2) The portlet sentence seems rather bizarre to me, a portal dispatcher? JSR-168 says very little about portals, so a portal dispatcher is certainly not self-explanatory, to me at any rate.
3) 'Two strategies for handling form submission' seems another odd detail to choose to highlight. Smells too much of 'look at how clever we are for coming up with this trick!' rather than 'this is why the average person should use webwork2'.
4) 'JPublish is replacing their...'...JPublish isn't a bunch of guys, it's a product.
5) I assume the sig is not part of the press release
On Monday, August 18, 2003, at 09:15 PM, Jason Carreira wrote:
I've written up a short "press release" to go as an announcement to TSS and JavaLobby and on the OpenSymphony site. Take a look at let me know what you think:
The OpenSymphony team is proud to announce the first beta releases of XWork 1.0 and WebWork 2.0.
This is the first release of a complete rewrite of WebWork, a
hierarchical pull-MVC framework. While WebWork 1 provided a good
separation of the general command framework from the web specific code,
there was always a tension between making the code more specific for web
applications and keeping the web-agnostic general command
implementation. With XWork, the OpenSymphony team went back to the
drawing board to create a powerful generic command pattern
implementation. WebWork2 leverages the power of XWork at its core and
builds upon it with web application framework specific code. This
separation allows for each project to specialize and do what it does
best without the possibility of contaminating or limiting either code
base.
XWork
Xwork is a generic command pattern implementation with no dependencies on web specific libraries. Xwork adds powerful features to command processing including interceptors, the OGNL (http://www.ognl.org) expression language, an IoC (Inversion of Control) container, flexible type conversion, and a powerful validation framework.
- Interceptors allow arbitrary code to be included in the call stack for
your Action before and/or after processing of the Action, which can
vastly simplify your code itself and provide excellent opportunities for
code reuse. Many of the features of XWork and WebWork 2 are implemented
as Interceptors and can be applied via external configuration along with
your own Interceptors in whatever order you specify for any set of
Actions you define.
- OGNL is used throughout XWork to allow dynamic object graph traversal and method execution where needed and can transparently access properties from multiple beans using our ValueStack.
- XWork IoC allows for code dependencies to be made explicit and centrally managed while simplifying your Action code. Components required by your actions will be instantiated and maintained in a hierarchy of three scopes (application <- session <- request) and will be provided to your actions automatically, removing the need for boilerplate code to lookup required services from a registry or hardwired dependencies on a service implementation class.
- The XWork Validation Framework allows you to define your validations for a class in external XML files and have them applied at runtime automatically (using an Interceptor). It is very flexible framework, allowing for different validations for the same class in different contexts with defaults and inherited validations and passing the validation context on to your domain objects to allow them to be validated using their own validation definitions. It also ties in with XWork's excellent i18n localization for multi-language messages.
XWork is completely generic, and can be applied to any request/response
paradigm. JPublish is currently replacing their internal command pattern
implementation with XWork, and possible future implementations built on
XWork include a Portal Dispatcher implemented as a JSR-168 Portlet, a
JMS dispatcher, and JSF integration.
WebWork2
WebWork2 is built as a set of Interceptors, Results, and Dispatchers on
top of XWork. WebWork2's view technologies include JSP, Velocity, and
FreeMarker. For the final 2.0 release, JasperReports and XSLT views will
be implemented as well. WebWork2 comes with a small but powerful set of
JSP tags and Velocity macros which make use of OGNL's expression parser
and XWork's ValueStack to provide for easy and expressive web page
development. WebWork2's JSP tags and Velocity macros are built upon a
flexible templating system, allowing you to customize the output of the
tags by providing your own set of templates. WebWork2 also comes with
powerful pre-built components to make web application development faster
and easier such as two strategies for handling duplicate form submits
(one returns an error view for subsequent form submissions, the other
saves the result of the first form processing and displays that result
for all subsequent form submissions). WebWork2 also provides the
standard web application framework features such as servlet redirect and
request dispatcher results and multipart file uploading support.
-- Jason Carreira Technical Architect, Notiva Corp. phone: 585.240.2793 fax: 585.272.8118 email: [EMAIL PROTECTED] --- Notiva - optimizing trade relationships (tm)
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