TDD in Gwt
Hi I just presented a session on working in tdd with gwt (Goos style for the connoisseurs ;)). http://www.slideshare.net/ubertobarbini/develop-gwt-application-in-tdd I hope the slides could be useful to somebody else too. Any feedback would be very welcome. Happy Easter! Uberto -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: some problem about GWT
right this can be a solution
On 24 avr, 05:02, 何剑涛 hejiant...@gmail.com wrote:
it is said that i must write it in server side,right?
2011/4/22 Carlos hbazz...@gmail.com:
hi,
you are writing your code in the client side.
thats why it can't recognize the javax.servlet.http.HttpServlet since
it is not supported by the gwt libraries.
On 22 avr, 07:28, 剑涛 何 hejiant...@gmail.com wrote:
I code a servlet in GWT:
Line 8: public class AddServvlet extends HttpServlet{
private static final long serialV = 1L;
protected void doPost(HttpServletRequest req,HttpServletResponse
res)
{
int a = Integer.parseInt(req.getParameter(a));
int b = Integer.parseInt(req.getParameter(b));
try {
res.getWriter().print(a+b);
} catch (IOException e) {
// TODO: handle exception
}
}}
when I run the project in IE,it say:[ERROR] [hellogwt] - Line
8: No
source code is available for type javax.servlet.http.HttpServlet; did
you forget to inherit a required module?
[ERROR] [hellogwt] - Line 10: No source code is available
for type
javax.servlet.http.HttpServletRequest; did you forget to inherit a
required module?
[ERROR] [hellogwt] - Line 10: No source code is available
for type
javax.servlet.http.HttpServletResponse; did you forget to inherit a
required module?
thank you!
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Re: Why Composite?
This is true but keep in mind that if you use inheritance to extent a widget your object must follow the Is A... rule. Il you extent a button with a new child class MyButton or MyToolbar you inherit all present and future methods, your object can be cast and used as a parent representative, it is also a Button and a Widget as example. So may be MyToolbar is not a good idea here because it is a button set and no a single button (The Rule Is A Button is not respected). The composite is a good way to build a new widget mays be with various smaller widgets and java code as glue (another one is wrapping the JS component using native methods). Inheritance has to keep the original widget idea with only specialisation like button with image as a sort of button or IntegerTextBox as a interger input dedicate TextBox. So if (and only if) the Is A rule apply it seems better to inherit. Hope it help a little bit. G. ;-) On 24 avr, 01:10, Harald Schilly harald.schi...@gmail.com wrote: When you want to design your own widget that modifies some data, you can combine more than one widget in such a Composite, additionally implement for example a HasValueChangeHandlers... interface, and much more. That helps to isolate all this into one class and you can use this as a bigger block when designing the UI. H -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Giving wrong value for Date of month
It seems to work perfectly, but what is the gwt version, the application context, the browser, the date object (java.util) ? Don't forget java Date Month start from 0 (January) to 11 (december). Date today = new Date(); GWTLog.debug(Today month is +today.getMonth()); // Display Today month is 3 = April On 23 avr, 20:14, andy andy.anand1...@gmail.com wrote: intstartMonth=startDate.getMonth(); int endMonth = endDate.getMonth(); giving wrong value what to do now? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: how to draw a line using gwt?
Drawing a Line inside a browser a well know problem, just look for java script line drawing in your search engine. The basic idea is to use a set of div tags to draw various points, ie 1px*1px rectangles with background-color but with performance problems. An idea is to agregate adjacent rectangles in a same column or in the same row to optimize this drawing. Various js libraries exists depending on the drawing and graphics complexity you are looking for. This Canvas library is a good thing but rely on new HTML 5 standard and is not supported by a lot of browser (current IE and all the old versions), may be it's a problem in your application. The Canvas class is includes in GWT 2.2 but as: Experimental API: This API is still under development and is subject to change. If this is not a problem for you this is the best GWT complient solution. The previous post give you the url of the google demo and examples http://code.google.com/p/gwtcanvasdemo/ There is (was) another Canvas library in the incubator project and it works fine in Web mode across the major browser working as JavaScript wrapper but is not a good idea (now this library is obsolete) http://code.google.com/p/google-web-toolkit-incubator/wiki/GWTCanvas Another way is to build a graphic at run time in your server using a graphics context from java and common drawing API to building an image and then display it on your server. It's convenient with complex images or to build a captcha as example. It is also possible to rely on SVG tags, like LINE. These are simple XML tags but sometimes requires a browser plugin. In fact there is multiple solutions depending on your project environment and your targets. On 24 avr, 05:20, 剑涛 何 hejiant...@gmail.com wrote: can you tell me something detail? On 4月23日, 下午10时20分, Gal Dolber gal.dol...@gmail.com wrote: http://gwtcanvasdemo.appspot.com/ On Sat, Apr 23, 2011 at 10:54 AM, 剑涛 何 hejiant...@gmail.com wrote: if there are two coordinates -p1:(x1,y1),p2:(x2,y2) in the browser ,how to draw an arrow from p1 to p2? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- Guit: Elegant, beautiful, modular and *production ready* gwt applications. http://code.google.com/p/guit/- Masquer le texte des messages précédents - - Afficher le texte des messages précédents - -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT RPC - WebServiceClient
Since Apache CXF or any other web service creates POJOs which are not
directly usable by GWT, we have taken extra pains to replicate the same
POJOs as GWT side POJOs. When servlet makes a call to the web service,
whatever objects we get back are anaylysed and then their 'copy' is made
into GWT side POJOs. Its tedious, but hey it works and scales too.
Thank you,
Sunit Katkar
On Fri, Apr 22, 2011 at 2:01 PM, Armishev, Sergey sarmis...@idirect.netwrote:
I did this GWT-RPC-WSDL integration and it works fine. Maybe not very much
efficient but it works and I made quicly what I needed. I used wscompile to
generate POJO java classes from WSDL. That are classes that Web server user
for web services communication. They are server side classes. Then I copied
server classes to client package and manually editted generated POJO classes
to be GWT RPC compatible. Yes, it is duplication and bad and I would like
to have the same classes for both sides but… don’t have time to develop full
solution Then ,Cxf knows nothing about GWT so even POJO classes has
references on unsupported Java classes such as Calendar (see below example).
I manually editted those file to be GWT RPC compatible. Not a big deal Then
I add “ implements java.io.Serializable” implementation to class
definition. And then in run time translate server side classes to client and
back.
Below is POJO file generated by cxf and corresponding class which is
GWT-RPC compatible. See Calendar class that is not supported.
Let me know if you need more help
-Sergey
// This class was generated by the JAXRPC SI, do not edit.
// Contents subject to change without notice.
// JAX-RPC Standard Implementation (1.1.3, build R1)
// Generated source version: 1.1.3
package com.idirect.webnms.*server*.toolkit;
public class NmsErrorCondition extends
com.idirect.webnms.*server*.toolkit.NmsObject
{
*protected java.util.Calendar timeStamp;*
protected com.idirect.webnms.client.toolkit.NmsErrorSeverity
errorSeverity;
protected java.lang.String errorMessage;
public NmsErrorCondition() {
}
public NmsErrorCondition(int objectType, boolean initialized,
java.util.Calendar timeStamp,
com.idirect.webnms.client.toolkit.NmsErrorSeverity errorSeverity,
java.lang.String errorMessage) {
this.objectType = objectType;
this.initialized = initialized;
this.timeStamp = timeStamp;
this.errorSeverity = errorSeverity;
this.errorMessage = errorMessage;
}
*public java.util.Calendar getTimeStamp() {*
*return timeStamp;*
*}*
public void setTimeStamp(java.util.Calendar timeStamp) {
this.timeStamp = timeStamp;
}
public com.idirect.webnms.client.toolkit.NmsErrorSeverity
getErrorSeverity() {
return errorSeverity;
}
public void
setErrorSeverity(com.idirect.webnms.client.toolkit.NmsErrorSeverity
errorSeverity) {
this.errorSeverity = errorSeverity;
}
public java.lang.String getErrorMessage() {
return errorMessage;
}
public void setErrorMessage(java.lang.String errorMessage) {
this.errorMessage = errorMessage;
}
}
And you translate it to
// This class was generated by the JAXRPC SI, do not edit.
// Contents subject to change without notice.
// JAX-RPC Standard Implementation (1.1.3, build R1)
// Generated source version: 1.1.3
package com.idirect.webnms.*client*.toolkit;
public class NmsErrorCondition extends
com.idirect.webnms.*client*.toolkit.NmsObject
{
*protected java.util.Date timeStamp;*
protected com.idirect.webnms.client.toolkit.NmsErrorSeverity
errorSeverity;
protected java.lang.String errorMessage;
public NmsErrorCondition() {
}
public NmsErrorCondition(int objectType, boolean initialized,
java.util.Date timeStamp, com.idirect.webnms.client.toolkit.NmsErrorSeverity
errorSeverity, java.lang.String errorMessage) {
this.objectType = objectType;
this.initialized = initialized;
this.timeStamp = timeStamp;
this.errorSeverity = errorSeverity;
this.errorMessage = errorMessage;
}
*public java.util.Date getTimeStamp() {*
*return timeStamp;*
*}*
public void setTimeStamp(java.util.Date timeStamp) {
this.timeStamp = timeStamp;
}
public com.idirect.webnms.client.toolkit.NmsErrorSeverity
getErrorSeverity() {
return errorSeverity;
}
public void
setErrorSeverity(com.idirect.webnms.client.toolkit.NmsErrorSeverity
errorSeverity) {
this.errorSeverity = errorSeverity;
}
public java.lang.String getErrorMessage() {
return errorMessage;
}
public void setErrorMessage(java.lang.String errorMessage) {
this.errorMessage = errorMessage;
}
}
And then you need
Re: gwt-maven-plugin woes
Update: The problem was that the launch configuration created by the gwt-maven- plugin was missing the module specification. Once I added this, the app did come up when invoking Run As/Web Application. The current problem that I'm working on is that my app compiled for web mode isn't coming up. Instead I get a dialog box saying the module may need to be recompiled. Its looking like there are files missing from the war file. Wish me luck. Obviously, GPE/Eclipse functionality hasn't been very well tested by the plugin developers. On Apr 21, 11:39 am, cri chuck.irvine...@gmail.com wrote: I'm trying to use gwt project generated by using the gwt-maven-plugin archetype but don't very far. I feel I must be making a simple mistake. It would be great ifmavensupport was provided directly by GWT. Here is are the steps I followed with gwt-maven-plugin (from the gwt-maven-plugin documentation): 1) Generate a gwt project as described here:http://mojo.codehaus.org/gwt-maven-plugin/user-guide/archetype.html. 2) Import the project into eclipse using eclipse command Import - ExistingMavenProject. (I'm not sure that this is correct. There is also an eclipse command Import - Existing Projects into Workspace. Which is the correct command?) 3) Configure project to use GPE by checking checkbox at Properties - Google - Web Toolkit - Use Google Web Toolkit. 4) Create a launch file running gwt:eclipse. This creates a launch file and copy it to .metadata/.plugins/ org.eclipse.debug.core/.launches. as described herehttp://mojo.codehaus.org/gwt-maven-plugin/user-guide/comfortable_debu 5) Restart eclipse. 6) Right click on the launch file created in step 4 and invoke Debug As - launch file name. At this point the launch fails with the info below. It would be great if someone could help me get through this. Its probably something simple that I'm not experienced enough to recognize. Launch failure info: Missing required argument 'module[s]' Google Web Toolkit 2.2.0 DevMode [-noserver] [-port port-number | auto] [-whitelist whitelist- string] [-blacklist blacklist-string] [-logdir directory] [-logLevel level] [-gen dir] [-bindAddress host-name-or-address] [-codeServerPort port-number | auto] [-server servletContainerLauncher[:args]] [- startupUrl url] [-war dir] [-deploy dir] [-extra dir] [-workDir dir] module[s] where -noserver Prevents the embedded web server from running -port Specifies the TCP port for the embedded web server (defaults to ) -whitelist Allows the user to browse URLs that match the specified regexes (comma or space separated) -blacklist Prevents the user browsing URLs that match the specified regexes (comma or space separated) -logdir Logs to a file in the given directory, as well as graphically -logLevel The level of logging detail: ERROR, WARN, INFO, TRACE, DEBUG, SPAM, or ALL -gen Debugging: causes normally-transient generated types to be saved in the specified directory -bindAddress Specifies the bind address for the code server and web server (defaults to 127.0.0.1) -codeServerPort Specifies the TCP port for the code server (defaults to 9997) -server Specify a different embedded web server to run (must implement ServletContainerLauncher) -startupUrl Automatically launches the specified URL -war The directory into which deployable output files will be written (defaults to 'war') -deploy The directory into which deployable but not servable output files will be written (defaults to 'WEB-INF/deploy' under the -war directory/jar, and may be the same as the -extra directory/jar) -extra The directory into which extra files, not intended for deployment, will be written -workDir The compiler's working directory for internal use (must be writeable; defaults to a system temp dir) and module[s] Specifies the name(s) of the module(s) to host Reply Forward -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: How to share code between Server and Client with DateTimeFormat
Hi I,
use this class
http://cvs.adligo.org/viewvc/i_util/src/org/adligo/i/util/client/CommonTime.java?view=markup
Then when in JSE (on the Server) it delegates to
http://cvs.adligo.org/viewvc/jse_util/src/org/adligo/jse/util/JSETextFormatter.java?view=markup
And in GWT it delegates to
http://cvs.adligo.org/viewvc/gwt_util/src/org/adligo/gwt/util/client/GwtTextFormatter.java?view=markup
So to use it do this somewhere on the server;
static {
46 try {
47 JSEPlatform.init();
48 } catch (Exception x) {
49 x.printStackTrace();
50 }
51 }
For instance in ;
http://cvs.adligo.org/viewvc/adi_server_config/src/org/adligo/i/adi/server_config/ExternalConfigListener.java?view=markup
...
http://cvs.adligo.org/viewvc/adi_server_config/src/org/adligo/i/adi/server_config/ServerConfig.java?view=markup
And on the client do;
try {
39 GwtPlatform.init();
40 GwtLogFactory.init();
41 } catch (Exception x) {
42 x.printStackTrace();
43 log.error(x.getMessage(), x);
44 }
as in this example;
http://cvs.adligo.org/viewvc/gwt_util_demo/src/org/adligo/gwt/util/demo/client/DemoEntryPoint.java?view=markup
Then simply use the static methods in CommonTime.java and constants to
get the same date formatted on client or server.
Cheers,
Scott
On Apr 23, 11:06 pm, Mauro mauro.no...@gmail.com wrote:
Hi, would you give me a sample on where the initialization code for server
goes? Thanks
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Re: gwt-maven-plugin woes
Update (final one I hope!): After creating the initial project with the gwt-maven-plugin archetype, it appears that you should not use import... - existing maven projects (which comes from m2eclipse I think). Instead, you should use eclipse's native import... - existing projects into workspace. In the latter case, the module specification will *not* get left off program arguments when launching in debug mode. On Apr 24, 11:52 am, cri chuck.irvine...@gmail.com wrote: Update: The problem was that the launch configuration created by the gwt-maven- plugin was missing the module specification. Once I added this, the app did come up when invoking Run As/Web Application. The current problem that I'm working on is that my app compiled for web mode isn't coming up. Instead I get a dialog box saying the module may need to be recompiled. Its looking like there are files missing from the war file. Wish me luck. Obviously, GPE/Eclipse functionality hasn't been very well tested by the plugin developers. On Apr 21, 11:39 am, cri chuck.irvine...@gmail.com wrote: I'm trying to use gwt project generated by using the gwt-maven-plugin archetype but don't very far. I feel I must be making a simple mistake. It would be great ifmavensupport was provided directly by GWT. Here is are the steps I followed with gwt-maven-plugin (from the gwt-maven-plugin documentation): 1) Generate a gwt project as described here:http://mojo.codehaus.org/gwt-maven-plugin/user-guide/archetype.html. 2) Import the project into eclipse using eclipse command Import - ExistingMavenProject. (I'm not sure that this is correct. There is also an eclipse command Import - Existing Projects into Workspace. Which is the correct command?) 3) Configure project to use GPE by checking checkbox at Properties - Google - Web Toolkit - Use Google Web Toolkit. 4) Create a launch file running gwt:eclipse. This creates a launch file and copy it to .metadata/.plugins/ org.eclipse.debug.core/.launches. as described herehttp://mojo.codehaus.org/gwt-maven-plugin/user-guide/comfortable_debu 5) Restart eclipse. 6) Right click on the launch file created in step 4 and invoke Debug As - launch file name. At this point the launch fails with the info below. It would be great if someone could help me get through this. Its probably something simple that I'm not experienced enough to recognize. Launch failure info: Missing required argument 'module[s]' Google Web Toolkit 2.2.0 DevMode [-noserver] [-port port-number | auto] [-whitelist whitelist- string] [-blacklist blacklist-string] [-logdir directory] [-logLevel level] [-gen dir] [-bindAddress host-name-or-address] [-codeServerPort port-number | auto] [-server servletContainerLauncher[:args]] [- startupUrl url] [-war dir] [-deploy dir] [-extra dir] [-workDir dir] module[s] where -noserver Prevents the embedded web server from running -port Specifies the TCP port for the embedded web server (defaults to ) -whitelist Allows the user to browse URLs that match the specified regexes (comma or space separated) -blacklist Prevents the user browsing URLs that match the specified regexes (comma or space separated) -logdir Logs to a file in the given directory, as well as graphically -logLevel The level of logging detail: ERROR, WARN, INFO, TRACE, DEBUG, SPAM, or ALL -gen Debugging: causes normally-transient generated types to be saved in the specified directory -bindAddress Specifies the bind address for the code server and web server (defaults to 127.0.0.1) -codeServerPort Specifies the TCP port for the code server (defaults to 9997) -server Specify a different embedded web server to run (must implement ServletContainerLauncher) -startupUrl Automatically launches the specified URL -war The directory into which deployable output files will be written (defaults to 'war') -deploy The directory into which deployable but not servable output files will be written (defaults to 'WEB-INF/deploy' under the -war directory/jar, and may be the same as the -extra directory/jar) -extra The directory into which extra files, not intended for deployment, will be written -workDir The compiler's working directory for internal use (must be writeable; defaults to a system temp dir) and module[s] Specifies the name(s) of the module(s) to host Reply Forward -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Giving wrong value for Date of month
You aren't saying what the type is for startDate and endDate. If they are java.util.Date, I suggest looking ate the javadoc b/c the method returns 0-11 and is also deprecated. Richard On Apr 23, 11:14 am, andy andy.anand1...@gmail.com wrote: int startMonth = startDate.getMonth(); int endMonth = endDate.getMonth(); giving wrong value what to do now? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
