Synopse Open Source

2013-01-18

Register any class for proper TObjectList serialization

By AB4327-GANDI, 2013-01-18. Open Source › mORMot Framework

Up to now, the only way of directly serializing a list of class instances as a JSON array was to use a TCollection.

In fact, objects are not alone, just like mORMots tend to have a nice family:

You have either to let your collection class inherit from the new TInterfaceCollection type, either call the TJSONSerializer.RegisterCollectionForJSON() method.
Could sounds a bit over-sized for just a list of objects.

We have just added a new feature, adding a new "ClassName":"TMyObject" field in the JSON object serialization, and allowing it to create the proper class instance on both transmission sides, therefore able to properly let TObjectList be serialized and un-serialized.

Register any TCollection type for proper JSON serialization

By AB4327-GANDI, 2013-01-18. Open Source › mORMot Framework

Due to the current implementation pattern of the TCollection type in Delphi, it was not possible to implement directly this kind of parameter.

In fact, the TCollection constructor is defined as such:

 constructor Create(ItemClass: TCollectionItemClass);

And, on the server side, we do not know which kind of TCollectionItemClass is to be passed. Therefore, the TServiceFactoryServer is unable to properly instantiate the object instances, supplying the expected item class.

The framework propose two potential solutions:

You can let your collection class inherit from the new TInterfaceCollection type;
You can call the TJSONSerializer.RegisterCollectionForJSON() method to register the collection type and its associated item class.

First solution has already been detailed in this blog.
We will now describe the second (and new) way.

2013-01-05

Domain-Driven-Design and mORMot

By AB4327-GANDI, 2013-01-05. Open Source › mORMot Framework

Implementing Domain-Driven-Design (DDD) is one goal of our mORMot framework.

We already presented this particular n-Tier architecture.

It is now time to enter deeper into the material, provide some definition and reference.
You can also search the web for reference, or look at the official web site.
A general presentation of the corresponding concepts, in the .NET world, was used as reference of this blog entry.

Stay tuned, and ride the mORMot!

2012-12-31

Enhance existing projects with mORMot

By AB4327-GANDI, 2012-12-31. Open Source › mORMot Framework

Even if mORMot will be more easily used in a project designed from scratch, it fits very well the purpose of evolving any existing Delphi project, or even creating the server side part of an AJAX application.

One benefit of such a framework is to facilitate the transition from a Client-Server architecture to a N-Tier layered pattern.

2012-12-20

How to make it fast?

By AB4327-GANDI, 2012-12-20. Pascal Programming

On our forum, a clever question was posted about publishing some enhanced RTL functions for newer versions of Delphi - as we did for Delphi 7 and 2007.

I was looking for a faster IntToStr implementation and discovered SynCommons.pas.
(....)
That's really too bad, SynCommons.pas really does contain some seriously fast stuff, people would greatly benefit from it if it was made general-purpose.

In fact, it would not be enough to change the RTL function implementations.
IMHO, to write something scalable, you need to get rid of such functions.

2012-11-30

Transmission between mORMots

By AB4327-GANDI, 2012-11-30. Open Source › mORMot Framework

Little mORMots have a very efficient transmission protocol, in their mountains...

Most mORMots are highly social and use loud whistles to communicate with one another, especially when alarmed.
As stated by Wikipedia

In a comment of the already quoted blog article about DataSnap performance issues, Tom asked this interesting question about mORMot, after I presented how we like to use http.sys kernel-mode server to achieve best performance possible over HTTP:

What about TCP communication, http is not the only Internet protocol. Protobuf, Thrift, MsgPack, BSON etc, is binary protocol and http i big overhead in some systems.
Did http.sys enable use of tcp/ip socket protocol?

2012-11-28

Synopse PDF Engine 1.18

By AB4327-GANDI, 2012-11-28. Open Source › Synopse PDF engine

Our SynPdf library was released as part of every mORMot version. But the stand-alone .zip was still in 1.15 revision. I have updated it, and now it reflects the latest version from our source code repository (i.e. 1.18). Open Source, working from Delphi 5 up to XE3. Thanks to nice proposals - like […]

Breaking change in mORmot: SQLite3.pas units renamed mORMot.pas

By AB4327-GANDI, 2012-11-28. Open Source › mORMot Framework

All former SQLite3\SQLite3*.pas units have been renamed to SQLite3\mORMot*.pas to match the database-agnostic scheme of the mORMot framework. This is a major break change, so all your "uses" clauses in your code is to be change to follow the new naming. See this commit, which includes […]