Live Blog: Book Review of Oracle SOA Governance 11g Implementation – Last Edit: 18th November
(this article is a live blog: it is a work in progress – as I am currently reading this book – and this article will be updated in the …
Author: Lucas Jellema
Book Review of Building Modular Cloud Apps with OSGi by Bert Ertman and Paul Bakker (last edit: 25th October)
(this article was written as a live blog: it was work in progress for several days- while I was reading this book – this article was updated several times; …
Enriching XMLType data using relational data – XQuery and fn:collection in action
One of my colleagues had an interesting challenge. In an Oracle Database he has a table that contains an XMLType column. The column contains XML documents with people collections. …
Java 8 – Collection enhancements leveraging Lambda Expressions – or: How Java emulates SQL
Part of the evolution of Java in release 8 consists of Lambda expressions. These ‘functional expressions treated as variables’ introduce a powerful Inversion of Control in Java – allowing …
Java 8 – The Road to Lambda expressions
Java 8 offers wonderful opportunities and new interesting intellectual challenges for Java developers. With this upcoming release, we are once again focused on programming itself – instead of yet …
OOW13: summarizing one week and 2000 sessions in 3 hours and a bit – the yearly AMIS OOW Review session – 10th October
On Thursday 10th of October, the 12 man strong AMIS delegation at Oracle OpenWorld and JavaOne 2013 will present its findings in a 3 hour session at AMIS HQ …
JavaOne 2013: (Key) Notes of a conference – State of the Java platform and all the roadmaps
Last week’s JavaOne conference provided insights in the roadmap for the Java platform as well as in the current state of things in the Java community. The close relationship …
OOW13 and JavaOne 13: Notes from a Conference – Part Two
In this article a second brain dump with observations from the Oracle OpenWorld and JavaOne conferences. These are fairly raw notes – primarily for my own consumption. They may …
OOW13: Cloud roadmap announcements – from zero to H/A WebLogic Cluster plus Database RAC in 30 minutes
Oracle’s cloud ambitions are as high as ever before. All software from Oracle should run both on premise as well as in the cloud. Moving components from on-premise to …
OOW13: First glimpses of the new SOA Suite 12c
During this week’s Oracle OpenWorld Conference, we were given some sneak peeks into the short term future of the Oracle SOA Suite. During various roadmap sessions, on the demo …
OOW13 and JavaOne 13: Notes from a Conference – Part One
In this article a first brain dump with observations from the Oracle OpenWorld and JavaOne conferences. These are fairly raw notes – primarily for my own consumption. They may …
OOW13: Meeting Oracle Cloud Document Service – Enterprise Grade Dropbox?
As I was wandering (and wondering) around the demo grounds at Oracle OpenWorld, I bumped into a booth demonstrating the upcoming Oracle Cloud Document Service. This service is yet …
Giving Java 8 a spin using NetBeans 7.4 RC
Being at JavaOne 2013 has inspired me to heed the call to option from the Java team at Oracle and give JDK 8 Early Adopter a spin. This article …
OOW13: Typical conference expressions – and their real meanings
Corporate speakers at Oracle OpenWorld or JavaOne draw from a range of expressions that may have less than obvious meanings. These expressions are used sometimes for brevity and at …
OOW13: What questions to get answered and plans to see evolved at this year at Oracle OpenWorld Conference
As I am about to start my ninth Oracle OpenWorld Conference, I am wondering what this year’s conference will have in store for me. My schedule is largely filled …
OOW13: Sneak Preview of the Major Announcements?! In-Memory Database, PaaS (Database and Java) and M6 big memory machine
Recent press releases as well as the comment provided by Oracle’s top brass around the FY14 Q1 earning provide some insight in what the key stories seem likely to …
Case Study: A Case of Fusion Middleware
The story of NOPERU – the National Organization for Permits for Emissions and Resource Usage – is an interesting one. Because it reveals the business drivers for embarking on …
ADF 12c: Using WebSockets to implement client to client push (in a scalable manner)
WebLogic 12c (12.1.2) has support for WebSockets. ADF 12c runs on WebLogic 12c. Therefore, we should be able to leverage that WebSockets support in an ADF application. And indeed …
ADF 12c – The Hierarchical Mystery Tour – Treemap, Sunburst, Treetable, Hierarchy Viewer and Thematic Map
Hierarchical data is common phenomenon in the real world. Presenting such data to allow users to quickly grasp the composition of numbers, to compare quantities, to navigate through a …
Oracle Database SQL – Recursive Subquery to inspect events in football matches – find the MVP
In a recent post (https://technology.amis.nl/2013/07/24/oracle-database-12c-find-most-valuable-player-using-match_recognize-in-sql/) I described how we can use the new Oracle Database 12c MATCH_RECOGNIZE operator to spot patterns in records and derive results from those patterns. …
Oracle Database 12c: Find most valuable player using MATCH_RECOGNIZE in SQL
One of the very nice new features in SQL in Oracle Database 12c is the MATCH_RECOGNIZE operator. MATCH_RECOGNIZE adds a facility for spotting patterns in records. This allows us …
ADF DVT: Sunburst to quickly inspect the hierarchical composition
The recent JDeveloper/ADF 11gR1 Patch Set 6 release introduced the Sunburst component, one of the many data visualization components in ADF. Sunburst (sometimes called Rings Chart) provides an attractive …
JDeveloper 12c & ADF 12c: Launch of the next generation
Last week – just when I was at the far end of a narrow internet connection – Oracle released JDeveloper 12c (12.1.2) along with ADF 12c and WebLogic 12c …
Live match report using JMS, BAM, ADF Push and Data Visualization
Real time events can be translated into a live visual representation using a largely declarative approach. Events can be published for example on a JMS Topic. Using Oracle BAM …
Oracle Database 12c: Flashback Moving Forward
Flashback started out as a feature in Oracle Database 9i. Although to be honest it is just the opening up of a mechanism that has been at the core …
Oracle Database 12c: quickly create a virtual machine with OEL 6.4 and Oracle Database 12c (for dummies)
I am first and foremost a developer. I am not an administrator. I know more about IDEs and GUIs than about command line. I have always been a little …
Oracle Database 12c: How to create a Virtual Box VM with Oracle Enterprise Linux inside – A dummy guide
I have a confession to make. I have not been into Linux very much. When I started my career at Oracle, back in 1994, I had to do a …
Oracle Database 12c: In-Database Archiving to deal with logically discarded records
When a record is no longer active – it is logically discarded – you may want to delete it. However, the record may still be required – for compliancy …
Oracle Database 12c: Pattern Matching through MATCH_RECOGNIZE in SQL
Oracle 8i (8.1.6 if I remember correctly) started with the introduction of a that wonderful new phenomenon in SQL: Analytical Functions. Functions that basically allow the result for one …
Oracle Database 12c: joining and outer joining with collections
Joining is a key ingredient in most SQL queries. Using collections (aka nested tables) that are produced on the fly inside the SQL query or that are returned by …
Oracle Database 12c: PL/SQL package UTL_CALL_STACK for programmatically inspecting the PL/SQL Call Stack
Oracle Database 12c ships with a brand new supplied package called UTL_CALL_STACK. This package provides an API for inspecting the PL/SQL Callstack. The package complements the DBMS_ UTILITY.FORMAT_CALL_STACK …
Oracle Database 12c: In Line PL/SQL Functions in SQL queries
At long last it’s here: Oracle Database 12cR1. The download of this fresh software package is hardly done. It is time to start sharing some of our early experiences …
Java EE 7: Creating a background download manager using Java Batch in GlassFish 4.0
One of the brand new specifications in Java EE 7 is JSR-352 Batch Applications for the Java Platform. This specification describes how Java EE containers will allow applications to …
Java EE 7: EJB publishing CDI Events that are pushed over WebSocket to browser client
In this article, I show how I have created a simple and fairly meaningless Java EE 7 application that uses a number of smart Java EE features: a stateless …
Getting started with Java EE 7 – Hands on in 10 minutes
Last week saw the release of Java EE 7 – the new edition of the Java Enterprise platform. It is a substantial release – which advances the Java Enterprise …
Emulate Cross Service Joins in SOA Suite with Table Functions and Database Adapter
It was fairly difficult to come up with a title for this article that sort of covers the content. To me it is quite clear what this is about …
ADF Academy launched- interactive, entertaining and educational
Last week I was prompted to take a look at the new Oracle ADF Academy that has just published its first lesson: Developing Applications with ADF Mobile. As you …
On the Integrity of Data
To be useful, data held and used in information systems has to live up to a number of expectations. The data should be an accurate representation of its source. …
ADF DVT: Analyzing Financial Position of the European Football (Soccer) Leagues using Treemap
We all know a lot of money is involved with professional sports. One of Europe’s major sports is football (or soccer as some like to call it). A lot …
ADF DVT – Scaling TreeMap components for comparisons across masters and categories
In a recent article (https://technology.amis.nl/2013/04/02/adf-dvt-using-the-tree-map-visualization-component-to-compare-relative-sizes-and-distributions/) I discussed the ADF DVT Treemap component. This component visualizes data in such a way that comparisons between data values for different records and …