We are pleased to announce the 2nd preview release of Spring Web Flow
for use with the Spring 1.2 release path. This
stable-for-development-use release offers the following major new
flow execution storage strategies, with out-of-the-box
continuations support. This means:
now have the option to persist an executing flow’s
state to any backing data store, including the HttpSession (the
default), a database, serialized files, etc.
can select to use a continuations based storage strategy, turning
Spring Web Flow into a continuation-driven system providing proper
browser navigational button behavior (back, next, refresh, and new
window.) You can also choose between client-side or server-side
continuation storage. GZIP compression of flow execution
state is also supported.
for OGNL transition criteria, with a
TransitionCriteriaCreator strategy for easily integrating other
expression languages or custom transition expressions as needed.
support, with the samples (Phonebook) illustrating Spring Web
Flow in a portlet environment.
for a ‘validatorMethod’ action state
property, specifying a validation method to invoke, for use with a
FormAction with a configured Validator instance (to support easy
piecemeal validation within a wizard)
for JDK 1.3.
(Phonebook) illustrating how to write integration tests to
verify the expected behavior of your flows.
(Birthdate) illustrating Struts integration.
brand new sample app (Sell Item), illustrating a validating wizard
using continuations (providing proper browser navigational button use!)
and conditional transitions (using OGNL expressions!).
There are also a number of bug fixes and other general
improvements/polishing included in this release. Note, for
PR1 users: there are a few incompatible changes in PR2 with PR1.
Please see the Change Log on the WIKI for details.
As always, with the Spring seal of quality you’ve come to
expect, we offer:
documentation, both in the javadocs and WIKI docs
attention to naming, packaging, and ease of use
feature set driven by end user needs
To download the preview release:
1. Access the springframework project file list
2. Scroll down to the 'spring-webflow' release package and select
'spring-webflow-preview2.zip' for download.
The release archive consists of two jars:
- the core web flow system
- supporting packages not yet released as
part of the core Spring framework.
As the release archive does not ship with the Spring Framework, please
download Spring 1.2 RC1 first if you have not done so already.
Once downloaded, visit the webflow
to review the module
documentation and "Quick Start."
To get a good feel for Spring Web Flow in action, checkout the samples
in the release archive within the samples/webflow directory.
See the samples/webflow/readme.txt file on how to build and deploy the
We very much value your feedback—there is a lot of new,
exciting stuff in this release so give it a try!