In this link you can review the information about all JDeveloper releases.
The first release JDeveloper 1.0 was in 1998!
After 18 years ADF has evolved and in View layer we had had UIX-JSP,Swing,Faces and now ADF Faces with MAF. But the core of ADF BC is similar arround big concepts like AMs,VOs,EOs,ViewLinks,Associations,…
I think that this is one of the main features in this framework, that protect you from UI technology changes and this is important in a big company or big projects
The aim of this post isn´t write a complete guide about the installation process.
There are a good tutorials in internet and oficial doc is very clear
I will write about some important things that you should keep in mind before the installation.
Install a correct JDK
7.0.13 is a good option.OpenJDK can be good for Weblogic but not for Forms
rpm -ivh jdk-7u13-linux-x64.rpm
Register your JDKs for alternatives and change the current java version
In this case remember you need a grant grant change notification to hr
In DCN You need to explicitly unregister a registration to delete it from the server and release the resources in the driver. You can unregister a registration using a connection different from one that was used for creating it
With DCN you could have problem with some column types.
ORA-29977: Unsupported column type for query registration in guaranteed mode
Check if in your query you have a blob,clob or xmlType column
Websockets have a default timeout in 30s
you can configure this time and other parameters in web.xml