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Understanding ADF Bindings in ADF Lifecycle


In this post I am going to focus on ADF Bindings layer and explore how it works when an ADF page with some data is initially requested from a browser. Oracle ADF provides its own extended version of JSF lifecycle. Actually, ADF extends standard JSF lifecycle implementation class and provides ADF phase listener which gets notified with before and after ...

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What Exactly are SQL Views?

You probably know about “ordinary views” already, but I’m sure you’ll find one or two things in this article that you haven’t thought about in this way yet… What exactly are SQL views? Views in SQL are a means of treating complex queries in the same way as “ordinary” tables. In fact, SQL is all about tables (which are bags ...

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Technical Leadership

As companies grow and mature, it is difficult to maintain the pace of innovation that existed in the early days. This is why as many companies mature (i.e. Fortune 500), they sometimes lose their innovation edge. The edge is lost when technical leadership in the company either takes a backseat or evolves to a different role (different than the role ...

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Custom Boolean User Type with Hibernate JPA

The ANSI SQL 1999 standard introduced a BOOLEAN data type (although unfortunately only as an optional feature). But to date it still isn’t implemented by most major database systems. As a consequence boolean columns are implemented in various ways. E.g., CHAR columns containing ‘Y’ or ‘N’, or using BIT columns. Subsequently, there is no way for JPA to provide a ...

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RESTful Error Handling with Spring


This post will illustrate a way in which exception handling can be implemented for RESTful web services in Spring in such a manner that the exception handling concerns are separated from the application logic. Taking advantage of the @ControllerAdvice annotation we are able to create a global helper class for all controllers. By adding methods that we annotate with both ...

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Docker Tools in Eclipse

Upcoming Docker Tooling for Eclipse gave a preview of Docker Tooling coming in Eclipse. This Tech Tip will show how to get started with it. NOTE: This is pretty bleeding edge and so some of the features may be half baked. But we are looking for all the feedback! The Docker tooling is aimed at providing at minimum the same basic level ...

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Getting started with AWS IAM

Recently AWS announced that using IAM Roles with their EMR service will be mandatory as of June 30 this year. In this post I will show you how to setup the IAM basics when you are starting with AWS. When you are starting from scratch with your new AWS account then you will see the following management console. Choose the ...

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