Re: j2s-development] [New Feature] Re: Dynamic Loading of JavaScript files
Brought to you by:
zhourenjian
Menu
▾
▴
Re: j2s-development] [New Feature] Re: Dynamic Loading of JavaScript files
|
From: Soheil H. Y. <soh...@gm...> - 2006-07-15 12:33:42
|
I found a bug in this new feature. It does not support cyclic dependancy. x needs y and y needs x. Any idea? On 7/14/06, Zhou Renjian <jo...@sj...> wrote: > The Java2Script compiler will compile those implicit imports into > explicit imports. > > In JavaScript level of ClazzLoader.js, ClassLoader need to know the > exact classes to *.js path mappings, in which one *.js file may contains > more than one class. > > ClassLoader is designed to support other JavaScript object oriented > systems by overriding parts of codes, such as > ClazzLader.getClasspathFor. But this feature is not yet tested on other > complicate toolkits like dojo. And ClassLoader supports asynchronous > loading mode on both using "<SCRIPT>" or XMLHttpRequest, and also > support synchronous loading mode on XMLHttpRequest. In using "<SCRIPT>" > tag mode, classes can be loaded from different domains. > > I are wondering of writing some documents for these JavaScript level > deployment and configuration things. For pure Java programming, J2S will > provide wizards or configuration files for Java2Script compiler to > generate those JavaScript deployment and configuration codes. > > > Soheil Hassas Yeganeh wrote: > > Sorry for my question. I've read the examples and seen it supports the > > package level class usage. Thanx for the great work of Zhou. > > Regards, > > Soheil > > > > On 7/14/06, Soheil Hassas Yeganeh <soh...@gm...> wrote: > > > >> 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? Need to support web services, security? > >>> Get stuff done quickly with pre-integrated technology to make your job easier > >>> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > >>> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > >>> _______________________________________________ > >>> j2s-development mailing list > >>> j2s...@li... > >>> https://lists.sourceforge.net/lists/listinfo/j2s-development > >>> > >>> > > > > > > ------------------------------------------------------------------------- > > Using Tomcat but need to do more? Need to support web services, security? > > Get stuff done quickly with pre-integrated technology to make your job easier > > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > > _______________________________________________ > > j2s-development mailing list > > j2s...@li... > > https://lists.sourceforge.net/lists/listinfo/j2s-development > > > > > > > > > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > j2s-development mailing list > j2s...@li... > https://lists.sourceforge.net/lists/listinfo/j2s-development > |
