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What is the Java Persistence API (JPA)?

to interact with a relational database such as Oracle, DB2, SQL Server or MySQL. The popular JPA


As explained in chapter 2, entity objects can be deleted from the database by: Retrieving the entity objects into an EntityManager. Removing these objects from the EntityManager within an active transaction, either explicitly by calling the remove method or implicitly by a cascading operation

Literals in JPQL and Criteria Queries

method: Expression n = cb.literal(null); or by a special CriteriaBuilder's method, nullLiteral

ObjectDB - Object Database for Java (JPA/JDO)

you will be able to run your first Java and JPA database driven application in Eclipse or NetBeans. Forget

Java EE JPA Tutorial - Maven Project

The Java EE Web Application tutorial provides step by step instructions on how to build a simple Java/JPA database driven web application (for GlassFish 3/ JBoss 6) in Eclipse or NetBeans. Building a new application step by step is an effective way to learn - but if you prefer, you may download

JPA Tutorials

GlassFish 3.0.1 or JBoss AS 6. Another tutorial shows how to use JPA in a Spring MVC Framework 3 web

Java EE 6 JPA Tutorial - Eclipse Project

or define the server and click Finish. Eclipse should open an internal browser window

Step 3: Define an EJB Session Bean

Operations on the database will be performed by an instance of a session bean (EJB) class that we will define in this step: Open the [New Session Bean] dialog box by right clicking the guest package node (in the [Projects] window), selecting New > Other... > Java EE (or Enterprise JavaBeans

Step 3: Create an ObjectDB Data Source

). Specify an ObjectDB connection url - either embedded (e.g. c:\points.odb) or client-server (e.g

Spring MVC JPA Tutorial - Eclipse Project

Integration for WTP is installed when the Maven project is imported into the IDE). Choose or define

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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