Open Source Java Code Generators

J2J provides an intuitive way to convert Java to JSON and JSON to Java. Annotate any Java class then use JsonWriter to emit JSON from java or JsonReader to convert JSON to java objects. (source code and tutorial included) Version 2.0 in development.

DaoAnnotation is a Java projet to use simple dao CRUD with simple annotation.

JPA-XJC is a JAXB 2.1 XJC plugin for annotating schema derived classes with Java persistence annotations. It does not generate code depending on libraries other than JPA 1.0 and does not introduce non-standard customization elements.

MSS Code Factory turns XML Business Application Models into source code by applying a knowledge base of expansion rule cartridges. Each cartridge of rules in the knowledge base defines the code to be produced for a particular language, tool, or combination thereof. A cartridge can also integrate the rules from other cartridges, so you can create a virtual cartridge that will produce all the code to support a given software stack that the rules provide. MSS Code Factory takes over the duties of the junior programmer on large database integration projects, whose primary task is to follow the templates provided by the application architect and senior systems analysts. If you can provide a template, it is usually possible to define rules to produce code following the template. The rules themselves use a General Expansion Language (GEL) XML syntax.

QueryObjectFactory (QOF) is a lightweight runtime JDBC byte-code generator providing support for CRUD (create, retrieve, update and delete) operations and stored procedure calls. It uses Java annotations to define mappings and is fully OSGi ready.

A command line interface for creating and managing Apache iBatis mapping files.