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...There are several JDO impls undergoing development including OJB, XORM, TJDO, etc. Give them a try!
Sparrow is a high performance transparent persistence service (aka. Object Database) implementing the Java Dat
S.O.D.A. is a an object API to communicate with databases.
The current specification is focussed on queries.
Goals are: type safety, object reuse, minimum string use, programming language independance.
rdb2oo is a project to create source code for classes which correspond to tables in a relational database.
rdb2oo is also about creating an object oriented abstraction layer for simple database access.
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...Digital objects are any documents in digital form. For example text, software, audio, video, ... Digital Library store a metadata and fulltext (text/binary) of digital object
Seperation pool and factory; aspect like proxy handler having more control over the usage of pooled java object; multiple server can be used by one pool to load balance the load and support failover. Native Corba, JMS, CICS, MQSeries support
jUDO (java Universal Data Objects) handles coding against a database Independent of database (plugins for db2/Oracle/Cloudscape/mysql/mysql etc).The code is generated "runtime" , just give the method names and jUDO derives the code/sql.
The iChilli mobile J2EE platform provides a J2EE compliant runtime environment for both server and mobile platforms, such as J2ME, MIDP or other CLDC based devices. For example iChilli runs on the PersonalJava enabled Sharp Zaurus and Compaq's iPAQ.
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The project aims at developing J2EE Connector Architecture 1.0 Compilant Resource Adapters for integrating various EIS's like XML files, XML DB, LDAP, FTP, SMTP, POP3, Point Of Sale, Properties File, Office Documents
[RETIRED] Tornado/DB is an object-relational mapping engine for Java. Features
include object caching, multi-table inheritance, compound keys, relationships, XML config., JSP tags, small footprint.
Momoko is a framework for developing distributed, multi-user, network-aware applications. It includes facilities for storing objects in a tree structure, a shell for manipulating the object database, orthogonal persistence, scripting support, and a trans
Tiger is an object-oriented database, written in java. It uses the concept of primary keys, aggregates, relations and indexes for finding java objects in persistent storage. Tiger have support for transactions and remote access.
Cartographer is a simple,efficient object relational mapper engine. It provides rapid access to relational data using lightweight data and factory java objects.
Based on a subproject, called Gerbo, it does the object mapping of a Relational Database. It is like torque and object bridge, but simplier.
The full project will have a GUI to make instrospection in a already created database and create the OR. Java.
Java Object DBMS stores serialized java objects in a file with keys. The keys are automatically maintained. Heavy use of introspection minimizes programming burden. Future plans include transactions, network (RMI, SOAP) access.
This is basically a layer for the Object Bridge project that will allow you to use the JDO specs. This project may disappear if it's decided to join it with the OJB project, but for now, it will allow me and whoever else wants to help to get moving.
Lyophilizer helps developers create systems of JavaBeans without worrying about different persistent/transactional/secure back ends. It is evolving into JDO and currently supports JDBC, EJB and in-memory storage.
J2EE based database access; an alternative to Entity EJBs that allows for much higher performance, easier use, less coding, more dynamic, and more tuned to use with a web presentation layer (such as Tapestry).
Rodin (Relational Object Dbms Implementing java binding in a Not-proprietary way) is a free implementation of Matisse, the proprietary object database.
This project is still in early stage of developpement.
Jaxup is an XML update engine written in Java to work against
a variety of XML based object models such as DOM,
dom4j and JDOM. It supports the xupdate standard draft and
will support other xml update standards as they become available.
TogMap is a module for the CASE Tool Together which generates
XML-mapping-files for OR-Mappers. It takes an existing
object model, which you can augment by OR-specific markers, and produces an XML-mapping file. Currently only for Castor-JDO.
A package for persistent Java which which makes a relational database appear as an object database and automatically handles object storage, retrieval, and table creation.