Synopse Open Source

2014-08-15

Background Backup of a SQLite3 Database

By AB4327-GANDI, 2014-08-15. Open Source › mORMot Framework

The primary purpose of any software Backup is to recover data after its loss, be it by data deletion or corruption.
Data loss can be a common experience of computer users. A 2008 survey found that 66% of respondents had lost files on their home PC, as Wikipedia quotes.

As a consequence, for any professional use of data, like in our mORMot server, a backup policy is mandatory.

We just introduced officially the SQLite3 Backup API to our low-level SynSQLite3.pas unit, and wrote dedicated methods to make background backup of a running mORMot server easy and safe, without any noticeable performance penalty.

2014-08-11

Cross-Platform mORMot Clients - Smart Mobile Studio

By AB4327-GANDI, 2014-08-11. Open Source › mORMot Framework

Current version of the main framework units target only Win32 and Win64 systems.

It allows to make easy self-hosting of mORMot servers for local business applications in any corporation, or pay cheap hosting in the Cloud, since mORMot CPU and RAM expectations are much lower than a regular IIS-WCF-MSSQL-.Net stack.
But in a Service-Oriented Architecture (SOA), you would probably need to create clients for platforms outside the Windows world, especially mobile devices.

A set of cross-platform client units is therefore available in the CrossPlatform sub-folder of the source code repository. It allows writing any client in modern object pascal language, for:

Any version of Delphi, on any platform (Mac OSX, or any mobile supported devices);
FreePascal Compiler 2.7.1;
Smart Mobile Studio 2.1, to create AJAX or mobile applications (via PhoneGap, if needed).

This series of articles will introduce you to mORMot's Cross-Platform abilities:

Any feedback is welcome in our forum, as usual!

Cross-Platform mORMot Clients - Delphi / FreePascal

By AB4327-GANDI, 2014-08-11. Open Source › mORMot Framework

Current version of the main framework units target only Win32 and Win64 systems.

It allows to make easy self-hosting of mORMot servers for local business applications in any corporation, or pay cheap hosting in the Cloud, since mORMot CPU and RAM expectations are much lower than a regular IIS-WCF-MSSQL-.Net stack.
But in a Service-Oriented Architecture (SOA), you would probably need to create clients for platforms outside the Windows world, especially mobile devices.

A set of cross-platform client units is therefore available in the CrossPlatform sub-folder of the source code repository. It allows writing any client in modern object pascal language, for:

Any version of Delphi, on any platform (Mac OSX, or any mobile supported devices);
FreePascal Compiler 2.7.1;
Smart Mobile Studio 2.1, to create AJAX or mobile applications (via PhoneGap, if needed).

This series of articles will introduce you to mORMot's Cross-Platform abilities:

Any feedback is welcome in our forum, as usual!

Cross-Platform mORMot Clients - Generating Code Wrappers

By AB4327-GANDI, 2014-08-11. Open Source › mORMot Framework

Current version of the main framework units target only Win32 and Win64 systems.

It allows to make easy self-hosting of mORMot servers for local business applications in any corporation, or pay cheap hosting in the Cloud, since mORMot CPU and RAM expectations are much lower than a regular IIS-WCF-MSSQL-.Net stack.
But in a Service-Oriented Architecture (SOA), you would probably need to create clients for platforms outside the Windows world, especially mobile devices.

A set of cross-platform client units is therefore available in the CrossPlatform sub-folder of the source code repository. It allows writing any client in modern object pascal language, for:

Any version of Delphi, on any platform (Mac OSX, or any mobile supported devices);
FreePascal Compiler 2.7.1;
Smart Mobile Studio 2.1, to create AJAX or mobile applications (via PhoneGap, if needed).

This series of articles will introduce you to mORMot's Cross-Platform abilities:

Any feedback is welcome in our forum, as usual!

Cross-Platform mORMot Clients - Units and Platforms

By AB4327-GANDI, 2014-08-11. Open Source › mORMot Framework

Current version of the main framework units target only Win32 and Win64 systems.

It allows to make easy self-hosting of mORMot servers for local business applications in any corporation, or pay cheap hosting in the Cloud, since mORMot CPU and RAM expectations are much lower than a regular IIS-WCF-MSSQL-.Net stack.
But in a Service-Oriented Architecture (SOA), you would probably need to create clients for platforms outside the Windows world, especially mobile devices.

A set of cross-platform client units is therefore available in the CrossPlatform sub-folder of the source code repository. It allows writing any client in modern object pascal language, for:

Any version of Delphi, on any platform (Mac OSX, or any mobile supported devices);
FreePascal Compiler 2.7.1;
Smart Mobile Studio 2.1, to create AJAX or mobile applications (via PhoneGap, if needed).

This series of articles will introduce you to mORMot's Cross-Platform abilities:

Any feedback is welcome in our forum, as usual!

2014-08-05

Returning content as XML

By AB4327-GANDI, 2014-08-05. Open Source › mORMot Framework

By default, interface-based services of a mORMot server will always return a JSON array (or a JSON object, if TServiceFactoryServer.ResultAsJSONObject is true).
With some kind of clients (e.g. if they are made by a third party), it could be useful to return XML content instead.

Your mORMot server is able to let its interface-based services return XML context instead, or in addition to the default JSON format.

2014-07-12

Static class variables are just global variables in disguise

By AB4327-GANDI, 2014-07-12. Pascal Programming

Cape Cod Gunny just wrote a blog article about how to replace a global variable by a static class instance.

But I had to react!
Using such static declaration is just another way of creating a global variable.
This is just a global variable in disguise.
In fact, the generated asm will be just like a global variable!

It encapsulates the global declaration within a class name space, but it is still IMHO a very wrong design.
I've seen so many C# or Java code which used such a pattern (there is no global variable in those languages), and it has the same disadvantages as global variables.
Just like the singleton syndrome,
Code is just not re-entrant nor thread-safe.
Nightmare to debug and let evolve.

2014-07-04

Website of the day

By AB4327-GANDI, 2014-07-04. Open Source

Just wanted to share some awesome SOA revolutionary idea, on 4th of July... You should take a look at http://devnull-as-a-service.com ! DAAS rocks! We will write certainly a native mORMot provider for this great data provider. This is another great Open Source project (full code is included).