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2014, Friday April 18

Introducing mORMot's architecture and design principles

We have just released a set of slides introducing 

  • ORM, SOA, REST, JSON, MVC, MVVM, SOLID, Mocks/Stubs, Domain-Driven Design concepts with Delphi, 
  • and showing some sample code using our Open Source mORMot framework.

You can follow the public link on Google Drive!

This is a great opportunity to discovers some patterns you may not be familiar with, and find out how mORMot try to implement them.
This set of slides may be less intimidating than our huge documentation - do not be terrified by our 1400 pages Software Architecture Design pdf!

Feedback is welcome on our forum, as usual.

2014, Monday March 3

ORM enhanced for BATCH insert

We just committed some nice features to the ORM kernel, and SynDB* classes of our mORMot framework.

During BATCH insertion, the ORM is able to generate some optimized SQL statements, depending on the target database, to send several rows of data at once.
It induces a noticeable speed increase when saving several objects into an external database.

This feature is available for SQlite3 (3.7.11 and later), MySQL, PostgreSQL, MS SQL Server (2008 and up), Oracle, Firebird and NexusDB.
Since it is working at SQL level, it is available for all supported access libraries, e.g. ODBC, OleDB, Zeos/ZDBC, UniDAC, FireDAC.
It means that even properties not implementing array binding (like OleDB, Zeos or UniDAC) are able to have a huge boost at data insertion, ready to compete with the (until now) more optimized libraries.

Continue reading...

2013, Friday June 21

SynPDF now generates (much) smaller PDF file size

We have reduced PDF generated file size for all version of the PDF format, by trimming any uneeded space in the generated content.

We introduced a new optional PDFGeneratePDF15File property for even better compression, using advanced features (Object Streams and Cross-Reference Streams) of the PDF 1.5 format.
This PDF 1.5 format needs Acrobot 6.0 and up to open them.
Which should be the case on your computer.

Can be up to 70% smaller for a pdf with a lot of pages with simple textual context.

I suspect our library is able to generate the smallest file size possible, even in regard to other alternative libraries.
Open Source can be great, can't it?

Continue reading...

2013, Wednesday June 19

SynPDF now implements 40 bit and 128 bit security

The trunk version of our Open Source SynPdf library now features encryption using 40 bit or 128 bit key size.

This is a long awaiting feature, and sounds working just fine from my tests.
Speed has been optimized (as usual with our libraries), as a consequence encrypting the content will only be slightly slower.

Continue reading...

2013, Thursday March 7

64 bit compatibility of mORMot units

I'm happy to announce that mORMot units are now compiling and working great in 64 bit mode, under Windows.
Need a Delphi XE2/XE3 compiler, of course!

ORM and services are now available in Win64, on both client and server sides.
Low-level x64 assembler stubs have been created, tested and optimized.
UI part is also available... that is grid display, reporting (with pdf export and display anti-aliasing), ribbon auto-generation, SynTaskDialog, i18n... the main SynFile demo just works great!

Overall impression is very positive, and speed is comparable to 32 bit version (only 10-15% slower).

Speed decrease seems to be mostly due to doubled pointer size, and some less optimized part of the official Delphi RTL.
But since mORMot core uses its own set of functions (e.g. for JSON serialization, RTTI support or interface calls or stubbing), we were able to release the whole 64 bit power of your hardware.

Delphi 64 bit compiler sounds stable and efficient. Even when working at low level, with assembler stubs.
Generated code sounds more optimized than the one emitted by FreePascalCompiler - and RTL is very close to 32 bit mode.
Overall, VCL conversion worked as easily than a simple re-build.
Embarcadero's people did a great job for VCL Win64 support, here!

Continue reading...

2013, Tuesday February 12

Introducing ZEOS, UniDAC, NexusDB, BDE, any TDataset to SynDB and mORMot's ORM

Up to now, our SynDB database classes were handling ODBC, OleDB providers and direct Oracle or SQLite3 connection.

We have added a DB.pas based layer, ready to be used with UniDAC, NexusDB, or the BDE.
Any other TDataset based component is ready to be interfaced, including UIB, AnyDAC or DBExpress.

The ZEOS library (in its latest 7.0.3 stable version, which works from Delphi 7 up to XE3) has also been interfaced, but without the TDataset/DB.pas layer: our SynDBZEOS.pas unit calls the ZDBC layer, which is not tied to DB.pas nor its RAD components, and is therefore faster. By the way, it will work also with the Starter edition of Delphi (which does not include the DB components) - just like the other "regular" SynDB classes.

This is a work in progress, any testing and feedback is welcome!
We had to circumvent some particularities of the libraries, but I guess we have something interesting.

A dedicated "SynDBDataset" sub-folder has been created in the repository, to contain all SynDBDataset.pas-based database providers.
SynDBNexusDB.pas unit has been moved within this sub-folder, as SynDBUniDAC.pas + SynDBBDE.pas units have been added.
SynDBZeos.pas has a direct access to the ZDBC layer, so is not part of the "SynDBDataset" sub-folder.

Here is some benchmark, mainly about Oracle and SQlite3 database access.
Of course, our direct SynDBOracle / SynDBSQLite3 layers are the fastest around, and we can see that ZDBC layer is sometimes more efficient than the TDataset components.

Continue reading...

2013, Sunday January 20

Adding JavaScript server-side support to mORMot

A long-time mORMot user and contributor just made a proposal on our forums.
He did use mORMot classes to integrate a SpiderMonkey JavaScript engine to our very fast and scaling HTTP server, including our optimized JSON serialization layer.

Today, he sent to me some of his source code, which sounds ready to be included in the main trunk!

This is a great contribution, and Pavel's goal is nothing less than offering
Delphi based, FAST multithreaded server with ORM and node.js modules compatible.

Continue reading...

2012, Monday December 31

Enhance existing projects with mORMot

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.

Continue reading...

2012, Wednesday November 28

Synopse PDF Engine 1.18

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 those from Sinasa - conversion engine from metafile content is pretty complete.
Font fallback has been introduced for glyphs not available in the current font, and some issues have been identified and fixed.
SynPdf unit can now link to standard ZLib.pas unit if you want to use it stand-alone and do not need our faster SynZip.pas + deflate.obj + trees.obj.

Forum and feedback are welcome on our forum.
Direct download link is available in our Download section.

2012, Sunday October 28

SynDBOracle: Open Source native Oracle access

(this is an update of the article published in 2011/07)

For our mORMot framework, and in completion to our SynOleDB unit, we added a new Open Source unit, named SynDBOracle. It allows direct access to any remote Oracle server, using the Oracle Call Interface.

Oracle Call Interface (OCI) is the most comprehensive, high performance, native unmanaged interface to the Oracle Database that exposes the full power of the Oracle Database. We wrote a direct call of the oci.dll library, using our DB abstraction classes introduced for SynOleDB.

We tried to implement all best-practice patterns detailed in the official Building High Performance Drivers for Oracle document

Resulting speed is quite impressive: for all requests, SynDBOracle is 3 to 5 times faster than a SynOleDB connection using the native OleDB Provider supplied by Oracle. We noted also that our implementation is 10 times faster than the one provided with ZEOS/ZDBC, which is far from optimized.

You can use the latest version of the Oracle Instant Client provided by Oracle - see this link - which allows you to run your applications without installing the standard (huge) Oracle client or having an ORACLE_HOME. Just deliver the dll files in the same directory than your application, and it will work.

Continue reading...

2012, Monday September 10

Don't be confused by our little mORMot !

We got some interesting feedback in reddit.

I looked at your website and it is a bit confusing to be honest. After browsing for five minutes I still can't figure out what it is that this framework is supposed to do. It seems like a strange mish mash of different unrelated libraries. You've got some client-server stuff. Some SQLite stuff, which doesn't really fit with client server stuff as it is not a server database. Then there is some PDF stuff.
What is the big picture? What does this actually do?

Such confusion does make sense. Our web site is split into forum, blog, source-code repository and tickets, some wiki pages.

Here are some points of orientation.

Continue reading...

2012, Sunday September 9

Synopse mORMot framework 1.17

Our Open Source mORMot framework is now available in revision 1.17.

The main new features are the following:

We have some very exciting features on the road-map for the next 1.18 release, like direct Event/CallBacks handling.
Stay tuned!

Continue reading...

2012, Tuesday July 24

SQLite3-powered, not SQLite3-limited

Our downloadable documentation has been enhanced, and contains now a description about the main feature of 1.15 version, i.e. "database agnosticism".

The core database of our mORMot framework uses the SQLite3 library, which is a Free, Secure, Zero-Configuration, Server-less, Single Stable Cross-Platform Database File database engine.

As stated below, you can use any other database access layer, if you wish.
A fast in-memory engine (TObjectList-based) is included, and can be used instead or together with the SQLite3 engine.
Or you may be able to access any remote database, and use one or more OleDB, ODBC, ZDBCTDataSet, (or direct Oracle) connections to store your precious ORM objects.
The SQlite3 will be used as the main SQL engine, able to JOIN all those tables, thanks to its Virtual Table unique feature.

(article updated after removal of the TSQLRecordExternal class type for revision 1.17 - note also that BATCH process is now directly supported by the framework and converted to bound array parameters if available)

Continue reading...

2012, Tuesday July 10

Better Unicode support in Reports and PDF generation

By default, both GDI+ anti-aliased drawing and PDF file generation using our libraries did lack of font-fallback implementation.

If some of the characters in a string are not supported in a requested font, they were drawn as square symbols on the GDI+ canvas or the PDF content.

The font-fallback mechanism implemented will use a third-party font (Arial Unicode MS by default, which is installed with Microsoft Office), for any glyph that are missing when rendering the content. Of course, for PDF generation, you are able to embed the font within the generated file (this is by the way mandatory for PDF/A-1 format).

Both of these new features are handled by the SQlite3Pages unit, i.e. for report anti-aliased drawing preview and PDF generation.

By the way, the TGDIPages class itself (the one used for report generation from code) now handles by default Unicode text, even with Delphi versions prior to 2009 (via the SynUnicode string type, which maps WideString before Delphi 2009, then UnicodeString starting with Delphi 2009). Does make sense with such a font-fallback mechanism.

Continue reading...

2012, Monday May 28

Synopse mORMot Framework 1.16

Our Open Source mORMot framework is now available in revision 1.16.

The main new features are the following:

Thanks to its features, mORMot is now able to provide a stand-alone Domain-Driven Design framework for Delphi.

Quite a long and nice road for a little mORMot, and more to come!

Continue reading...

2011, Sunday September 25

Synopse SQLite3/mORMot framework 1.15

Our Client-Server ORM framework is now available in revision 1.15.

This is a major upgrade of the framework:

  • It is now called mORMot - so please update your T-Shirts or coffee cups ;)
  • It is able to use any Database engine back-end - in fact, it is SQLite3 powered, not SQLite3 limited;
  • In particular, direct OleDB and native Oracle have been implemented;
  • It makes use of the genuine SQlite3 Virtual Table mechanism everywhere to allow mixed access to any database engine;
  • New TModTime / TCreateTime kind of fields;
  • Enhanced stability, speed and multi-thread implementation;
  • Methods and functions have been enhanced, according to user feedback (thanks you all for your interest and forum posts!);
  • Extended documentation (more than 700 pdf pages), with new diagrams and a lot of new content;
  • New associated tools, like LogViewer or SynDBExplorer;
  • The SQLite3 core can now be used without our ORM - it has been updated to the latest 3.7.8 version;
  • Open Source (under GPL/LGPL/MPL license), running from Delphi 6 up to XE2.

Continue reading...

Synopse PDF Engine 1.15

For our PDF generation Open-Source library, this is a small fix update.

It can now be compiled under Delphi XE2.
But it's still working from all previous IDE versions, starting with Delphi 5, and still 100% free - released under GPL/LGPL/MPL license, choice is yours.

Continue reading...

2011, Thursday September 1

DataSnap-like Client-Server JSON RESTful Services in Delphi 6-XE5

Article update:
The server side call back signature changed since this article was first published in 2010. 
Please refer to the documentation or this forum article and associated commit.
The article was totally rewritten to reflect the enhancements.
And do not forget to see mORMot's interface-based services!

Note that the main difference with previous implementation is the signature of the service implementation event, which should be now exactly:
procedure MyService(Ctxt: TSQLRestServerURIContext);
(note that there is one unique class parameter, with no var specifier)
Please update your code if you are using method-based services!

You certainly knows about the new DataSnap Client-Server features, based on JSON, introduced in Delphi 2010. … plications

We added such communication in our mORmot Framework, in a KISS (i.e. simple) way: no expert, no new unit or new class. Just add a published method Server-side, then use easy functions about JSON or URL-parameters to get the request encoded and decoded as expected, on Client-side.

Continue reading...

2011, Wednesday August 10

Framework documentation updated for revision 1.15

The framework documentation was just updated.

The general organization of the SAD document (which is the one to be read in all cases) has been refreshed, and is now separated in smaller chapters.

The new official name has been changed into "Synopse SQLite3/mORMot framework"...

Continue reading...

2011, Monday July 25

Close future of the framework: database agnosticism

Our ORM RESTful Framework is about to access any available database engine.

It will probably change its name (since it won't use only SQlite3 as database), to become mORMot - could be an acronym for "Manage Object Relational Mapping Over Tables", or whatever you may think of...

We'll still rely on SQLite3 on the server, but a dedicated mechanism will allow to access via OleDB any remote database, and mix those tables content with the native ORM tables of the framework. A flexible Virtual Tables and column mapping will allow any possible architecture: either a new project in pure ORM, either a project relying on an existing database with its own table layout.

Continue reading...

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