Errai: The browser as a platform

Wednesday, May 24, 2017

Errai 4.0.0.Final released!

Today I'm thrilled to announce that Errai 4.0.0.Final has been released!

At a glance, here are the big changes from Errai 3 to 4:
  • Uses GWT 2.8.0 and WildFly 10 for Super Dev Mode
  • Has a new Errai IoC container supporting incremental code regeneration, and greater compliance with CDI
  • Has advanced JS Interop support, including dependency injection of native JavaScript objects, and templating and data-binding with JS Interop wrappers of DOM elements and web components
  • Has message bus enhancements (better clustering support and CSRF protection)
All of these changes have been discussed in previous blog posts. Nonetheless, in this post I will summarise these changes with links to the more detailed descriptions.

New Errai IoC Container

Errai 4 has a new IoC container, that supports incremental regeneration of code. The main benefit of this is to improve the performance of refreshing during Super Dev Mode. But this rewrite also allows for the possibility of migrating to annotation processors for all code generation in a future release.

The new IoC container also more closely aligns with CDI:
  • @ApplicationScoped beans must be proxiable, and are lazily loaded like in Weld
  • @Singleton is a "pseudo-scope": it need not be proxiable but cannot be part of a circular injection
  • @Typed annotation is supported
In some cases, beans may be resolved slightly differently than in Errai 3. Our upgrade guide highlights some important "gotchas" to look out for when upgrading to Errai 4.

Advanced JS Interop Support

The overarching theme of Errai 4 is working directly with JavaScript APIs and the DOM via JS Interop. If you don't already know about JS Interop, I encourage you to watch the first half of this talk by Daniel Kurka at GWTCon.

Here are the ways in which you can use JS Interop with Errai 4:
  • Use JS Interop interfaces for DOM elements or web components as @DataFields in @Templated components
  • Use JS Interop interfaces for DOM elements or web components as @Bound UI components with Errai data-binding
  • Inject JavaScript objects into your application like normal GWT/Java objects
You can read more about Errai 4 JS Interop support here and here, or view examples in the Errai Tutorial.

Message Bus Enhancements

The Errai message bus has received some love in Errai 4, with fixes that improve fail-over behaviour in clustered setups, and optional built-in CSRF protection.

Both of these are described briefly in this blog post.

Thanks to the Community

I'd like to end by thanking everyone in the Errai community who contributed to the quality of this release, through pull requests with new features and reports of important issues in our beta and candidate releases. In particular, the Errai JS Interop support was greatly improved by the important feedback from our community.

Until the next time, happy coding!

9 comments:

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    Replies
    1. i am ERIC BRUNT by name. Greetings to every one that is reading this testimony. I have been rejected by my wife after three(3) years of marriage just because another Man had a spell on her and she left me and the kid to suffer. one day when i was reading through the web, i saw a post on how this spell caster on this address AKHERETEMPLE@gmail.com have help a woman to get back her husband and i gave him a reply to his address and he told me that a man had a spell on my wife and he told me that he will help me and after 3 days that i will have my wife back. i believed him and today i am glad to let you all know that this spell caster have the power to bring lovers back. because i am now happy with my wife. Thanks for helping me Dr Akhere contact him on email: AKHERETEMPLE@gmail.com
      or
      call/whatsapp:+2349057261346




      i am ERIC BRUNT by name. Greetings to every one that is reading this testimony. I have been rejected by my wife after three(3) years of marriage just because another Man had a spell on her and she left me and the kid to suffer. one day when i was reading through the web, i saw a post on how this spell caster on this address AKHERETEMPLE@gmail.com have help a woman to get back her husband and i gave him a reply to his address and he told me that a man had a spell on my wife and he told me that he will help me and after 3 days that i will have my wife back. i believed him and today i am glad to let you all know that this spell caster have the power to bring lovers back. because i am now happy with my wife. Thanks for helping me Dr Akhere contact him on email: AKHERETEMPLE@gmail.com
      or
      call/whatsapp:+2349057261346

      Delete
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    3. WITH THE HELP OF  DR PERFECT ENLARGEMENT CREAM MY PENIS GROW  FROM 3 INCHES TO 9 INCHES YOU CAN ON EMAIL AT SOLUTIONTOALLPROBLEMS1@GMAIL.COM

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      WITH THE HELP OF  DR PERFECT ENLARGEMENT CREAM MY PENIS GROW  FROM 3 INCHES TO 9 INCHES YOU CAN ON EMAIL AT SOLUTIONTOALLPROBLEMS1@GMAIL.COM

      Hello everyone I have to give my testimony about a herbal doctor called Dr Perfect. I was heartbroken because I had a very small penis not good enough to satisfy a woman, I have been in so many relationships but they were cut off because of my situation, I have used so many products prescribed by the doctor but none could render me the help I was looking for, so I decided to search online for solution and I saw a lot of comments about this specialist called Dr Perfect on how he helped people with small penis, cancer and others so I decided to give his herbal product a try, I messaged him on WhatsApp and replied me back, he gave me some comforting words we talked on how i can receive the product and he sent me his herbal product for penis enlargement, within 1 week of using it I began to feel the enlargement of my penis, now it just two weeks of me using his products my penis is about 9 inches longer, and I settle things with my girlfriend I was surprised when she said that she is satisfied with my performance in bed and am happy that i have a big penis now all thanks to Dr Perfect feel free to contact Dr Perfect at solutiontoallproblems1@gmail.com or WhatsApp him +1(256)251-3614 and get your enlargement cream 

      Delete
  2. my name is Promise dickson Finch am from Texas USA. I want to share a testimony of how Dr. OLU herbal mixture cream saves me from shame and disgrace, my penis was a big problem to me as the size was really so embarrassing,and i was also having weak erection problem. I can make love to my wife and my penis was just too small a full grown man like me having 4 inches penis and to worsen it i don't last in sex i cant even last two minutes it was really a thing of shame to me. My wife was really tired of me because my sex life was very poor,she never enjoyed sex,i was always thinking and searching for solutions everywhere until when i saw a testimony of how Dr. OLU. herbal mixture cream have been helping people regarding their sex life, so i decided to give him a try and to my greatest surprise in less than two weeks of taking the herbs my penis grow to 8 inches i couldn't believe my eyes and as i speak now my penis is now 8 inches and i do not have weak erection again. I can make love to my wife longer in bed. And my marriage is now stable,my wife now enjoy me very well in bed. You can contact him via (drolusolutionhome@gmail.com) You can contact him today and get your problem solved.Call +2348140654426 .." or you can also contact him through his what-app +238140654426







    my name is Promise dickson Finch am from Texas USA. I want to share a testimony of how Dr. OLU herbal mixture cream saves me from shame and disgrace, my penis was a big problem to me as the size was really so embarrassing,and i was also having weak erection problem. I can make love to my wife and my penis was just too small a full grown man like me having 4 inches penis and to worsen it i don't last in sex i cant even last two minutes it was really a thing of shame to me. My wife was really tired of me because my sex life was very poor,she never enjoyed sex,i was always thinking and searching for solutions everywhere until when i saw a testimony of how Dr. OLU. herbal mixture cream have been helping people regarding their sex life, so i decided to give him a try and to my greatest surprise in less than two weeks of taking the herbs my penis grow to 8 inches i couldn't believe my eyes and as i speak now my penis is now 8 inches and i do not have weak erection again. I can make love to my wife longer in bed. And my marriage is now stable,my wife now enjoy me very well in bed. You can contact him via (drolusolutionhome@gmail.com) You can contact him today and get your problem solved.Call +2348140654426 .." or you can also contact him through his what-app +238140654426



    ReplyDelete
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    ReplyDelete
  4. i am ERIC BRUNT by name. Greetings to every one that is reading this testimony. I have been rejected by my wife after three(3) years of marriage just because another Man had a spell on her and she left me and the kid to suffer. one day when i was reading through the web, i saw a post on how this spell caster on this address AKHERETEMPLE@gmail.com have help a woman to get back her husband and i gave him a reply to his address and he told me that a man had a spell on my wife and he told me that he will help me and after 3 days that i will have my wife back. i believed him and today i am glad to let you all know that this spell caster have the power to bring lovers back. because i am now happy with my wife. Thanks for helping me Dr Akhere contact him on email: AKHERETEMPLE@gmail.com
    or
    call/whatsapp:+2349057261346




    i am ERIC BRUNT by name. Greetings to every one that is reading this testimony. I have been rejected by my wife after three(3) years of marriage just because another Man had a spell on her and she left me and the kid to suffer. one day when i was reading through the web, i saw a post on how this spell caster on this address AKHERETEMPLE@gmail.com have help a woman to get back her husband and i gave him a reply to his address and he told me that a man had a spell on my wife and he told me that he will help me and after 3 days that i will have my wife back. i believed him and today i am glad to let you all know that this spell caster have the power to bring lovers back. because i am now happy with my wife. Thanks for helping me Dr Akhere contact him on email: AKHERETEMPLE@gmail.com
    or
    call/whatsapp:+2349057261346

    ReplyDelete
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    ReplyDelete
  6. WITH THE HELP OF  DR PERFECT ENLARGEMENT CREAM MY PENIS GROW  FROM 3 INCHES TO 9 INCHES YOU CAN ON EMAIL AT SOLUTIONTOALLPROBLEMS1@GMAIL.COM

    Hello everyone I have to give my testimony about a herbal doctor called Dr Perfect. I was heartbroken because I had a very small penis not good enough to satisfy a woman, I have been in so many relationships but they were cut off because of my situation, I have used so many products prescribed by the doctor but none could render me the help I was looking for, so I decided to search online for solution and I saw a lot of comments about this specialist called Dr Perfect on how he helped people with small penis, cancer and others so I decided to give his herbal product a try, I messaged him on WhatsApp and replied me back, he gave me some comforting words we talked on how i can receive the product and he sent me his herbal product for penis enlargement, within 1 week of using it I began to feel the enlargement of my penis, now it just two weeks of me using his products my penis is about 9 inches longer, and I settle things with my girlfriend I was surprised when she said that she is satisfied with my performance in bed and am happy that i have a big penis now all thanks to Dr Perfect feel free to contact Dr Perfect at solutiontoallproblems1@gmail.com or WhatsApp him +1(256)251-3614 and get your enlargement cream 

    ReplyDelete