Projects

Hibernate

Hibernate is a powerful, high performance object/relational persistence and query service for Java. It lets you develop persistent objects following common Java idiom, including composition, association, inheritance, polymorphism, and the Java collections framework. To allow a rapid build procedure ... [More] , Hibernate rejects the use of code generation or bytecode processing. Instead, runtime reflection is used and SQL generation occurs at system startup time. It supports Oracle, DB2, MySQL, PostgreSQL, Sybase, Interbase, Microsoft SQL Server, Mckoi SQL, Progress, SAP DB, and HypersonicSQL. [Less]

Hibernate Annotations

Hibernate, like all other object/relational mapping tools, requires metadata that governs the transformation of data from one representation to the other (and vice versa). As an option, you can now use JDK 5.0 annotations for object/relational mapping with Hibernate 3.2. You can use annotations in ... [More] addition to or as a replacement of XML mapping metadata. [Less]

Hibernate Entity Manager

Hibernate EntityManager implements: * The standard Java Persistence management API * The standard Java Persistence Query Language * The standard Java Persistence object lifecycle rules * The standard Java Persistence configuration and packaging Hibernate EntityManager wraps ... [More] the powerful and mature Hibernate Core. You can fall back to Hibernate native APIs, native SQL, and native JDBC whenever necessary. The Hibernate Java Persistence provider is the default persistence provider of the JBoss EJB 3.0 implementation and bundled with the JBoss Application Server. [Less]

EclipseLink

claimed by Eclipse Foundation

The Eclipse Persistence Services Project (EclipseLink) project's goal is to provide an extensible framework that will enable Java developers to interact with relational databases, XML, and Enterprise Information Systems (EIS) in an efficient and productive manor. EclipseLink will focus on ... [More] supporting leading persistence standards including the Java Persistence API (JPA), Java API for XML Binding (JAXB), Java Connector Architecture (JCA), and Service Data Objects (SDO). [Less]

Apache OpenJPA

claimed by Apache Software Foundation

A Java EE persistence project. It aims to be a feature-rich implementation of the persistence part of Java Community Process JSR-220 (Enterprise JavaBeans 3.0), which is known as the Java Persistence API (JPA). OpenJPA can be used as a stand-alone POJO persistence layer, or it can be integrated into ... [More] any EJB3.0 compliant container and many lightweight frameworks. [Less]

DataNucleus

The DataNucleus project provides products for the management of application data in a Java environment. Our aim is to provide good quality open source products to handle data in all of its forms, wherever it is stored. This goes from persistence of data into heterogeneous datastores, to providing ... [More] methods of retrieval using a range of query languages, and eventually on to the analysis of data and tools for managing data quality. DataNucleus Access Platform is the baseline product providing persistence of Java objects to a range of datastores using JDO and JPA APIs and permitting various query languages. [Less]

Hibernate Search

Hibernate Search brings the power of full text search engines to the persistence domain model and Hibernate experience, through transparent configuration via annotations and a common API. Full text search engines like Apache Lucene(tm) allow applications to execute free-text search queries. ... [More] However, it becomes increasingly more difficult to index a more complex object domain model - keeping the index up to date, dealing with the mismatch between the index structure and the domain model, querying mismatches, and so on. Hibernate Search help to tackle these problems and provides additional features such an easy to use Query DSL, JPA integration, advanced filtering, scalable clustering and monitoring features. [Less]

Cayenne

claimed by Apache Software Foundation

Apache Cayenne is an open source persistence framework licensed under the Apache License, providing object-relational mapping (ORM) and remoting services. With a wealth of unique and powerful features, Cayenne can address a wide range of persistence needs. Cayenne seamlessly binds one or more ... [More] database schemas directly to Java objects, managing atomic commit and rollbacks, SQL generation, joins, sequences, and more. With Cayenne's Remote Object Persistence, those Java objects can even be persisted out to clients via Web Services. Or, with native XML serialization, objects can be even further persisted to non-Java clients - such as an Ajax-capable browser. [Less]

JPOX

JPOX provides transparent persistence of Java objects. It is a compliant implementation of the JDO1.0, JDO2.0, JDO2.1 and JPA1.0 specifications. It supports persistence to all of the major RDBMS on the market today, as well as to DB4O datastores. It allows querying using either JDOQL, SQL or JPQL. ... [More] JPOX 1.1.0 is the Reference Implementation(RI) for JDO 2, and JPOX 1.2.0 is the RI for JDO2.1. It uses OSGi technology for its plugin framework [Less]

CDO Model Repository

claimed by Eclipse Foundation

CDO Model Repository ===================== CDO is both a development-time model repository and a run-time persistence framework. Being highly optimized it supports object graphs of arbitrary size. CDO offers transactions with save points, explicit locking, change notification, queries ... [More] , temporality, branching, merging, offline and fail-over modes, ... The storage back-end is pluggable and migrations between direct JDBC, Hibernate, Objectivity/DB, MongoDB or DB4O are seamless for CDO applications. [Less]