Oracle Database 11g: Virtual columns

Views in the Oracle database have several uses. You can use them to provide a view of data in different tables as a single object to query. You can use views to achieve a virtualization layer. Also views can be used to provide a user specific view of data. Implementing […]

My first NodeJS service

Maarten Smeets

Microservices implemented in JavaScript running on NodeJS are becoming quite popular lately. In order to gain some experience with this, I created a little in memory NodeJS cache service. Of course statefulness complicates scalability, but if I would also have implemented a persistent store to avoid this, the scope of […]

Asynchronous interaction in Oracle BPEL and BPM. WS-Addressing and Correlation sets

Maarten Smeets 1

There are different ways to achieve asynchronous interaction in Oracle SOA Suite. In this blog article, I’ll explain some differences between WS-Addressing and using correlation sets (in BPEL but also mostly valid for BPM). I’ll cover topics like how to put the Service Bus between calls, possible integration patterns and […]

Performance by using patterns in service implementations

Maarten Smeets 3

Performance in service oriented environments is often an issue. This is usually caused by a combination of infrastructure, configuration and service efficiency. In this blog article I provide several suggestions to improve performance by using patterns in service implementations. The patterns are described globally since implementations can differ across specific […]

API Management: Oracle’s vision from OOW

Maarten Smeets

Being at Oracle Open World you get a chance to learn about Oracle’s vision and strategy directly. In this blog I’ll summarize some of the things I learned about Oracle’s vision on API Management from Oracle Product Management. API management API Management is becoming more and more important. Major drivers for […]

How to use WLST as a Jython 2.7 module

Maarten Smeets 15

WebLogic Scripting Tool (WLST) in WebLogic Server 12.1.3 uses Jython version 2.2.1 (based on Python 2.2.1). This can be an important limitation when using WLST. Many modules are not available for 2.2.1 or are difficult to install. See here for an example. WLST however can be used as a module […]

Some thoughts on Continuous Delivery

Maarten Smeets

Continuous Delivery is something a lot of companies strife for. It is changing the way we develop software to allows quick (continuous) delivery of business value. Why is it difficult to achieve and what are the challenges which need to be faced? Inspired by a Continuous Delivery conference in the Netherlands and […]