Andrejus Baranovskis Blog - JDev/ADF Samples list: TopLink

Showing posts with label TopLink. Show all posts

Wednesday, December 19, 2007

Oracle Spatial and TopLink 11g. This spring I was blogging about Oracle Spatial object type oracle.spatial.geometry.JGeometry support in TopLink Essentials JPA - Oracle Spatial and TopLink Essentials JPA. But time dont wait, and we already have TopLink 11g that comes with Oracle JDeveloper 11g Technical Preview 2. In TopLink 11g support for JGeometry object type is much simplified and can be used in more convenient way. Developed sample application contains Model and ViewController projects. In Model part, TopLink 11g is used to build persistence layer. In ViewController part, User Interface is developed with ADF Faces Rich Client. In order to run developed sample application you need to have Oracle MapViewer demo dataset MVDEMO in your database. You can download dataset from OTN and install it into your database as separate schema.

Web Service Invocation in Oracle ADF. Some time ago I was blogging about how to access persistence layer through Web Service interface - Web Services and Oracle TopLink. In this sample I show how it is possible to use Web Service in Oracle ADF View layer. Sample is developed based on steps described in Frank Nimphius how-to article available on OTN - Using Web Services with Complex Return Types in ADF.

Web Services in Oracle JDeveloper 11g. I have received a comment for my previous post - Web Services and Oracle TopLink, about if to try similar sample on Oracle JDeveloper 11g Technical Preview release. Yes, it is interesting, just because you can compare and evaluate new powerful features that will bring JDeveloper 11g Production release. I have tested Web Services development support in 11g using developed sample application, this sample implements annotation only Web Service. I have used the same business logic as for previous one.

Web Services and Oracle TopLink. If you are Oracle TopLink developer and want to access persistence layer through Web Service interface, hopefully you will find an answer in this post. Developed sample doesn't provide user interface, it will be tested on Oracle Application Server. It is based on standard HR schema and provides functionality of querying for all or one particular country.

Oracle Spatial and TopLink Essentials JPA. It seems Oracle Spatial functionality can be used successfully with TopLink Essentials JPA also. I have reviewed in detail Doug Clarke (Principal Product Manager for Oracle TopLink) post about how it looks in theory - Oracle Spatial using TopLink Essentials JPA. And, have implemented described steps in practice. I have faced some issues, but final result is successful.

Many-to-Many mapping in Oracle TopLink. This kind of mapping in relational world is constructed using three tables. However, in object world only two classes are used for many-to-many. I have developed sample application that shows how many-to-many is supported in Oracle TopLink. For this sample I'm using Readers/Blogs mapping - one reader can read many blogs and one blog can be read by many readers.

TopLink as a Content Repository for WebCenter Portlet. It was interesting for me to create a content repository for portlet, based on Oracle TopLink object-relational mapping. Developed sample, demonstrates how to use standard portlets with TopLink and how to integrate portlets into ADF application. Sample contains two workspaces, this means that it is based on two independent samples - PortletProvider and PortletConsumer.