About JPA

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Tutorial
59

NetBeans/JPA Java EE Tutorial

This is the NetBeans version of the Java EE JPA tutorial. It demonstrates how to create and run ... and JPA. The demo web application manages a basic guestbook page. Every visitor can sign the guestbook ... : Persistence is managed by JPA. Every visitor that has signed the guestbook is represented by a Guest entity
Tutorial
59

NetBeans/JPA Web Application Tutorial

This is the NetBeans version of the JPA Web App tutorial. It demonstrates how to create and run ... modifications are needed for Tomcat 7.0), ObjectDB and JPA. The demo web application manages a basic ... that have already signed are listed below the form: Persistence is managed by JPA. Every visitor
Tutorial
59

Spring MVC JPA Tutorial - Maven Project

The Spring MVC JPA tutorial provides step by step instructions on how to build a simple Java/JPA Spring MVC database driven web application in Eclipse or NetBeans. Building a new application step by ... application as a Maven project: Spring MVC JPA - Maven Project (8KB) If Maven is installed - extract
Manual
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Deleting JPA Entity Objects

object references, if any). Orphan Removal JPA 2 supports an additional and more aggressive remove ... when many entity objects have to be deleted in one operation. The DELETE Queries in JPA/JPQL in chapter 4 explains how to use JPA DELETE queries.
Tutorial
57

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 ... and run the result application as a Maven project: Java EE JPA Web App - Maven Project (7KB) If Maven
JPA Doc
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JPA Annotations for Access Modes

Persistence fields can either be accessed by JPA directly (as fields) or indirectly (as properties and get/set methods). JPA 2 provides an annotation and an enum for setting the access mode: More details are provided in chapter 2 of the ObjectDB manual.
JPA Doc
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JPA Annotations for Classes

JPA defines three types of persistable classes which are set by the following annotations: Chapter 2 of the ObjectDB manual explains these annotations in detail. Entity and mapped super classes ... policy (as explained in chapter 3): Another JPA class annotation defines an ID class: ID classes
JPA Doc
57

JPA Annotations for Java EE

The following JPA annotations are in use to integrate JPA into a Java EE application and are managed by the Java EE container:
JPA Doc
57

JPA Annotations for JPQL Queries

The following annotations are used to define static named JPA queries: The JPA Named Queries section of the ObjectDB Manual explains and demonstrates how to use these annotations to define named JPQL queries.
JPA Doc
57

JPA Annotations for Mapping (ORM)

The following JPA annotations and enums are designated for mapping a JPA object model to a relational database, and are not required by ObjectDB: ObjectDB silently ignores all the above annotations.