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Cilantro is an implementation (in Java) of "Object Algebra", a solution to the Impedance Problem. It connects object-oriented programs to relational databases. In Cilantro, queries are first-class objects and can be combined to create other queries.
Mirage implements an complete 100% transparent Object Relational mapping for Java. It builds the database schema incrementally, to support incremental development and refactoring as it happens in Extreme Programming.
XORM is an extensible object-relational mapping layer for Java
applications. It provides interface-based persistence to RDBMSs using the Java Data Objects (JDO) API while allowing developers to focus on the object model, not the physical layer.
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JETHRO (Java Engine for Translating and Hiding Relational to Object) is a "bottom-up" persistence framework, designed in an "API+Provider" fashion. Based on the Data Transfer Object (DTO) concept, it offers a Transparent Query engine.
Jaxor provides a java code generation engine for creating an object to relational mapping layer based upon XML metadata. SQL is generated as well as an extensible mapping layer.
RDBS2J is a GUI based mapping tool from relational database schema to persistent java classes which use JDO as persistence mechanism. The mapping can be modified by the GUI. The current version is designed to create code for Apache-OJB.
The ObjectBase Project could have been called Object Oriented DataseBase but we found at least two contradictions in that. This is not object oriented, it is just objects. This is not a database because we do not persist data, we persist objects.
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A simple object persistence mechanism for Java that can be added to an application in minutes. All data is kept in memory and stored as property files in a Maildir, allowing external viewing and modification of data.
The OJB Console is an extensible struts web application featuring transparent browse, search, create, update and delete functionality for the objects configured within the Object Relational Bridge (OJB) persistence framework.
Jing, a Java based DAO (Data Access Object) framework, allows for a
clean seperation between the DAO layer and the Persistance layer.
Projects can swap persistance frameworks or use multiple frameworks
without \"rocking the boat.\"
The Xineo project maintains several Java packages targeted to XML management. Available packages include : OAX (Object-oriented API for XML), XIL (XML Import Language), XMA (XML Mail Archiver).
JSO (Java Storable Objects) is an object-relational mapping tool based on runtime class reflection (no XML mapping definitions). It acts as a persistence layer, storing Java objects in a relational database, and supports many features.
This project contains an component to building JDO applications with Castor (http://castor.exolab.org/). It's allow easy using of mappings with building OQL queries.
Oolong is an object to relational mapper. It features a layered approach for extensibility. It emphasizes on pluggable mapping functionalities and enterprise connectivity. Custom mappings are supported in addition to different relationship mapping: one-t
A robust, easy to use Object-Relational Persistence Layer Framework for java projects. The purpose of which is to remove as much hand coded JDBC SQL for all the basic CRUD functions. This includes automatic handling of polymorphic objects, associations, t
"Versionable Store - OX" is a single-user Object Database written in Java. The basic API is simple and elegant to use on new projects or incorporate in existing projects for persistence support.
SQLBlox, SQL building blocks for Java applications. A typical use would be to provide for the underlying storage of a business object. Later the instance information can be serialized into SQL.
An implentation of Microsoft ActiveX Data Objects in Java, allowing disconnected recordset support, better NULL support and business object superclasses for rapid enterprise solution development.
This project aims at providing simple Java API to the querying/Modification/Object[Un]Marshalling of XML documents and its fragments regardless of the documents source.