Posts Taged oracle

ADF Tutorial: How to use ProgressIndicator as a Progress Bar in table’s column, list or iterator.

Progress Bar is one state of the af:ProgressIndicator component – an useful multi-component designed to “give users an indication that there is a back end task in progress” or anything that has a measurable start and end.

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ADF Tips: How to update a View Object using a File? UploadFile Declarative Component.

Few weeks ago someone asked about how to add new rows to a view object using a file. That person thought that ADF provided such component out of the box; a kind of  uploadFile which would give that functionality. Unfortunately for him, that component does not exists but it doesn’t mean that one, the developer, could not create one using, for instance, declarative components. 

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JDeveloper 12.1.3: DVT Visualization Graphs, a step back?

I’ll try not to be too critical about it but… Most of us felt mesmerized and exited about this new version’s release notes where a bunch of new graphs were introduced which is great and we should, we are thankful to JDeveloper’s team for the effort. However, there are few “steps back” that I would like to mention to see if I get a valid response from someone in Oracle. Specifically about Bars Charts (this may apply for the rest of the other graphs as well). 

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ADF Tips: Cookies in ADF

Imagine this scenario; your ADF web application is wide open and there are no user management in the system. All operations are done anonymously and the requirement is that it should remain that way. The following use case  is to illustrate the situation and might not even make sense in a real world but will suffice the purpose of this post.

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ADF Tips: Timestamp when updating a row based on Business Components + Morale!

Last week I participated in a thread where an user asked the following question

“is there a way i can auto populate the updatedtimestamp with system date even though its not present in the UI?”.

Since the main question was about how to update a binding attribute without using the UI I refered the following method (from a JSFUtil):

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Oracle Linux Tip: How to install google chrome?

This is a very quick post that can save some people of frustration when trying to install google chrome in Oracle Linux without realising that Google Chrome doesn’t support any more Linux Red Hat distro, hence, Oracle Linux is not supported to. If you try to install it manually, you will face some missing libraries and dependencies (libstdc++.so.6) that will take you soon to google and find the solution. Hopefully, you have arrived here rather sooner than later. You can install Google Chrome by running:

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JDeveloper 12.c – ADF Tips: How to pass parameters to method in EL Expression

This is a very short post to show all ADF Developers currently working in the latest version of JDeveloper, a new feature that has been brought in this release powered by JSF 2.0. 

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ADF Tutorial: Implementing custom pagination.

Recently, we had a requirement were we need to implement a custom pagination for a content presenter template (integrating UCM into WC Portal). From there, we found useful information about how to achieve this on Yannick Ongena’s blog entry. Also, while researching for other requirements, we saw this Timo Hahn’s blog entry were he’s got a point:

Most users don’t use this feature which, or don’t know how to define a page variable.

So we decided to mix the two posts and now you are just reading the result

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ADF Tip: Cascading (dependent) LOV with mandatory (required) fields.

This post will assume that you have, at this point, implemented your Dependent LOV, using ADF Business Components the following;

  • You have View Objects and you have created  View Criterias.
  • Create some LOVs for View Objects attributes.
  • Specifying View Criteria over the View Accessors that retrieves your LOV. (implementing the dependency)
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ADF Tutorial: How to map roles to when user logs in.

ADF Security provides you with a really strong and robust security framework which allows you to set up the security for your application in a easy, quickly and understandable way. Also, if its good configured with, for example, Weblogic authenticator providers, then you can have all your enterprise roles coming from, for example, an Oracle Internet Directory (LDAP), mapped automatically with little configuration to your application roles. However, some times you might need to do some of this process manually

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