Step two in Flex

Yet another busy day with Flex. Started the day with the intention of concentrating full time in Flex and still it wasn’t until 8 PM that I did what I wanted to do! Nevertheless, at least I have achieved my target before going home for the weekend.

After my successful integration of BlazeDS with our Spring application, this time I tried to go further. Wanted to fetch live data from database and show them in Flex data grid. First I created an action script object equivalent to my Java Object and tried to access its properties in data grid. I learnt that data grid accesses properties directly, not using getter methods, so had to change my class properties to public. I have to study action script further to find out if its really the convention.

Anyway, then I remembered, since I am using action script object from my mxml file, I will have to tell the compiler about the class when I compile it using Ant. After a lot of hassle, turns out ant tasks that adobe provides are for Flex 2 and the command parameters mentioned in the document for mxmlc doesn’t work with ant tasks! To be sure, I ran the mxmlc command manually and it worked. So now I replace the ant task for compiling with this -

<target name=”compileflex”>
<exec command=”${FLEX_HOME}/bin/mxmlc
${web.dir}/mxml/main.mxml
-source-path ${web.dir}/flexsrc
-services ${web.dir}/WEB-INF/flex/services-config.xml
-context-root /ma
-output ${build.dir}/main.swf”>
</exec>
</target>

This ant target executes the mxmlc command directly with the necessary parameters. Before reaching at this point though, I had to fight through Spring+Hibernate issues in my Dao class. The new Dao class I created couldn’t get hibernate session and had to replaced it with Spring’s jdbc template. Most probably the hibernate issue was related to OpenSessionInViewInterceptor, I will investigate it later. For now, I am really relieved and happy to see my data grid getting filled with data from server.

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