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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 ... Java). If length is not specified (the third optional argument), the entire string suffix, starting

What's next?

reading the other chapters of this manual. If you prefer to get started with ObjectDB right away ... 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 your own ObjectDB

Online Backup

applications that provide round the clock service (24/7/365) such as most web applications. Starting Online Backup The online backup can be started by executing a special query on an EntityManager (em ... under the ObjectDB home directory. Online Backup Thread Executing the backup query starts the backup

ObjectDB Object Database Features

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

Database Connection using JPA

, bypassing the need for a persistence unit. Any string that starts with objectdb: or ends with .odb or ... (); } A transaction is started by a call to begin and ended by a call to either commit or rollback

Step 3: Add a Main Class

is provided in the Quick Tour chapter of the ObjectDB Manual. The next step (and the last in this tutorial) is running the project.

Step 3: Add a Context Listener Class

if not existing yet) when the web application starts, by instantiating an EntityManagerFactory ... starts (contextInitialized). Retrieves the EntityManagerFactory from the application scope attribute

Step 1: Create a Maven Web Project

We start by creating a new Maven-WTP dynamic web project in Eclipse: Open the [New Project] dialog box, e.g. by using File > New > Project... Select Maven > Maven Project and click Next. Verify ... > <id>start-jetty</id> <phase>pre-integration-test</phase> <goals

Step 1: Create a Maven Web Project

We start by creating a new Maven web project in NetBeans: Open the [New Project] dialog box, e.g. by using File > New Project... Select Maven > Maven Web Application and click Next. Choose a Project ... >       <execution>        <id>start-jetty</id>        <phase>pre-integration-test</phase>        <goals

[ODB1] Chapter 6 - Persistent Objects

When a new object is constructed by the new operator, it always starts as a transient object ... above also starts out as a transient object. It, however, becomes persistent, not by an explicit ... can easily start from them, as explained in the next section. 6.3 Retrieving Persistent Objects

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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