Par: Tim DelChiaro
Résumé: Building multi-tier applications without using a COM interface
Building Multi-Tier Applications without Using a COM Interface
For a long time Delphi has included a technology for building multi-tier database applications. Formerly known as MIDAS and later as DataSnap, Delphi's multi-tier technology was based on COM, even if the remote connectivity could be provided by sockets and HTTP, instead of DCOM. For some time, it even supported CORBA--a slightly modified version that provided SOAP connectivity.
Delphi 2009 still includes the classic DataSnap, but provides a new remoting and multi-tier technology as well. It is partially based on the dbExpress architecture. This new technology is still called DataSnap, but to avoid confusion is generally referenced as “DataSnap 2009”.
Learn more about DataSnap in Delphi 2009 and CodeGear RAD Studio 2009 in this white paper.
Download the paper
This white paper has been written for Embarcadero Technologies by Marco Cantù, author of the best-selling series Mastering Delphi. The content has been extracted from his latest book “Delphi 2009 Handbook”, http://www.marcocantu.com/dh2009. You can read about Marco on his blog (http://blog.marcocantu.com) and reach him at his email address email@example.com.
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Réponse serveur de: ETNASC02