The Joy Of 6
What''''s In The New Version Of Delphi?
This is a UK BUG MasterClass to be held on 7th August, 2001 in Hammersmith, England.
This Masterclass will look at the mass of new features added in Delphi 6 (released May 2001), demonstrating as many of them as time permits. Borland are emphasising certain key areas in this release, primarily:
- e-Business with the ability to write and access Web Services and Web applications.
- Enterprise development with support for XML, SOAP and enhanced CORBA support.
- Cross-platform development at the source level with CLX and dbExpress.
We will look into these areas as well as all the other improvements made since Delphi 5 (released August 1999).
Below is a bullet point agenda of what we will try and cover.
Note that this agenda is based on a pre-release version of the product and so is subject to change.
BizSnapEnterprise Edition only
"Full Business-to-Business Web Services Integration"
- Ability to create Web Services in Delphi
- Invokable interfaces are interfaces with RTTI generated on them for remotable invocation.
- Remote interfaced objects (RIOs) implement invokable interfaces in Web Services.
- THTTPSoapDispatcher picks up SOAP messages and dispatches them accordingly.
- THTTPSoapPascalInvoker turns SOAP messages into direct calls to the invokable interface''''s methods.
- TWSDLHTMLPublish publishes a WSDL document describing the service to non-Delphi clients.
- Ability to connect to Web Services from Delphi client applications
- Non-Delphi Web Services are accessed by importing their WSDL documents to generate interface definitions.
- THTTPRIO acts as a stand-in for the Web Service RIO.
- You call the RIO''''s interface methods through the THTTPRIO.
- XML Document Manipulation
- TXMLDocument represents an XML document.
- It allows you to read an XML document, edit it save the changes back again.
- XML Data Binding Wizard can read in schema files and generate code that represents the document with a natural and intuitive property-based programming model.
- XML data bindings replace the complex coding required to use the XML Document Object Model (DOM) interfaces.
- Supports the W3C DOM Level 2 specification with platform-independent and vendor-independent interfaces.
- Makes use of any compliant XML parsers installed one the machine.
- XML Transform components are provided to allow XML documents to be used in place of database servers.
- The components transform between client dataset data packets and XML.
- An XML Mapper utility is provided which can read in schema files and allows you to set up the transformations.
WebSnapEnterprise Edition only
"Brings Power and Speed to Web Application Development"
- WebBroker still present and now supports Apache Web Server.
- Impetus is now on WebSnap, which allows component-based Web server development.
- Allows multiple Web modules in an application.
- WebPage Surface Designers help you build your application surfaces in HTML with instant browser previews.
- XML Tree and XSL Tree displays to present any XML/XSL documents with indentations and syntax highlighting.
- Pre-built scriptable components - datasets, login forms, end-user sessions and so on.
- Page producers and dispatchers for servicing standard XSL-transformed XML pages, logical pages and your own custom adapters and services.
- XSL page producers for combining XML data with XSL transforms.
- Server-side scriptable Web Page components to easily interface with Web site development teams and script writers.
- Server-side scripting with JavaScript, VBScript and any ActiveScript language.
- Active script debugging support
- WebSnap debug server aids debugging Web applications. Allows you to monitor HTTP requests, responses, and response time and to develop WebBroker and WebSnap applications without installing a commercial Web server. Also works with WebBroker applications. (Available in Professional and Enterprise Editions).
DataSnapEnterprise Edition only
"Lets You Build High-performance Web Service-enabled Middleware"
- DataSnap is the new name for the next version of MIDAS.
- DataSnap does the same job as MIDAS, but now allows you to connect between a client program and an application server through XML/SOAP.
- Application servers can therefore now be Web Services.
- A new SOAP Server Data Module is provided for building application servers with.
- Support for connection brokers has been added, to make it easier to switch the connection used by many components.
- Client datasets now make it easy to get at their data in XML format.
IDE
- Object TreeView (like hierarchy pane in Delphi 5 Data Module Designer)
- Code editor
- Surface designers (not in Personal Edition)
- Diagram page (from Delphi 5 Data Module Designer, but applicable to all designers) (not in Personal Edition)
- WebSnap pages (only in Enterprise Edition)
- Drag and drop tabs
- Code Completion
- Visual Basic emulation keybinding
- Emacs demo custom keybinding
- Data Module Designer reverts to Delphi 4 functionality.
- Object Inspector
- Properties dialog
- Instance list
- Expandable inline component references
- Form designer
- Context menu
- Tooltips
- Designer page on environment options dialog
- Component Palette
- Page names
- Context menu page items
- Internet toolbar for WebSnap applications
- Automatic docking can be disabled
Compiler
- Enumerated types with explicitly assigned ordinality
- New language directives
- platform, library and deprecated
- varargs
- New compiler directives
- $SetPEFlags and $SetPEOptFlags
- MSWINDOWS, LINUX and VER140
- $IF and ConditionalExpressions and Defined()
- $ALIGN
- $HINT, $WARN, $ERROR, $FATAL and $MESSAGE
- $LIBVERSION, $LIBSUFFIX and $LIBPREFIX
- Writeable constants are disabled by default and removed from RTL/VCL source
- CHASM (vs BASM) with new directives and instrcution support for MMX, SIMD, Enhanced MMX and Intel SSE for the Pentium Pro, Pentium III, and Pentium 4 CPUs; and AMD Enhanced 3D for the AMD K7 CPUs
COMNot in Personal Edition
- New COM objects can implement any existing, registered interface.
- Neutral threading model support.
- COM objects can be given COM+ attributes
- New wizard for COM+ event objects
- Transactional objects support MTS and COM+. MTS support was exclusive to Delphi 5 Enterprise but transactional objects are supported in Delphi 6 Professional Edition.
- TCOMAdminCatalog allows an application to act as an Automation controller for the COM+ administration tool.
DatabaseNot in Personal Edition
- dbExpress
- Lightweight database drivers that provide fast access to SQL database servers.
- Deploying a dbExpress application involves deplying one DLL (the server-specific driver) with optional connection information in a text config file.
- Alternatively, everything can be compiled into the executable by using some supplied DCUs.
- dbExpress uses unidirectional datasets for efficiency (no memory buffering, but quite limiting).
- Connect to a client dataset for bidirectional movement (TSQLClientDataSet is a compound component).
- Supports multiple transactions across a single connection
- TUpdateSQL can service multiple update objects.
- dbGo is the new name for ADOExpress
- New compound client dataset components that include built-in provider and source dataset: TBDEClientDataSet, TSQLClientDataSet and TIBClientDataSet
- MyBase is new term for briefacse application using client dataset and XML data
CORBAEnterprise Edition only
- IDL2PAS for clients and servers, with associated wizards.
- VisiBroker 3.3 or 4.0x can be specified.
- Support for event and naming services.
- Support for Borland AppServer 4.5.1 SIDL (Simplified IDL) to connect to EJBs.
ActionsNot in Personal Edition
- Action main menu and action toolbar components which support actions being dragged on
- Supports setting colours, patterns, bitmaps or banners
- Less frequently used actions can be hidden, as in Windows 2000
- Action manager allows organisation of actions against UI elements
- Action customisation dialog is an end-user version of an action ma
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