Features

• Simplifies Integration of Java Objects with Relational Data -Application (or Applet Programmers need not write any SQL Statements.
• Declarative Mapping Specification based on a Simple Grammar.
• Can easily Handle Complex Object Structures - One-To-One, One-To-Many and
  Many-to-Many Relationship Models Supported.
• An Object may Contain other Object(s) By Value or By Reference.
• Object Modeling with Class-Hierarchy Supported.
• Support for Persistence by Reachability.
• No Requirement to Inherit from a Special Class.
• No Hassles of Pre-Processing or Post-Processing of your Code.
• Object Viewing Facility.
• Flexible Query Options - Deep, Shallow and anything in-between.
• Fast and Convenient Parameterized Named Queries.
• Powerful Object-Streaming Functionality.
• Support for aggregate operations return the aggregate value (COUNT, MIN, MAX, AVG, SUM) for the specified attribute of the qualifying objects.
• Enables easy data analysis.
• Handy Sequence Generators.
• Dynamic data routing.
• Support for partial loading of objects.
• Allow inline storage of the attributes of a contained object.
• Support for implicit attributes whose values are automatically initialized by JDX based on defined RELATIONSHIPs.
• Virtual attributes allow mapping of class attributes, which are not explicitly declared in the class definition. Enables flexible evolution of object/data modeling in some situations.
• Support for aggregated storage of inheritance objects in one table.
• Support for using application provided dynamic class loaders.
• Support for retrieving collection objects in a descending order.
• Support for specifying a JNDI data source name to get database connection.
• Optimistic locking for concurrency control provides a faster, more scalable locking alternative to database locking. Especially useful for long-running.
• transactions with minimal conflicting update operations.
• Allow specification for an external transaction manager.
• Utility components for pooling JX/JDX handles.
• Option to filter referenced objects for query, update and delete operations.
• Configurable logging destination.
• Support for Java2 Collections.
• Optionally generate default accessor (getter/setter) methods while reverse-engineering Java classes.
• Intuitive and Powerful APIs.
• Implemented on top of standard JDBC interface. Can work with Microsoft SQL Server, Oracle, Sybase, IBM DB2, MS Access, Cloudscape, Pointbase, MySQL, JDataStore and other relational databases and JDBC sources.
• An Application may Work with Multiple Databases Simultaneously.
• Multiple Invocations of JDX Methods may be made part of a Single Transaction.
• Efficient Caching of Metadata and Database Connections.
• Simple and Intuitive Object-Oriented Client Interface through Open Standard Technologies.
• Runs as a Class Library. Additionally, with one line of code change, you can also use the same mapping functionlity in a Separate High-Performance, Multithreaded Server (using JDXServer).
• Tool (JDXSchema) Provided for Relational Schema-Generation given Java Class Definitions.
• Tool (JDXSchema) Provided to Generate Java Class Definitions from Legacy Relational Data.
• Tool (JDXDemo) Provided to Verify Object-Relational Mapping specification using a Live Database.
• Modular Design, High-Performace and Scalable Implementation.
• All-Java Implementation makes it a Cross-Platform Solution.