db4o is an object database for Java and all .NET environments. Its features include ACID transactions, automatic class schema recognition, query-by-example, a S.O.D.A. object querying API, native queries, LINQ support on .NET, callback methods, memory files, cascade-on-delete, multi-threaded access, and Java Webstart and servlet support.
Kodo JDO allows you to write database calls using Java statements instead of SQL statements, by supporting the Java Data Objects standard for transparent persistence. It is the most complete implementation of the JDO specification for relational data stores, and comes with tools for producing a schema from an object model, producing class files from an existing schema, and a performance pack (distributed caching and statement batching) that improves performance by 15 - 30 times. It supports most relational databases, application servers, and IDEs, and reduces the total coding effort by 20-40%.
Daffodil DB is a SQL-99 specification compliant, lightweight, Java-based relational database engine (RDBMS). It supports almost all constructs of SQL 99 (including triggers, views, constraints, UDT, stored procedures, etc.), supports distributed transactions (XA), provides a complete JDBC 3.0 driver (including support for optional features like save points, rowsets, UDT, XA, connection pooling, etc.), and can run in embedded or server mode. It can be included as a jar file in any Java application. Daffodil DB includes Daffodil DB Browser, a GUI-based database management tool that can be used to carry out all database operations such as creating a database, creating database objects, executing SQL statements, and manipulating data, browser database objects, etc.
MetaBoss is an integrated suite of tools for the design, development, and management of enterprise software systems through modelling. It utilises OMG's Model Driven Architecture concepts and is primarily oriented at enterprises using Java based tools and technologies. It encourages serious upfront analysis and design and aims to crystallise the value of it by automating a number of activities in the Software Development Life Cycle.
JayBird is JCA/JDBC driver suite for connecting to Firebird database servers. It was based on Borland's InterClient JDBC driver and uses the new JCA standard, which specifies an architecture in which an application server can cooperate with a driver so that the application server manages transactions, security, and resource pooling, and the driver supplies only the connection functionality. It also supports JDBC.
RSP is a retargetable language for writing portable Web applications. Web applications can be written once in RSP and then compiled, using the RSP compiler, to either ASP, JSP or PHP. The RSP language is syntactically similar to Java/JSP. It is strongly typed and pseudo object orientated. Its standard library contains functions and objects for common Web programming tasks and database abstraction.