The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Spring4D’ Category

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Spring4D How to correctly assign NULL to a Nullable type?

Posted by jpluimers on 2018/12/19

Since I tend to forget this: [WayBack] Spring4D How to correctly assign NULL to a Nullable type? this is correct? fDateTime = Null; or this? fDateTime := nil; – Jacek Laskowski – Google+

The preferred way is fDateTime := nil.

This is possible because of [WayBack] Delphi sorcery: How to create an operator overload that only accepts nil using a reference type (in this case interface) so no non-nil pointers can be passed:

type
  Nullable<T> = record
  strict private type
    Null = interface end;
  public
    class operator Implicit(const value: Null): Nullable<T>;
  end;

–jeroen

Posted in Delphi, Development, Software Development, Spring4D | 2 Comments »

Spring4D Conference

Posted by jpluimers on 2018/12/19

Do not forget the early bird sales ends soon for the Spring4D European Conference 2018 – Bergamo Italy, right before Easter 2019.

Both the original author and the current maintainer will be there, and it will be a great place to socialize with fellow Spring4D users.

Buy tickets: [WayBack] Spring4D Conference

Via:

–jeroen

Posted in Delphi, Development, Software Development, Spring4D | Leave a Comment »

Spring4D, Extended floating point values and Mac OS X: the 16-byte stack alignment

Posted by jpluimers on 2016/12/13

Just a few quick notes after solving a stack corruption issue in Spring4D on Mac OS X involving the Extended data type and 16-bit Stack Alignment:

–jeroen

Posted in Algorithms, Delphi, Delphi XE4, Delphi XE5, Development, Floating point handling, Software Development, Spring4D | Leave a Comment »

Delphi anonymous method formatting thread going into the direction of functional programming – via: Markus Joos – Google+

Posted by jpluimers on 2015/03/03

Markus Joos started a nice G+ thread on anonymous method formatting which ended up into a discussion of functional programming and a peek into what Spring4D 1.3 can offer.

Note you might need to be part of the G+ Delphi Developers Community to read the thread.

–jeroen

Posted in Delphi, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Development, Software Development, Spring4D | Leave a Comment »

Continua CI Version 1.5 has been released (build 1.5.0.268); smaller, faster, loads of new features; Spring4D XE7 builds automated

Posted by jpluimers on 2014/09/10

I’m really happy that Continua CI Version 1.5 got released a few hours ago as per the Continua 1.5 released announcement.

It means that my Build Automation Session during the Dutch Delphi 2014 conference tomorrow can range from:

  • build using MSbuild from the command-line
  • build batch files
  • build using a custom front-end
  • build using Continuous Integration front-end

The session will explain lots of details about what various Delphi versions do, how to cope with dependencies, etc.

In the mean time, the preliminary Spring4D work on build automation is visible to guest users. Those include building for Delphi XE7 for the Win32, Win64 and OSX32 targets (in Debug and Release mode).

There is a huge list of Version 1.5 History @ Continua CI changes, which is partially quoted below.

For me these are the most important:

  • in-place upgrade without having to do any changes on my part
  • truckload of new features (including Delphi XE7, NuGet and Fake F# support)
  • smaller
  • faster

(as a side note: also FinalBuilder 7 was recently updated to support Delphi XE7)

In general, I like Continua CI a lot, most importantly because:

  • it is very stable
  • it has native support for a wide range of software development tools (including Delphi, Visual Studio and much more)
  • supports DVCS (like Git/Mercurial) just as you expect it to
  • if something breaks, you get a response and fix very very soon

You can download the new version through the Downloads @ Continua CI. These are the direct links:

For a breaking issue, there has been an important bug fix, so the new downloads are:

I created an RSS feed through Page2RSS to watch any new releases of Continua CI.

Parts of the changes in 1.5.0.268 1.5.0.278

The full list of changes are at Version 1.5 History @ Continua CI.

Be sure to also look at the official Continua 1.5 released announcement.

Read the rest of this entry »

Posted in .NET, Continua CI, Continuous Integration, Delphi, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Development, Software Development, Spring4D | 5 Comments »

Spring4D: How is the GlobalContainer intended to be used? Are there important don’ts? – Google Groups

Posted by jpluimers on 2014/08/04

Short answer: do not use the GlobalContainer.

Long answers are in this Spring4D thread: How is the GlobalContainer intended to be used? Are there important don’ts? – Google Groups.

Especially read this message by Stefan Glienke that shows you to setup your main program without using GlobalContainer at all.

Note that this doesn’t mean you should avoid a container at all.

Background information:

–jeroen

Posted in Delphi, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE5, Delphi XE6, Development, Software Development, Spring4D | 5 Comments »

Call for help: Spring4D and Delphi MultiCast events: working for Win32, Win64 and Mac OS X x64, but Android/iOS ARM help needed.

Posted by jpluimers on 2014/04/22

Years after Allen Bauer and a few others wrote about Delphi MultiCast events, the Spring4D framework now supports MultiCast events on 3 platforms:

  • Win32
  • Win64
  • Mac OS x86

Depending on the platform, the minimum required Delphi version is this (the develop branch builds in Delphi XE6):

  • Win32: Delphi 2010 and up.
  • Win64: Delphi XE2 and up.
  • MacOSX: Delphi XE2 and up.

There are plans for support on Mobile platforms, and Spring4D needs help with that:

  • The Intel implementation is written in Assembly, and fast.
  • The Arm compiler does not allow Assembly language for various reasons.

So there is a need for an ARM solution not based on assembly in the Delphi code, preferably as cross-platform as possible. Read the rest of this entry »

Posted in Delphi, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Development, QC, Software Development, Spring4D | 1 Comment »

knowledge worker tip: adding a Google Group to #Feedly using one of its RSS feeds

Posted by jpluimers on 2014/04/15

Today I learned that each Google Group has RSS and ATOM feeds. That allows you to add them to Feedly (a great online RSS reader that won a lot of market share when Google Reader got ditched).

This is how you do it (I’m using the Spring4D group as an example).

  1. Go to the group page https://groups.google.com/forum/#!forum/spring4d
  2. On the right side, click on “About” which brings you to https://groups.google.com/forum/#!aboutgroup/spring4d
  3. Copy any of the RSS or ATOM links and add it to Feedly.

–jeroen

Posted in Delphi, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Development, Google, GoogleGroups, Power User, Software Development, Spring4D | 7 Comments »

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