Fast Object Database for Java - with JPA/JDO support

ObjectDB ObjectDB

About HttpServlet

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6	NoSuchFieldError: __odbTracker on NetBeans 7.3 + JBoss 7.1.1 ) javax.servlet.http.HttpServlet.service(HttpServlet.java:734) javax.servlet.http.HttpServlet.service(HttpServlet.java:847) org.jboss.weld.servlet.ConversationPropagationFilter.doFilter ... .http.HttpServlet.service(HttpServlet.java:734) 12:25:10,458 ERROR [stderr] (http--127.0.0.1-8080-1
6	Problem to use find method on an abstract Class: AbstractMethodError is thrown .java:46) [classes:] at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final] at javax.servlet.http.HttpServlet.service(HttpServlet.java ... (PaltzefomatServlet.java:46) [classes:] at javax.servlet.http.HttpServlet.service(HttpServlet.java:754
5	Felix, rollback exception, error 613 ) at FelixProject.ExampleServlet.doGet(ExampleServlet.java:21) at javax.servlet.http.HttpServlet.service(HttpServlet.java:618) at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) at org ... .servlet.http.HttpServlet.service(HttpServlet.java:725) at org.eclipse.jetty.servlet.ServletHolder
4	error 990 ? (FrameworkServlet.java:563) at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.catalina.core.ApplicationFilterChain
4	Error in production. Failed to commit transaction: Unexpected database state: BTree -152 is not found .java:108) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilterChain
4	Error reading UTF string (RAServlet.java:94) [reverse.ajax.jar:] at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final] at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final] at org.apache
4	InvalidClassException .server.servlet.JsonServlet.doGet(JsonServlet.java:427) at javax.servlet.http.HttpServlet.service(HttpServlet.java:624) at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) at org.apache
4	NullPointerException on TreeSet load ) at web.TimelinesServlet.doGet(TimelinesServlet.java:71) at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) at javax.servlet.http.HttpServlet.service(HttpServlet.java:741
4	Potential ObjectDB bug .6.6] at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [jboss-servlet-api_3.1_spec-1 ... .servlet.http.HttpServlet.service(HttpServlet.java:790) [jboss-servlet-api_3.1_spec-1.0.0.Final.jar:1
4	Server crash - Mismatch client-server protocol prefix .apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.jasper.servlet.JspServletWrapper.service ... ) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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DBMS Features	Quick Tour with JPA	ObjectDB FAQ
Editions and Prices	JPA Console Tutorial	ObjectDB Manual
Licence	Web App Tutorial	Forum
Attributions	Java EE JPA Tutorial	Issue Tracking
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Copyright © 2003, 2010, 2020 ObjectDB Software, all rights reserved. The JPA API Reference Documentation (JavaDoc) on this website is derived with some adjustments from the open source JPA 2 RI (EclipseLink) and is available under the terms of the Eclipse Public License, v. 1.0 and Eclipse Distribution License, v. 1.0. The JDO API Reference Documentation (JavaDoc) on this website is derived with some adjustments from the JDO 2.2 API and is available under the terms of the Apache License, v. 2.0. Images on this website are available under these licecnes. Documentation on this website explains how to use JPA in the context of the ObjectDB Object Database but mostly relevant also for ORM JPA implementations, such as Hibernate (and HQL), EclipseLink, TopLink, OpenJPA and DataNucleus. ObjectDB is not an ORM JPA implementation but an Object Database (ODBMS) for Java with built in JPA 2 support.