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Tutorial
7

Eclipse/JPA Web Application Tutorial

This is the Eclipse version of the JPA Web App tutorial. It demonstrates how to create and run a database driven Java web application in Eclipse - using Tomcat 6, ObjectDB and JPA. The demo web ... entity objects are stored in an ObjectDB database. Required Software For this tutorial you will need
Manual
7

Index Definition

Querying without indexes requires iteration over entity objects in the database one by one. This may take a significant amount of time if many entity objects have to be examined. Using proper indexes ... . When an entity object is stored in the database every indexed field must contain either null or
Manual
7

JPA Named Queries

" that retrieves all the Country objects in the database: @NamedQuery(name="Country.findAll", query ... all the entity classes that have objects in the database. However, an attempt to use a named query
Manual
7

JPA Persistence Unit

elements specify general properties. JPA 2 defines standard properties for specifying database url ... only when the containing classes become known to ObjectDB, for example when a first instance of the class is stored in the database.
Manual
7

JPA Query API

, the same JPQL query which retrieves all the Country objects in the database is represented by both q1 ... ObjectDB. In the context of the queries above, if there are no Country instances in the database
Tutorial
7

JPA Web Application Tutorial

This tutorial demonstrates how to create and run a database driven Java web application using Tomcat 6, ObjectDB and JPA. The demo web application manages a basic guestbook page. Every visitor ... a Guest entity object and all the Guest entity objects are stored in an ObjectDB database
Tutorial
7

NetBeans/JPA Web Application Tutorial

This is the NetBeans version of the JPA Web App tutorial. It demonstrates how to create and run a database driven Java web application in NetBeans - using Tomcat 6 Apache Tomcat Server 6.0 (some ... in an ObjectDB database. Required Software For this tutorial you will need the following software
Tutorial
7

Step 2: Define a JPA Entity Class

To store objects in an ObjectDB database using JPA we need to define an entity class: Open the [New Java Class] dialog box, e.g. by right clicking the project node (in the [Package Explorer] window ... should represent Point objects in the database. Besides the @Entity annotation and the id field
Tutorial
7

Step 2: Define a JPA Entity Class

To store objects in an ObjectDB database using JPA we need to define an entity class: Open the [New Java Class] dialog box, e.g. by right clicking the tutorial package node (in the [Projects] window ... ("(%d, %d)", this.x, this.y); } } The new class should represent Point objects in the database
Tutorial
7

Step 4: Create an ObjectDB Data Set

Queries against the database are represented in BIRT as data sets. To create the data set: Open the [New Data Set] dialog box by right clicking the Data Sets node in the [Data Explorer] window ... Points).  Enter a data set name (e.g. Points by X) and click Next. The database in this tutorial