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Posted to users@flex.apache.org by Angelo Lazzari <an...@redtulp.com> on 2015/10/19 18:57:37 UTC
FlexJS: migration tutorial
Hi all, i have a few flex mobile apps that i think they could be a good
initial test for the porting to FlexJS.
Are there any tutorial or documentation that i can use to port my apps to
FlexJS?
Actually my apps use: Flex 14.1 for the Front end, Robotlegs tecnique to
implement Model, view Controller, Services + inversion of Control + Dependency
injection and GraniteDS for the comunication with the Java backend.
So, do you think that i could do it?
Thank you very much
Angelo
Re: FlexJS: migration tutorial
Posted by Harbs <ha...@gmail.com>.
HI Dolly,
Good to see you here! (I do know you, right?)
Great to see you interested in FlexJS!
Harbs
On Oct 21, 2015, at 4:53 PM, Dolly <do...@webrandit.co.uk> wrote:
> Documents which explain how FlexJs is different from standard flex; how
> Model/view/Controller interact; who dispatches viewChanged event.. etc.. I
> am sure as i start to experiment more things will be clearer to me. My
> queries might be a little amateurish, especially since i have never worked
> with Javascript before but I am sure many other developers will be in same
> situation as me.
>
> For FlexJS with Flash Builder - I took help from this page -
> https://cwiki.apache.org/confluence/display/FLEX/Using+FlexJS+with+Adobe+Flash+Builder
>
> The installer did not work for me. I then installed ant and followed the
> alternate steps for FlexJS 0.0.2. Upon running DatabindingTest, there were a
> couple of unexplained exceptions. Then i found FlexJS 0.5.0 zip somewhere in
> the pages and the sample application worked fine with it.
>
> My wiki username is dolly.sapra - however I am not sure what to write where
> and it'll be a few days(weeks?) before I have something concrete to share.
>
> ~Dolly
>
>
>
>
> --
> View this message in context: http://apache-flex-users.2333346.n4.nabble.com/FlexJS-migration-tutorial-tp11348p11361.html
> Sent from the Apache Flex Users mailing list archive at Nabble.com.
Re: FlexJS: migration tutorial
Posted by Alex Harui <ah...@adobe.com>.
On 10/21/15, 8:08 AM, "Brian Head" <br...@nelsonautogroup.net> wrote:
>Alex, I have a huge project that I am anxious to get to FlexJS. I am
>trying to get to market in the Auto Industry, so I am very busy writing
>the
>application in FB now.
>
>I am looking to migrate it in the future and would love to help when I get
>to that point. I am anxiously watching how Dollys wiki goes.
Sounds good. If you are developing an app using the regular Flex SDK, I
would be careful not to rely on too many of the Flash things like E4x and
Dictionary and try to use JSON instead of XML.
-Alex
Re: FlexJS: migration tutorial
Posted by Brian Head <br...@nelsonautogroup.net>.
Alex, I have a huge project that I am anxious to get to FlexJS. I am
trying to get to market in the Auto Industry, so I am very busy writing the
application in FB now.
I am looking to migrate it in the future and would love to help when I get
to that point. I am anxiously watching how Dollys wiki goes.
Brian Head
cell:918-830-2732
Director of Operations
Nelson Auto Group
On Wed, Oct 21, 2015 at 10:06 AM, Alex Harui <ah...@adobe.com> wrote:
>
>
> On 10/21/15, 6:53 AM, "Dolly" <do...@webrandit.co.uk> wrote:
> >
> >For FlexJS with Flash Builder - I took help from this page -
> >
> https://cwiki.apache.org/confluence/display/FLEX/Using+FlexJS+with+Adobe+F
> >lash+Builder
> >
> >The installer did not work for me. I then installed ant and followed the
> >alternate steps for FlexJS 0.0.2. Upon running DatabindingTest, there
> >were a
> >couple of unexplained exceptions. Then i found FlexJS 0.5.0 zip somewhere
> >in
> >the pages and the sample application worked fine with it.
>
> I see. You are still working with the year-old release. We are trying to
> get a release out as we speak. Hopefully it will work better.
>
> >
> > My wiki username is dolly.sapra - however I am not sure what to write
> >where
> >and it'll be a few days(weeks?) before I have something concrete to share.
>
> I gave you write access. There is no obligation to write anything and the
> good things about wikis is that they are relatively easy to edit so you
> can modify anything you write later. You could just start a page called
> “Dolly’s FlexJS Migration Notes” and update it with your experiences.
>
> -Alex
>
>
Re: FlexJS: migration tutorial
Posted by Alex Harui <ah...@adobe.com>.
On 10/21/15, 6:53 AM, "Dolly" <do...@webrandit.co.uk> wrote:
>
>For FlexJS with Flash Builder - I took help from this page -
>https://cwiki.apache.org/confluence/display/FLEX/Using+FlexJS+with+Adobe+F
>lash+Builder
>
>The installer did not work for me. I then installed ant and followed the
>alternate steps for FlexJS 0.0.2. Upon running DatabindingTest, there
>were a
>couple of unexplained exceptions. Then i found FlexJS 0.5.0 zip somewhere
>in
>the pages and the sample application worked fine with it.
I see. You are still working with the year-old release. We are trying to
get a release out as we speak. Hopefully it will work better.
>
> My wiki username is dolly.sapra - however I am not sure what to write
>where
>and it'll be a few days(weeks?) before I have something concrete to share.
I gave you write access. There is no obligation to write anything and the
good things about wikis is that they are relatively easy to edit so you
can modify anything you write later. You could just start a page called
“Dolly’s FlexJS Migration Notes” and update it with your experiences.
-Alex
Re: FlexJS: migration tutorial
Posted by Dolly <do...@webrandit.co.uk>.
Documents which explain how FlexJs is different from standard flex; how
Model/view/Controller interact; who dispatches viewChanged event.. etc.. I
am sure as i start to experiment more things will be clearer to me. My
queries might be a little amateurish, especially since i have never worked
with Javascript before but I am sure many other developers will be in same
situation as me.
For FlexJS with Flash Builder - I took help from this page -
https://cwiki.apache.org/confluence/display/FLEX/Using+FlexJS+with+Adobe+Flash+Builder
The installer did not work for me. I then installed ant and followed the
alternate steps for FlexJS 0.0.2. Upon running DatabindingTest, there were a
couple of unexplained exceptions. Then i found FlexJS 0.5.0 zip somewhere in
the pages and the sample application worked fine with it.
My wiki username is dolly.sapra - however I am not sure what to write where
and it'll be a few days(weeks?) before I have something concrete to share.
~Dolly
--
View this message in context: http://apache-flex-users.2333346.n4.nabble.com/FlexJS-migration-tutorial-tp11348p11361.html
Sent from the Apache Flex Users mailing list archive at Nabble.com.
Re: FlexJS: migration tutorial
Posted by Alex Harui <ah...@adobe.com>.
Hi Dolly,
Yes, you are working with a beta, so things are less polished. What kinds
of documentation are you looking for? What issues did you find with
integrating FlexJS in FB?
If you have time to help write some of the documentation on the Wiki, we
can give you write access. Create an account on the wiki and let me know
what the username is (but not the password).
Thanks,
-Alex
On 10/21/15, 4:21 AM, "Dolly" <do...@webrandit.co.uk> wrote:
>Hi Alex,
>
>I am trying to recreate some parts of my flex application for html/css
>using
>flexJS. And I am stumped because of lack of documentation. Also, in a few
>places installation instructions for integrating FlexJS with Flex Builder
>were wrong (outdated?). I would like to help in documentation too, if I
>can
>get to understand everything myself!
>
>~Dolly
>
>
>
>
>
>--
>View this message in context:
>http://apache-flex-users.2333346.n4.nabble.com/FlexJS-migration-tutorial-t
>p11348p11359.html
>Sent from the Apache Flex Users mailing list archive at Nabble.com.
Re: FlexJS: migration tutorial
Posted by Dolly <do...@webrandit.co.uk>.
Hi Alex,
I am trying to recreate some parts of my flex application for html/css using
flexJS. And I am stumped because of lack of documentation. Also, in a few
places installation instructions for integrating FlexJS with Flex Builder
were wrong (outdated?). I would like to help in documentation too, if I can
get to understand everything myself!
~Dolly
--
View this message in context: http://apache-flex-users.2333346.n4.nabble.com/FlexJS-migration-tutorial-tp11348p11359.html
Sent from the Apache Flex Users mailing list archive at Nabble.com.
Re: FlexJS: migration tutorial
Posted by Alex Harui <ah...@adobe.com>.
Hi Angelo,
Comments inline.
On 10/19/15, 9:57 AM, "Angelo Lazzari" <an...@redtulp.com> wrote:
>Hi all, i have a few flex mobile apps that i think they could be a good
>initial test for the porting to FlexJS.
>
>Are there any tutorial or documentation that i can use to port my apps to
>FlexJS?
We don’t have tutorials or docs yet. Would you be willing to help us
write it? We could give you write access to the wiki. Basically, we need
pioneers like you to help us figure out best practices for migration by
trying to migrate something.
>
>Actually my apps use: Flex 14.1 for the Front end, Robotlegs tecnique to
>implement Model, view Controller, Services + inversion of Control +
>Dependency
>injection and GraniteDS for the comunication with the Java backend.
>
>So, do you think that i could do it?
I do have some pre-formed ideas about migration that are scattered
throughout the wiki and some presentation materials. Let me summarize
them here:
At least for now, FlexJS will not have a way to 100% reproduce everything
you could do in your Flex application code base. Some things are going to
be hard to implement, or may have performance issues if they do get
implemented. The list includes things like:
E4X
XML
AMF
Dictionary
Weak References
Event Priority
Deferred DisplayList Updates
My current philosophy is that, instead of investing energy trying to
implement these capabilities, folks may have to re-write sections of their
code to use, for example, JSON instead of E4X, XML, and AMF. IMO, if
FlexJS didn’t exist, you would have to migrate away from E4X, XML and AMF
anyway, so what FlexJS really does is just give you fewer things to
migrate. Hopefully, most of your other AS code will cross-compile with
little modification.
Note that I said “AS” code. For your MXML tags, there is currently a bit
more re-writing to do for now because we haven’t found time to create a
component set that more closely matches the Spark and/or MX components.
Note that I say “for now” because I keep hoping someone will help us
create these more backward-compatible component sets since lots of folks
are asking for it. I do not promise 100% API compatibility with Spark and
MX because there are some Flash-dependent things in the API like the
assumption that you have Dictionary and weak references in the runtime. I
did port the FlexStore example from Spark to FlexJS so there is an example
you can reference when trying to port your UI. But you may also consider
whether it is worth “upgrading” your UI instead of simply migrating it in
order to take advantage of newer popular UI paradigms.
Now for the AS code. A good quick check is to grep for ‘import flash’ to
see which AS files have Flash dependencies. Hopefully there are very few
if any in your code and dependent libraries like RobotLegs. Where there
are dependencies, the question is whether it is possible to emulate it, or
whether that code should be replaced. It is pretty easy to fake an event.
So, hopefully you can help us out by being a pioneer and documenting your
migration journey. We’ll try to answer questions as quickly as we can.
Thanks,
-Alex