Our flagship Object-Relational Mapping (OR-Mapping) products, J-Database eXxchange
(JDX) and .NET Jet Database eXchange
very efficient solution to the common need for application
programmers - transactional persistence(storage) of business
objects in relational databases. Applications come and go,
but the information about business objects needs to be recorded
on a permanent storage medium so that it is available the
next time a continuing or concurrent or a newly started application
needs it. Examples of business objects are: quotation, purchase
order, customer info, invoice, product info, pricing info,
sales transaction, patient record etc.
Both JDX and NJDX provide natural object-oriented
interfaces for storing and retrieving objects using relational
databases. In most cases, JDX and NJDX will save about 30-70% of the
development cost for typical new applications by automating
the tedious, time-consuming, and error-prone task of writing low-level data integration code. Application developers can focus their efforts
on business logic, rather than being overwhelmed by writing
and maintaining endless lines of complicated JDBC/ADO.NET/SQL code for object persistence.
JDX and NJDX provide support for complex object-modeling
including class hierarchies. They allow integration with legacy
data to leverage existing investment.
JDX and NJDX don't modify your application source
files - all object relational mapping happens in a separate
layer. Consequently your application becomes data independent
because the same application can work against different backend
databases without any modifications! In fact, the object-relational
mapping specification may be shared between independent applications.
This provides a welcome relief from the proliferation of the
complex object-relational mapping code.
is written in 100% pure Java, making it portable to
every Java-enabled platform.
NJDX has been tightly integrated with Visual Studio .NET and can be used with any
CLR-based language including C#, VB.NET, and J#.
JDX and NJDX software are protected by US Patent 6,163,776
(System and method for exchanging data and commands between an object oriented system and relational system).
detailed information about JDX and OR-Mapping, please see
the JDX White
detailed information about NJDX OR-Mapper, please see