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Tuesday, 22 September 2015

Using popupFetchListener to execute method on popup launch in Oracle ADF

Everyone must have used ADF Faces popup component , this is one of most used container to show information on top of page
In this post i am talking about popup fetch event suppose we have to perform some operation before opening popup like filtering data inside popup . We can do this by capturing popup fetch event, if you have checked af:popUp documentation then you must have seen concept of popupFetchListener

From Docs-
The PopupFetchEvent is one of two server-side popup events but doesn't have a corresponding client event. The popup fetch event is invoked during content delivery. This means that the event will only queue for popups that have a contentDelivery type of lazy or lazyUncached. Another caveat is that the event will only work when the launch id is set. This is automatically handled by the af:showPopupBehavior but must be provided as a popup hint if programmatically shown.

So here we will see -

How to use popupFetchListener to filter data inside popup ?
How to execute some operation before opening popup ?
How to call AMImpl method before launching popup?

Monday, 14 September 2015

ADF Basics: Call PL/SQL Stored function in ADF Application


This post is about calling stored function in ADF Application , a very basic requirement. Many times we need to call a PL/SQL function in ADF app for any specific requirement.
In this post i am discussing same so for that i have created a PL/SQL function that takes EmployeeId as input parameter and return it's Employees Name (Using Oracle HR Schema)


CREATE OR REPLACE FUNCTION FN_GET_EMPNAME(EMP_NO NUMBER)
RETURN VARCHAR2 IS
   EMP_NAME VARCHAR2(50) := 'N';
BEGIN
   SELECT FIRST_NAME||' '||LAST_NAME into EMP_NAME
   FROM EMPLOYEES WHERE EMPLOYEE_ID=EMP_NO;
   
   RETURN EMP_NAME;
END;

Thursday, 10 September 2015

Jdeveloper installation folder size increasing beyond limit , Reason was hprof (Heap Profiling) files

Recently i faced a problem, i was lacking space on my C drive so  checked all directories and found that the size of Jdeveloper 12.1.3 installation folder Oracle-->Middleware  was approx 30 GB . This is not expected as Jdev. takes approx 1.5 to 2 GB space only


Then i found some java_pidXXXX.hprof file that was taking lot of space in this folder

Saturday, 5 September 2015

Apply ValueChangeListener to programmatically created ADF Faces components

Again a post in series of  Working with ADF Faces Components programmatically
Previously i have posted about Getting value , Applying Action Listener , Applying Client/Server Listener, Creating and applying client Attributes, Setting value expression , Applying Validation to programmatically created component
Now this post post is about applying Value Change Listener to a component that is created at run time
See how to do this (Jdev 12.1.3)-
  • First created a FusionWebApplication and a page in viewController project
  • Dropped a button on page , on this button action i will create an inputText programmatically and assign Value Change Listener method reference to it
  • To create new inputText i have added following code (described in previous post)

Tuesday, 1 September 2015

Apply Validator to programmatically created ADF Faces components

Again a post in series of  Working with ADF Faces Components programmatically
Previously i have posted about Getting value , Applying Action Listener , Applying Client/Server Listener, Creating and applying client Attributes, Setting value expression  to programmatically created component
Now this post post is about applying Validator to a component that is created at run time
See how to do this (Jdev 12.1.3)-
  • First created a FusionWebApplication and a page in viewController project
  • Dropped a button on page , on this button action i will create an inputText programmatically and assign validator method reference to it
  • To create new inputText i have added following code (described in previous post)