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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ORDA: an up-to-date datastore without restarting

We’re thrilled to announce that 4D v18 R3 includes an enhancement that will have a huge impact on the developer’s experience. A feature many of you have requested, and 4D delivers!

When you work in 4D standalone mode during the development phase (writing and testing your code), you’re no longer required to restart your database in order to have an up-to-date datastore (ds) when the structure is updated!

Now you don’t need to restart the database each time you need a new attribute or a new table in your code! It’s all automatic!

When you call the ds command, you get an up-to-date datastore object. This means that several versions of this datastore object are handled at the same time … depending on when you updated your structure … without breaking running processes.

If you work in client / server mode, this works fine for code running on the 4D Server.

For remote clients, you simply need to restart the client requiring the structure’s update.

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Monitor 4D Server activity with this new tool

Many features have been released to help you manage your 4D Server activity. 4D v18 R3 provides 4D administrators another monitoring tool for 4D Server activity. A tool to get all operations executing beyond a specified time, as well as relevant details about the involved tables, fields, and clients.
This feature not only makes all the above is possible, it also makes it easier to optimize your code, identify problems, and liberate your 4D Server resources.

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Objects Corner: easy sharing & other good news

How many times have you gotten the “Not supported value type in a shared object” error when trying to put an object into a shared object?

What did you do? Write longer code to turn your innocent object into a shared one, perhaps iterating over all of its properties?

How about transferring a shared object from one shared group to another?

 

An interesting thing about objects: you already know they can be used as a hash map (a key/value system), but what about gettings all the keys or all the values with a single line of code?

Keep reading, because 4D v18 R3 is out and brings good news!

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ORDA: Breaking news for entity selection methods

When it comes to ORDA, 4D v18 R3 is full of good news! New member methods are at your disposal to further enhance your coding experience.

For starters, extracting data from an entity selection has been greatly enriched allowing you to build a fully customized collection with your entity selection data.

In addition, we’re providing you a way to indicate to an entity selection that its data needs to be refreshed from the server immediately, invalidating cached data.

Interested in some details? Keep reading, everything you need to know is below. 

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Ease your developer’s life with list boxes

Our main objective is to make developers’ lives easier, day after day, and list boxes are one 4D’s most used and powerful form objects that serve this purpose. We all know that list boxes trigger many events, that’s why in 4D v18 R2 we’ve enhanced the Form event command to return even more information when list box events are triggered.
 
Want to let go of your old tricky code for guessing which row, column, or header you clicked or put your mouse on? Let us show you a smoother and smarter way to do it!

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Multiple 4D data sources, interested?

We’ve got an exciting new feature to announce in 4D v18 and the title may have already given you a hint!

This feature opens new possibilities for client/server work. Rather than being limited to the current database and requiring a permanent network connection, an application in 4D v18 can get data from another, remote 4D database that’s exposed on a 4D server!

A lot of options become available thanks to this feature. For example, you could organize your applications to work offline and only synchronize local data when remote data is reachable. Or you could consider publishing your data on multiple servers and switching from one to the other as necessary. Another option could be splitting your data model across different databases (e.g. local data, international data). What about having your data distributed in different places yet still accessible through a single 4D client code (project methods and form objects)? All of these scenarios are now possible and this blog post tells you how!

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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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