus New location is http://esper.codehaus.org The Esper project aims to provide a general-purpose event processing facility in Java for complex event processing of real-time, high throughput data streams.
Datadog is an object persistence layer written in Java. Features include caching, transaction support, and much more using a rich and flexible API.
Datadog is a dead project, and has not been updated since 2002. Use Hibernate if you must use Java.
An implementation (parser/interpreter) of SPARQL, a query language for RDF data that is the current recommendation of the W3C. Allows easy cusomization of the language and plugs in to several popular RDF servers, like Sesame.
One$DB is Open Source version of Daffodil DB, a commercial Java Database. It is standards based, platform independent RDBMS that can be embedded into any application with minimal administration. One$DB is available in both Embedded and Network editions.
Ridiculously simple, Prevayler provides transparent ACID persistence and replication for plain old Java objects. It is literally several thousand times faster than using a relational database through JDBC.
DORM4J (Dynamic Object-Relational Mapping for Java) is an O/R Mapping library for java. It uses annotation in jdk1.5 and dynamic feature of java language to implement O/R mapping function without additional XML config files.
Driver based data access layer writen in Java. With it you can execute SQL queries between data stored in different format, servers, ... if there is a driver to access them.
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TransXTrail is the simplest database transaction controller API for Java.
JTA, Springs and Tyrex has too many issues/problems. This API is intended to be used in small applications. It also helps you to build a distributed transaction system.
Location Aware Mobile Assistant (LAMA) provides travelers a dynamic directory service. Users receive information on hotels, restaurants, and more, which are within their vicinity.
A application deployment environment may have multiple config file for different component, here is the tool to put all the config file into MYSQL database, and supply web interface for user to add/edit config option,
client lib convert to config file
Isis2Sql is a bunch of tools suitable to export your CDS/isis data to Sql and enjoy it through on of the two existing GUIs. Support conversion from mst (with or without xrf) and iso2709. Supports basic search and record editing.
XSDB XML is to DATA as HTML is to DOCUMENT. Publish and combine data as easily as HTML format and web browsers publish and view documents. Implementations in Python, javascript, java, C#/.NET.
Abacus Technologies Relational XQuery is an XQJ compatible XQuery processor that provides the ability to execute XQuery against both relational and XML data sources. Relational data can be transformed to any XML schema using XQuery's powerful features.
PostMO is a database system which monitors moving object(for instance, cars) in cities. It can be used to monitor city traffic. It bases on PostGIS which has a lot of functions to operate geo. objects(such as streets).
The BioDataServer is a database integration system. It implements a mediator-wrapper architecture and offers a SQL interface. The data integration is based on user defined intergrated schema and adapter that wrap any kind of data source.
A powerful cross-platform RDBMS with a pluggable carefully designed layered architecture. Actually is going multi-user and transactional. Check out vishnu.sourceforge.net to see what we are doing.
The Malete database core is the new basis of OpenIsis,
which has its roots in the UNESCO CDS/ISIS database.
Traditionaly used in libraries; now a general purpose highspeed database.
CSDerby is not CloudScape-Derby(for Java) but rather Derby forked/ported to CSharp. Specifically it is intended to be a native c# Embedded DB for the mono/net platform with the ADO.NET API instead of the JDBC API.
JucaDB is a relational database engine written in Java, supporting a subset of ANSI SQL-92. There is a JDBC driver with full suport. Client-server, referential-integrity and other features are implemented.
AJAX JDBC ResultSet in Javascript. Uses XMLHTTP to send xml server data to a web browser HTML form with no refresh, reload or submit (like Google Suggest). Data can be SQL, object relational map (like Hibernate), XML, other mapping (like SOAP)
SmartPool is a connection pooling Java component modeled on connection pooling features provided by an Application Server. SmartPool 1.5 focuses on Oracle RAC and global Transactions. It makes an attempt to solve critical issues like connection leaks, co
MySQLProxy acts like a MySQL server. After authentication with the client it will try to connect with different auth credentials to a different server and forward all traffic between client and server.