Re: j2s-development] [New Feature] Re: Dynamic Loading of JavaScript files
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Re: j2s-development] [New Feature] Re: Dynamic Loading of JavaScript files
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From: Soheil H. Y. <soh...@gm...> - 2006-07-14 08:55:30
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Dear Zhou, Thanks for your great work. It was a must for Java2Script, and now you made a great enhancement. But, I have a question. Does the implemented ClassLoader support loading package level classes that are used with no explicit import? Regards, Soheil On 7/13/06, Zhou Renjian <jo...@sj...> wrote: > Hi, > > Finally, function of loading Java2Script's *.js files dynamically are > implemented. > From now on, programmers do not need to manage classes order to get > Java2Script applications correctly run. That is to say, loading *.js is > transparent to programmers. > > This feature will be the base technology of other coming features, such > as earlier discussed Class.forName (...). > > And by loading Java2Script's *.js files dynamically, we can now generate > a line of JavaScript code or a "javascript:..." link for a J2S > application, which can be hosted inside other sites' HTML pages. Maybe > we can call it "A Link An Application". Read more about this in the blog > article: http://j2s.sourceforge.net/blog/2006/07/11/a-link-an-application/ > > There are lots of bugs about this features. Some more tests may be required. > > Please check out the latest codes from SVN repository. > > And something should be mentioned: > 1. Those lots of *.js in net.sf.j2s.lib/j2slib/.../*.js are generated > from net.sf.j2s.java.core, net.sf.j2s.ajax and > net.sf.j2s.java.org.eclipse.swt. You can run target j2slib.pack.lib of > ant build j2s.core.build in project net.sf.j2s.lib to copy and pack the > necessary files without checking out from the slow SVN. > 2. Most of former *.z.js are removed. Only a new "j2slib.z.js" is left > as the entry to all existed *.js units. So now, in the "Java2Script > builder" property page "Add Libraries" button will open Dialog for > choosing the only-one "j2slib.z.js" library. Just choose the library to > make things work. And now "Add Resources", "Add Projects" and other > buttons are now make no sense. And the those classes in the tree view > also have no meanings now. These things will be removed or changed in > the near future. For more details, please study the generated > Java2Script application HTML file for more details. > 3. ... > > I think later I need to write something to make the big change clear. > > Regards > > /js > > Soheil Hassas Yeganeh wrote: > > I did not mean to use a method like the one used in dojo. I was just > > arguing about the idea. > > Implementing a method for import a Class( import java.util.* --> > > j2s_import("java.util.*")), and an implementation for Class.forName(), > > is really enough for dynamic loading of java2script. May be > > implementing java.reflect.* would be better. > > I think using a method like this, will provide us a dynamic loading > > method with the developer transparency preserved. > > > > Regards, > > Soheil > > > > On 6/15/06, Josson Smith <jo...@sj...> wrote: > > > >> Dynamic loading *.js will be complex things. > >> > >> And I know that dojo toolkit is using its dynamic loading mechanism of > >> JavaScript files. > >> > >> For Java2Script, > >> First, the number of *.js files is somewhat huge already. It is more > >> than 200. Setup the connections will require a lot of extra times. > >> Second, referencing, sub-referencing, and sub-sub-referencing, ... may > >> reference most of the classes. It requires some algorithm to cut off > >> those unnecessary sub-referencing until it's necessary. > >> Third, Java programmers should not be required to know things about > >> dynamic loading of JavaScript. > >> > >> More discussions are needed. > >> > >> > >> Soheil Hassas Yeganeh wrote: > >> > >>> Oh, a very nice doco! I found here : > >>> http://ajaxpatterns.org/On-Demand_Javascript > >>> > >>> On 6/12/06, Soheil Hassas Yeganeh <soh...@gm...> wrote: > >>> > >>> > >>>> Hi, > >>>> I've a proposal for loading javascript files, dynamically. Suppose we > >>>> have a lot of javascript files generated. As it occures in many > >>>> applications many of the javascript files are not used frequently. > >>>> So, Now, if we want to run that application we have to import a lot of > >>>> js files in the html. This will make the application very slow and > >>>> heavy. > >>>> So, we need a dynamic javascript loading mechanism. If we have this > >>>> mechanism, we can also implement methods like Class.forName(). > >>>> We can use .z files generated by j2s to dynamically loading need > >>>> javascript files for each class. > >>>> In other words, we need something like the Bindows' BiScriptLoader. > >>>> Regards, > >>>> Soheil Hassas Yeganeh > >>>> > >>>> > >>>> > >>> _______________________________________________ > >>> j2s-development mailing list > >>> j2s...@li... > >>> https://lists.sourceforge.net/lists/listinfo/j2s-development > >>> > >>> > >>> > >>> > >> -- > >> Regards > >> > >> /js > >> > >> > >> > >> > >> _______________________________________________ > >> j2s-development mailing list > >> j2s...@li... > >> https://lists.sourceforge.net/lists/listinfo/j2s-development > >> > >> > > > > > > _______________________________________________ > > j2s-development mailing list > > j2s...@li... > > https://lists.sourceforge.net/lists/listinfo/j2s-development > > > > > > > > > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? 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