• Menu
  • Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

JavaBeat

Java Tutorial Blog

  • Java
    • Java 7
    • Java 8
    • Java EE
    • Servlets
  • Spring Framework
    • Spring Tutorials
    • Spring 4 Tutorials
    • Spring Boot
  • JSF Tutorials
  • Most Popular
    • Binary Search Tree Traversal
    • Spring Batch Tutorial
    • AngularJS + Spring MVC
    • Spring Data JPA Tutorial
    • Packaging and Deploying Node.js
  • About Us
    • Join Us (JBC)
  • Java
    • Java 7
    • Java 8
    • Java EE
    • Servlets
  • Spring Framework
    • Spring Tutorials
    • Spring 4 Tutorials
    • Spring Boot
  • JSF Tutorials
  • Most Popular
    • Binary Search Tree Traversal
    • Spring Batch Tutorial
    • AngularJS + Spring MVC
    • Spring Data JPA Tutorial
    • Packaging and Deploying Node.js
  • About Us
    • Join Us (JBC)

EclipseLink

JPA Entity Primary Key Using @Id and @IdClass

March 7, 2014 //  by Amr Mohammed

At this tutorial we’ve explained the concept of entity identification. Entity identification is the process in which the Java Persistence Implementation identify an entity uniquely from set of entities that belong to the same type on a memory level or a database level. Each entity that located in the persistence context must has a unique …

Category: Java EETag: EclipseLink, JPA

EclipseLink / JPA Annotations – @Embeddable, @Embedded and @EmbeddedId

March 5, 2014 //  by Amr Mohammed

We’ve been providing several examples so far, most of the examples are being provided weren’t use complex persistent entity states; we are using a primitive data types such (int, String, BigDecimal, Date and etc ..). But what’s happened if you we’ve created an entity whose persistent states are other types (classes). No doubt that it …

Category: Java EETag: EclipseLink, JPA

Eclipselink / JPA – Abstract Entity And Non-Entity Classes In The Entity Inheritance

March 4, 2014 //  by Amr Mohammed

When we’ve discussed the inheritance and mapped superclasses concepts in the previous tutorials, we are avoiding concepts that could confuse the readers or makes misunderstanding for them. Most of the clarified examples didn’t provide an Abstract Entity as a target entities that can be managed by the entity manager. On the contrary an Abstract Entity was only …

Category: Java EETag: EclipseLink, JPA

EclipseLink / JPA Annotations – @AttributeOverride And @AssociationOverride

March 2, 2014 //  by Amr Mohammed

At this tutorial we’ll introduce using of @AttributeOverride and @AssocationOverride that mentioned intentionally at the @MappedSuperclass tutorial. As you’ve remembered at @MappedSuperclass annotation tutorial, we’ve mentioned at the Database Design section the possibility of using @AttributeOverride and @AssociationOverride to override the attributes and associations that inherited from the mapped superclass. An entity can inherit a persistent entity state and …

Category: Java EETag: EclipseLink, JPA

EclipseLink / JPA Annotations – @MappedSuperclass

March 2, 2014 //  by Amr Mohammed

This tutorial will explain the using of @MappedSuperclass, that could be considered as an alternative choice for sharing a persistent entity state and mapping information. An entity may inherit from a super class that provides a persistent entity state and mapping information as we’ve seen previously in the @Inheritance tutorials. Unlike using of @Inheritance, the …

Category: Java EETag: Annotation, EclipseLink, JPA

EclipseLink / JPA Annotations – @Inheritance With Table Per Concrete Strategy

March 1, 2014 //  by Amr Mohammed

The inheritance is one of the most scenarios that can be encountered once we’ve been coming into business field. Inside the Java Persistence API (JPA) The entities support inheritance, polymorphic, polymorphic associations, and polymorphic queries. Both abstract and concrete classes can be entities, and both of them can be annotated with the @Entity annotation, mapped as …

Category: Java EETag: EclipseLink, JPA

EclipseLink / JPA Annotations – @Inheritance With Joined Table Strategy

February 27, 2014 //  by Amr Mohammed

In the Java Persistence API (JPA) The entities support inheritance, polymorphic, polymorphic associations, and polymorphic queries. Both abstract and concrete classes can be entities, and both of them can be annotated with the @Entity annotation, mapped as entities and queried for as entities. Entities can extend non-entity classes and non-entity classes can extend entity classes, so …

Category: Java EETag: EclipseLink, JPA

EclipseLink / JPA Annotations – @Inheritance With Single Table Strategy

February 27, 2014 //  by Amr Mohammed

In the Java Persistence API (JPA) The entities support inheritance, polymorphic, polymorphic associations, and polymorphic queries. Both abstract and concrete classes can be entities, and both of them can be annotated with the @Entity annotation, mapped as entities and queried for as entities. Entities can extend non-entity classes and non-entity classes can extend entity classes, so …

Category: Java EETag: EclipseLink, JPA

  • « Go to Previous Page
  • Go to page 1
  • Go to page 2
  • Go to page 3
  • Go to page 4
  • Go to Next Page »

Primary Sidebar

Follow Us

  • Facebook
  • Pinterest

FEATURED TUTORIALS

How to Use Optional.ofNullable() Method in Java

What is new in Java 6.0 Collections API?

The Java 6.0 Compiler API

Introductiion to Jakarta Struts

What’s new in Struts 2.0? – Struts 2.0 Framework

JavaBeat

Copyright © by JavaBeat · All rights reserved
Privacy Policy | Contact