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JPA Web App Tutorial - Maven Project

The JPA Web Application tutorial for Tomcat / Jetty as a Maven project (download & run).

How to install ObjectDB?

All about How to install ObjectDB? in Java/JPA database - explanations, examples, references, links and related information.

Database Server

that web application and run within the web server process. Starting the ObjectDB Server The ObjectDB ... . Usage: java com.objectdb.Server [options] start | stop | restart options include: -conf start the server, use the start command line argument: > java com.objectdb

What's next?

in this chapter. Getting Started with JPA and Eclipse Tutorial Getting Started with JPA and NetBeans Tutorial These tutorials explain how to run the sample program. You can easily start ... the details by reading the other chapters of this manual. If you prefer to get started using ObjectDB right

ObjectDB Download

Your download should start automatically. If it doesn't, please click here. First Steps in using ObjectDB For step by step instructions on how to use ObjectDB in your IDE refer to one of the following tutorials: Getting Started with JPA and Eclipse Tutorial Getting Started with JPA and NetBeans Tutorial

Strings in JPQL and Criteria Queries

('China') is evaluated to 5. LOCATE - Locating Substrings The LOCATE(str, substr [, start]) function ... (when present) specifies from which position to start the search. LOWER and UPPER - Changing String Case ... - Getting a Portion of a String The SUBSTRING(str, pos [, length]) function returns a substring

ObjectDB Object Database Features

for Eclipse, NetBeans, IntelliJ and Maven. Getting Started Tutorial (console). Web Application ... could start using ObjectDB immediately. SQL-like (but object based) query language - familiar ... . Can also be managed (started, restarted, stopped) from the command line. Class Enhancer Boosts

Database Connection using JPA

the need for a persistence unit. Any string that starts with objectdb: or ends with .odb or .objectdb ... = Persistence.createEntityManagerFactory("objectdb:myDbFile.tmp;drop"); Getting an empty clean database easily ... (); } A transaction is started by a call to begin and ended by a call to either commit or rollback. All the operations

Getting com.objectdb.o.UserException:

the default configuration file. I am getting the follwing error when I launch the application ... ) at org.apache.catalina.core.StandardContext.start(StandardContext.java:3404) at org.apache ... .startup.HostConfig.start(HostConfig.java:389) at org.apache.catalina.startup.HostConfig

ObjectDB - Object Database for Java (JPA/JDO)

and follow the Getting Stated Tutorial, and in minutes you will be able to run your first Java and JPA ... , records, ORM tools and mapping - start writing more effective database code using Java classes