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This AJAX Engine was originating published in 2005 for the ASP.NET 2.0 Platform and is now partly also available in JAVA. This Engine can be ported very easily because it relies on web standards that are available on many platforms and in many languages:
A huge part of the coding is done using JavaScript on the client. This code needs shared by both projects and is always exchangeable.
The asynchronous calls from the page in the browser to the server are implemented using the SOAP standard. On the server we only need Standard WebServices. Both platforms, ASP.NET and Java support the bottom up implementation of WebServices and we just need to write simple methods that get called from the client.
To enable a communication from the client side, the server uses the WSDL definitions that can be generated from WebServices on both platforms and transforms them to proxy objects using JavaScript.
The retrieval of the WSDL and for the transformation is ported and needs only about 30 lines of code that you can find in ~/ajaxcore/GetJavaScriptProxy.aspx or ~/ajaxcore/GetJavaScriptProxy.jsp.
The definition of the translation itself is coded using an xslt definition in the file ~/ajaxcore/wsdl.xslt that is also identical on both platforms.
The AJAX Engine needs nothing else than these 3 building blocks.
The download is available on my web side: http://www.mathertel.de/AJAXEngine/ in the download section containing a eclipse project. I use right now: Eclispe 3.1.2 with the Webtools plug-in 1.0, Java 1.4.2.x, Tomcat 5.5 incl. the compatibility jar and Axis 1.2.1
If you search for more documentation use the following links that are part of the ASP.NET version written in C#. Java programmers should understand the code very easily and there are also many JavaScript hints and tricks documented in there.
http://www.codeproject.com/KB/XML/JavaScriptProxy_01.aspx
A early available documentation about how the JavaScript proxies are generated and how they work.
http://ajaxaspects.blogspot.com/
The blog where all you can find all the documentation that was written while the project was growing.
http://www.mathertel.de/AJAXEngine/
The ASP.NET based demo WebSide containing all the samples I talked about in my blog.
http://www.mathertel.de/Ajax/AJAXeBook.aspx
An eBook about the AJAX Engine. Here you can find most of the content of the blog and some more hints.
Please contact me via my blog and let me know how you find this work - and what you miss.
This algorithm was used in the first part of the samples too. Here is the final implementation using the server-side webservice and the AJAX engine.
~/S02_AJAXCoreSamples/CalcFactorsAJAX.htm is a sample that uses the AJAX Engine to call the server for calculation prime factors. This scenario can be used for situations where the comutation of anything cannot or should not be done on the client.
services/CalcService (view WSDL using services/CalcService?WSDL) This is the webserviceused in this sample.
A detailed description for this sample is a available in German and English.
Please contact me via my blog and let me know how you find this work - and what you miss.
This page is part of the http://www.mathertel.de/ web site.
