Comments on: The Command Pattern with the Grails GWT Plugin http://www.cacoethes.co.uk/blog/groovyandgrails/the-command-pattern-with-the-grails-gwt-plugin A search for meaning in software and life Thu, 06 Oct 2011 21:33:00 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Rus http://www.cacoethes.co.uk/blog/groovyandgrails/the-command-pattern-with-the-grails-gwt-plugin/comment-page-1#comment-1080 Rus Thu, 10 Jun 2010 11:29:18 +0000 http://www.cacoethes.co.uk/blog/?p=107#comment-1080 I've got to the bottom of this now. My action and response implementations were in the wrong package. Following the blog I created them in org.myexample.myapp.client but moving them to org.myexample.shared is what seemed to work with the following in the gwt.xml I’ve got to the bottom of this now. My action and response implementations were in the wrong package. Following the blog I created them in org.myexample.myapp.client but moving them to org.myexample.shared is what seemed to work with the following in the gwt.xml

]]> By: Peter http://www.cacoethes.co.uk/blog/groovyandgrails/the-command-pattern-with-the-grails-gwt-plugin/comment-page-1#comment-1078 Peter Tue, 08 Jun 2010 16:55:23 +0000 http://www.cacoethes.co.uk/blog/?p=107#comment-1078 Could you raise a JIRA issue and attach a simple example project so I can try it out? Thanks. Could you raise a JIRA issue and attach a simple example project so I can try it out? Thanks.

]]> By: Rus http://www.cacoethes.co.uk/blog/groovyandgrails/the-command-pattern-with-the-grails-gwt-plugin/comment-page-1#comment-1076 Rus Tue, 08 Jun 2010 14:50:02 +0000 http://www.cacoethes.co.uk/blog/?p=107#comment-1076 I actually get this error even without any actions created. As soon as the following is added into the module the compile-gwt-modules doesnt work GwtActionServiceAsync service = GWT.create(GwtActionService.class); I actually get this error even without any actions created. As soon as the following is added into the module the compile-gwt-modules doesnt work

GwtActionServiceAsync service = GWT.create(GwtActionService.class);

]]> By: Rus http://www.cacoethes.co.uk/blog/groovyandgrails/the-command-pattern-with-the-grails-gwt-plugin/comment-page-1#comment-1075 Rus Mon, 07 Jun 2010 08:27:21 +0000 http://www.cacoethes.co.uk/blog/?p=107#comment-1075 I'm using version 2.0.3 of GWT and 0.5.1 of the plugin. I've created my own concrete implementation of Action and just checked the interface and it does indeed extend Serializable. Strange..... I’m using version 2.0.3 of GWT and 0.5.1 of the plugin. I’ve created my own concrete implementation of Action and just checked the interface and it does indeed extend Serializable. Strange…..

]]> By: Peter http://www.cacoethes.co.uk/blog/groovyandgrails/the-command-pattern-with-the-grails-gwt-plugin/comment-page-1#comment-1074 Peter Mon, 07 Jun 2010 07:56:47 +0000 http://www.cacoethes.co.uk/blog/?p=107#comment-1074 Which version of GWT? Which version of the plugin? Are you using the command pattern, i.e. have you created your own concrete implementations of <tt>Action</tt>? I don't ever remember seeing this error, but a Google search indicates it's something to do with serialization. The <tt>Action</tt> interface in the plugin should extend <tt>Serializable</tt>, but perhaps you have an older version in which it doesn't? Which version of GWT? Which version of the plugin? Are you using the command pattern, i.e. have you created your own concrete implementations of Action? I don’t ever remember seeing this error, but a Google search indicates it’s something to do with serialization. The Action interface in the plugin should extend Serializable, but perhaps you have an older version in which it doesn’t?

]]> By: Rus http://www.cacoethes.co.uk/blog/groovyandgrails/the-command-pattern-with-the-grails-gwt-plugin/comment-page-1#comment-1073 Rus Sun, 06 Jun 2010 22:06:59 +0000 http://www.cacoethes.co.uk/blog/?p=107#comment-1073 Hi Peter, I get the following error when trying to compile gwt modules, any ideas? grails.plugins.gwt.shared.Action has no available instantiable subtypes. (reached via grails.plugins.gwt.shared.Action) Hi Peter,

I get the following error when trying to compile gwt modules, any ideas?

grails.plugins.gwt.shared.Action has no available instantiable subtypes. (reached via grails.plugins.gwt.shared.Action)

]]> By: Peter http://www.cacoethes.co.uk/blog/groovyandgrails/the-command-pattern-with-the-grails-gwt-plugin/comment-page-1#comment-1070 Peter Tue, 01 Jun 2010 07:30:29 +0000 http://www.cacoethes.co.uk/blog/?p=107#comment-1070 @Chris I've been using GWT 2.0 with version 0.5 of the plugin for some time. What URL is the client trying to connect to? Is it actually a failure to connect, or a 404? You might want to post this to the Google group: grails-gwt@googlegroups.com @Chris I’ve been using GWT 2.0 with version 0.5 of the plugin for some time. What URL is the client trying to connect to? Is it actually a failure to connect, or a 404? You might want to post this to the Google group: grails-gwt@googlegroups.com

]]> By: Chris http://www.cacoethes.co.uk/blog/groovyandgrails/the-command-pattern-with-the-grails-gwt-plugin/comment-page-1#comment-1069 Chris Tue, 01 Jun 2010 05:23:43 +0000 http://www.cacoethes.co.uk/blog/?p=107#comment-1069 I should be more specific - gwt-rpc calls that work in 1.7.1 and 1.6 etc, etc don't work for some reason when swapping in gwt 2.0.3. Fails with an exception saying to check the network - but I'm running tests in developer mode all local, so it should work readily enough. So, if the client side is built and tested with 1.7.1 and the server side with either version, the client works fine. But upgrading the client and building with 2.0.3, even starting with a fresh project from scratch and copying the sources in (I maintain client and server code separate from one another), running the 2.0.3 gwt-rpc code underneath fails to connect - it works for regular servlets doing things the old fashioned way, but, of course, I love grails, so it's disappointing. Also, have you gotten a chance to look at the new experimental version of gwt-rpc in the 2.0 release? thank you, Chris I should be more specific – gwt-rpc calls that work in 1.7.1 and 1.6 etc, etc don’t work for some reason when swapping in gwt 2.0.3. Fails with an exception saying to check the network – but I’m running tests in developer mode all local, so it should work readily enough.

So, if the client side is built and tested with 1.7.1 and the server side with either version, the client works fine. But upgrading the client and building with 2.0.3, even starting with a fresh project from scratch and copying the sources in (I maintain client and server code separate from one another), running the 2.0.3 gwt-rpc code underneath fails to connect – it works for regular servlets doing things the old fashioned way, but, of course, I love grails, so it’s disappointing.

Also, have you gotten a chance to look at the new experimental version of gwt-rpc in the 2.0 release?

thank you,

Chris

]]> By: Chris http://www.cacoethes.co.uk/blog/groovyandgrails/the-command-pattern-with-the-grails-gwt-plugin/comment-page-1#comment-1068 Chris Tue, 01 Jun 2010 05:11:02 +0000 http://www.cacoethes.co.uk/blog/?p=107#comment-1068 Hi, I seem to be able to run ok with gwt 1.7.1 and lower, but gwt 2.0.3 seems to have problems in that the same code, urls, everything, but with the new gwt fails. Have you had a chance to try the 2.0 stuff and have you been successful and if so are there any gotchas to look out for? I must admit I gave up pretty quickly when it didn't work :(. thank you, Chris Hi,

I seem to be able to run ok with gwt 1.7.1 and lower, but gwt 2.0.3 seems to have problems in that the same code, urls, everything, but with the new gwt fails.

Have you had a chance to try the 2.0 stuff and have you been successful and if so are there any gotchas to look out for?

I must admit I gave up pretty quickly when it didn’t work :( .

thank you,

Chris

]]> By: Peter http://www.cacoethes.co.uk/blog/groovyandgrails/the-command-pattern-with-the-grails-gwt-plugin/comment-page-1#comment-1064 Peter Mon, 31 May 2010 11:55:44 +0000 http://www.cacoethes.co.uk/blog/?p=107#comment-1064 @patria I've updated the post to reflect the changes in packages for the final 0.5 release. Thanks for bringing my attention to it. @patria I’ve updated the post to reflect the changes in packages for the final 0.5 release. Thanks for bringing my attention to it.

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