Author: Marie-Sophie Landrieu-Yvert

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• Product Owner • Marie-Sophie Landrieu-Yvert has joined the 4D Product team as a Product Owner in 2017. As a Product Owner, she is in charge of writing the user stories then translating it to functional specifications. Her role is also to make sure that the feature implementation delivered is meeting the customer need.Marie-Sophie graduated from the ESIGELEC Engineering School and began her career as an engineer at IBM in 1995. She participated on various projects (maintenance or build projects) and worked as a Cobol developer. Then she worked as an UML designer and Java developer. Lately her main roles were analyzing and writing functional requirements, coordinate business and development teams.
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Optimize your ORDA code with requests logging

Ever need to analyze the traffic of your ORDA requests between a client and the 4D server? Sometimes it may take a while to receive a response from the server, which can make you wonder if it’s due to network traffic or to an unoptimized request you’ve written! Thankfully, 4D v17 R6 makes it possible to determine the likely reason(s) for this latency with the new ORDA methods available on the ds object. They’re not only debugging functions, they also allow you to optimize your ORDA code with a better understanding of the sent requests.

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More sophisticated ORDA queries with formulas

In 4D v17 R6, ORDA queries are becoming increasingly more powerful and concise. This blog post is for those of you who need more sophisticated search criteria than just a simple syntax like “name = Smith‘”. With this R-release, you can use any project method or 4D expression in the query() member method by using formulas.

What better way to explain this feature than with an example? Let’s dig into the details.

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Write generic code with the latest ORDA features

ORDA has its share of features with 4D v17 R5, including various ways to write generic code.

Writing generic code allows you to centralize your code to facilitate updating it. Not only does it enable you to write reusable code that can be used in different use cases, freeing you from having to reinvent the wheel again and again, it also lets you add extra functionalities on top of what you’ve already done.

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ORDA member methods to get the structure information

“How can I know the dataClass of an entity? I need it to write generic methods“. “I need information about a field in a dataClass: what is its type? Is it indexed? Is it unique?“. These are the kinds of questions we’ve heard you asking on the forum. 4D v17 R5 provides the answers: introducing new ORDA member methods to provide useful information about your database. Keep reading, because you’ll appreciate the benefits of reducing the size of your code and making it reusable and easy to maintain!

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Add values to your generic ORDA queries

By now you’ve surely noticed that ORDA queries are not only light and readable, they also make it easy to navigate through the entire data model using object-oriented concepts! In this blog post, we showed you how to write powerful and easy-to-maintain queries. One of the methods recommended was providing the query and values separately via placeholders. 4D v17 R5 takes placeholders a step further by allowing you to write generic ORDA queries: say hello to named placeholders for values!

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Improved performance: up to 8xs faster (no, that’s not a typo)!

Scalability is one of our primary concerns and 4D v17 R5 brings good news in this area, particularly for those with a heavy process load on their 4D Server. You’ll notice significant improved performance speeds when remote clients (one, two, or even hundreds) are connected to your server.

4D’s internal architecture has been enhanced and now processor usage is fully optimizedopens in a new tab) in preemptive mode and simultaneous read/write accesses on the same table. As a result, you could see performance 4 to 8xs faster!

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