Lost default values of bind variables set in ViewAccessor

Recently i ran into a situation where i had to specify a default value for bind variable in ViewAccessor  and access the value in the lookup view object. Upon analysis, I found that when i accessed the value using bind variable accessor, the value was always null but in the overridden executeQueryForCollection method i was always receiving the...

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ADF transaction handling for non database applications

ADF provides strong transaction handling mechanisms for database based applications which are backed by entity and view objects. But what if you have a application which does not use database ? How do you then detect changes to your data ?.  Let’s say you have a web service backed programmatic view objects and you have extended your application...

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ADF Essentials and OPSS

ADF essentials release does not include the two IDM jar files that are used for OPSS integration (these are included with normal ADF release) .  Although to use OPSS APIs’ features one does not require a porting effort. I just hope that Oracle can offer these with the ADF essentials release. Here are the reasons why Oracle should do it. OPSS API’s are Directory server vendor agnostic: The same code works for OID as it works for OpenLdap and Active Directory (you only have to switch the providers). OPSS API’s are container agnostic:...

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Tracing a J2EE application in Database

To trace an existing J2EE application (or a legacy application,legacy here means the ones still not using CDI) at database layer is not easy, especially if that application does not have any reference to the user whom you want to trace. A cumbersome way would be to pass the user name or id from the view layer to each method you call on model layer and then pass it further down to class method from which you obtain the database connection. But, there is a far easy solution that i am going to discuss in this post. The solution that i am going to...

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Java Windows Shutdown Utility v0.3

I had developed this utility on swing back in 2009. This utility can be used to schedule shutdown, lock, sleep, hibernate, reboot and log off operations in windows. Earlier this utility was based on external dependencies and due to this dependency the utility was not working anymore . Now I have created two versions of the utility Shutdown-basic*...

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SonarQube with ADF application

To determine code quality of an application,lot of tools are available such as PMD, FindBugs,etc. During the product development life-cycle there are various phases such as unit testing, code coverage analysis, performance testing ,and code quality analysis. SonarQube is one such open source tool that aggregates the aforementioned metrics into a single...

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ADF examining memory leaks

Developers while creating the applications often ignore guidelines of closing result sets which is the most common cause of memory leaks. In ADF applications it is the RowSetIterators that need to be closed . This scenario can easily be simulated under load testing using jmeter and turning on memory sampling in JVisualVM.  In this post i will...

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ADF exception handling scenario

A user on OTN forum was trying to extend the AdfcExceptionHandler in which he was trying to do redirect to an error page and facing Response Already Committed exception. On examining the scenario i could see that the phase in which the exception handler was being called was RENDER_RESPONSE and by this time it is too late to do a redirect as part of...

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ADF Master Detail Table Scenarios

In this post i will share some scenarios that you might face with ADF Master Detail Table component. Typically those mentioned below:- Create a row in child table on creation of row in master table (uses Accessor to programmatically create a row in child ) Using Cascade delete option on committed rows The code sample is based upon scott schema...

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OIM 11g GTC Status Provisioning and Reconciliation

If you have a requirement to reconcile user status from target resource and also to provision the value of user status into a target account you can follow this post. Let’s say for example in the target resource the status is marked as A for enable and  D for disable. To accomplish this using GTC connector you will need a lookup based translation. Provisioning: For...

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oracle oui setup.exe crashes on windows 7

I recently faced an issue that after installing and configuring IDM domain, when i tried to run the config.bat for oim server the script was crashing on my windows 7 OS. The problems faced by me are mentioned below along with the causes and solutions. Problem: Setup.exe has stopped working; Solution: Try placing the JDK in a directory that does not...

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Target Reconciliation Scheduler in OIM 11g

In this post i am sharing the process to make your own custom reconciliation connector. The process flow of the scheduler is shown in the below flowchart.   This flow chart is a simplified version and should serve as a simple aid. The code for the 11g scheduler is shown below, it is a pretty crude implementation and just serves as a POC it...

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