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Tapestry's use of the Javassist bytecode library has been completely removed, along with many related services, such as ClassFactory, that were deprecated in 5.3. Use PlasticProxyFactory instead. Most users will not be affected by this unless they relied on Tapestry's dependency on Javassist.
ClientBehaviorSupport Functionality Removed
This service collected details about zone usage, including the client-side behavior associated with FormFragment
s. This interface is only kept for binary compatibility in Tapestry 5.4; the implementation no longer does anything but throw exceptions and will be removed in 5.5 or later.
FormInjector Removed
The FormInjector component was removed; it was intended for use only inside the AjaxFormLoop component (which was rewritten in 5.4 and no longer uses FormInjector). FormInjector was not widely used elsewhere, if it was used at all.
MarkupWriterFactory API
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Changed
The MarkupWriterFactory interface has 3 new methods, added to support the HTML5 rules for element endings. If you have any classes that implement MarkupWriterFactory (which is rare), they'll need to be modified to implement the new methods. As noted in the Javadocs, use JavaScriptSupport directly instead.
Injected Scripts at Bottom
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The library approach is fundamentally limited in a number of ways, including namespace pollution and dealing with dependencies between libraries. Tapestry 5.4 introduces a parallel mechanism, based on RequireJS and the Asynchronous Module Definition as a way to speed up initial page load and organize client-side JavaScript in a more expressive and maintainable way.
Client-side API for invoking server-side events
Tapestry 5.4.2 adds an API which makes it easy for server-side events to be invoked from JavaScript. In the server-side, you first need to annotate the event handler methods you want exposed with the new @PublishEvent
annotation. Then, in JS, all you need to do is to call the t5/core/ajax
function with the server-side event name/type in the url
parameter and with an options
parameter containing an element
property, be it null or specifying an DOM element to be used as the starting point for finding the event information. More details in the Ajax and Zones page.
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