Just tried Profiler and it does show multiple Instances of ModelLocator
that are increasing every time I run the screen.
On Thu, Nov 13, 2014 at 3:43 PM, mark goldin <markzolo...@gmail.com> wrote:
> 1. singleton:
> package
> {
> import com.adobe.cairngorm.model.IModelLocator;
> import com.instepsoftware.prism.vo.AutoGenerated.ReportResult;
> import flash.events.EventDispatcher;
>
> [Bindable]
> public class ModelLocator extends EventDispatcher implements IModelLocator
> {
> private static var _instance:ModelLocator = new ModelLocator();
> public var healthReport:ReportResult;
>
> public function ModelLocator()
> {
> }
> public static function getInstance():ModelLocator
> {
> return _instance;
> }
> }
> }
> 2. ReportResult:
> package
> {
>
> [Bindable]
> [RemoteClass(alias=".............ReportResult")]
> public class ReportResult
> {
> public var ReportXMLDoc:String = null;
> }
> }
> Command to handle EventWhichWillPopulateData event:
> private var _Model:ModelLocator = ModelLocator.getInstance();
> public function result(data:Object):void
> {
> var re:ResultEvent = data as ResultEvent;
> _Model.healthReport = re.result as ReportResult;
> // data is here every time I run it
> }
> 3. Implementation:
> mxml file:
> creationComplete="creationCompleteHandler(event)"
> ......
> [Bindable]
> private var _ModelLocator = ModelLocator.getInstance();
> ....
> protected function creationCompleteHandler(event:FlexEvent):void
> {
> dispatchEvent(new EventWhichWillPopulateData());
> }
>
> <anothercomponenttoshowdata>
> dataProvider="{_ModelLocator.healthReport}"
> </anothercomponenttoshowdata>
> end of mxml file
>
>
> 4. anothercomponenttoshowdata:
> public function set dataProvider(value:ReportResult):void
> {
> if (value)
> {
> .......
> }
> }
>
> That is close to real code.
> I know for sure that _ModelLocator.healthReport gets data in the result
> function. The whole thing works for the one time only.
> Any consecutive run will have _ModelLocator.healthReport = null in set
> dataProvider.
>
> That's how the whole chain of questions was triggered because I started
> looking for workarounds.
>
> Sorry if that is still not clear.
>
>
> On Thu, Nov 13, 2014 at 3:19 PM, mark goldin <markzolo...@gmail.com>
> wrote:
>
>> I will try again. But this is a commercial application we are talking
>> about and it takes some effort to prepare simplified code. Otherwise I
>> would just dumb the whole damn thing.
>>
>> On Thu, Nov 13, 2014 at 3:17 PM, mark goldin <markzolo...@gmail.com>
>> wrote:
>>
>>> Agree about details. But do not with overlapping.
>>> Your label does not show its text. Can you imagine how many problems
>>> that can be caused by? But here we are talking about singletons and
>>> binding, a bit more complicated, at least for me.
>>>
>>> On Thu, Nov 13, 2014 at 3:12 PM, OmPrakash Muppirala <
>>> bigosma...@gmail.com> wrote:
>>>
>>>> On Thu, Nov 13, 2014 at 1:09 PM, mark goldin <markzolo...@gmail.com>
>>>> wrote:
>>>>
>>>> > I am very sorry for the confusion. I do have it in exactly same way.
>>>> I was
>>>> > trying not to provide too much details. What can I say ...
>>>> >
>>>> >
>>>> You should always try to provide as much detail as possible when asking
>>>> a
>>>> question. Also, please try not to create multiple threads at the same
>>>> time
>>>> talking about overlapping issues.
>>>>
>>>> Thanks,
>>>> Om
>>>>
>>>>
>>>> > On Thu, Nov 13, 2014 at 3:04 PM, Alex Harui <aha...@adobe.com> wrote:
>>>> >
>>>> > > In this example, the ‘data’ property is an Object. Properties
>>>> assigned
>>>> > to
>>>> > > Objects are not bindable. There should have been warnings in the
>>>> compile
>>>> > > output or in the console at runtime.
>>>> > >
>>>> > > If you know the set of properties on the data object, you should
>>>> define a
>>>> > > class for that.
>>>> > >
>>>> > > [Bindable]
>>>> > > public class MyModelDataSubObject
>>>> > > {
>>>> > > public var propOnData:String;
>>>> > > }
>>>> > >
>>>> > > And:
>>>> > >
>>>> > > [Bindable]
>>>> > > public class ModelLocator extends EventDispatcher implements
>>>> > IModelLocator
>>>> > > {
>>>> > > private static var _instance:ModelLocator;
>>>> > > public var data:MyModelDataSubObject;
>>>> > > public function ModelLocator(enforcer:SingletonEnforcer)
>>>> > > ..
>>>> > >
>>>> > >
>>>> > > -Alex
>>>> > >
>>>> > > On 11/13/14, 12:49 PM, "mark goldin" <markzolo...@gmail.com> wrote:
>>>> > >
>>>> > > >Something like this. A bit simplified:
>>>> > > >package
>>>> > > >{
>>>> > > >
>>>> > > >[Bindable]
>>>> > > >public class ModelLocator extends EventDispatcher implements
>>>> > IModelLocator
>>>> > > >{
>>>> > > >private static var _instance:ModelLocator;
>>>> > > >public var data:Object;
>>>> > > > public function ModelLocator(enforcer:SingletonEnforcer)
>>>> > > >{
>>>> > > >if (enforcer == null){
>>>> > > >throw new Error("You can have only one ModelLocator");
>>>> > > >}
>>>> > > >}
>>>> > > > public static function getInstance():ModelLocator{
>>>> > > > if (_instance == null){
>>>> > > >_instance = new ModelLocator(new SingletonEnforcer());
>>>> > > > }
>>>> > > > return _instance;
>>>> > > > }
>>>> > > >}
>>>> > > >}
>>>> > > >class SingletonEnforcer{}
>>>> > > >
>>>> > > >
>>>> > > >On Thu, Nov 13, 2014 at 2:44 PM, Alex Harui <aha...@adobe.com>
>>>> wrote:
>>>> > > >
>>>> > > >> Declaring a class [Bindable] does not make its sub-objects
>>>> bindable.
>>>> > > >>Show
>>>> > > >> us the code for the model’s data property.
>>>> > > >>
>>>> > > >> -Alex
>>>> > > >>
>>>> > > >> On 11/13/14, 12:31 PM, "mark goldin" <markzolo...@gmail.com>
>>>> wrote:
>>>> > > >>
>>>> > > >> >It's an object. The whole model class is Bindable.
>>>> > > >> >
>>>> > > >> >On Thu, Nov 13, 2014 at 2:11 PM, Alex Harui <aha...@adobe.com>
>>>> > wrote:
>>>> > > >> >
>>>> > > >> >> It appears you are binding to sub-objects in the model, and
>>>> they
>>>> > may
>>>> > > >>not
>>>> > > >> >> be bindable. What is _model.data?
>>>> > > >> >>
>>>> > > >> >> -Alex
>>>> > > >> >>
>>>> > > >> >> On 11/13/14, 10:49 AM, "mark goldin" <markzolo...@gmail.com>
>>>> > wrote:
>>>> > > >> >>
>>>> > > >> >> >No, they are not static. I even replaces public var ... with
>>>> > setter
>>>> > > >>and
>>>> > > >> >> >getter. Still the same.
>>>> > > >> >> >Here more code for singleton:
>>>> > > >> >> >public var data:Object;
>>>> > > >> >> >public function ModelLocator(enforcer:SingletonEnforcer)
>>>> > > >> >> >{
>>>> > > >> >> >if (enforcer == null){
>>>> > > >> >> >throw new Error("You can have only one ModelLocator");
>>>> > > >> >> >}
>>>> > > >> >> >}
>>>> > > >> >> > public static function getInstance():ModelLocator{
>>>> > > >> >> > if (_instance == null){
>>>> > > >> >> >_instance = new ModelLocator(new SingletonEnforcer());
>>>> > > >> >> > }
>>>> > > >> >> > return _instance;
>>>> > > >> >> > }
>>>> > > >> >> >class SingletonEnforcer{}
>>>> > > >> >> >
>>>> > > >> >> >
>>>> > > >> >> >In another class I am getting an instance of singleton:
>>>> > > >> >> >private var _model:ModelLocator = ModelLocator.getInstance();
>>>> > > >> >> >
>>>> > > >> >> >BindingUtils.bindSetter(onDataLoaded, _Model.data,
>>>> "propOnData");
>>>> > > >> >> >new GetDataEvent().dispatch();
>>>> > > >> >> >
>>>> > > >> >> >public function onDataLoaded(value:String):void
>>>> > > >> >> >{
>>>> > > >> >> >trace(2);
>>>> > > >> >> >if (value)
>>>> > > >> >> >{
>>>> > > >> >> >......
>>>> > > >> >> >}
>>>> > > >> >> >}
>>>> > > >> >> >
>>>> > > >> >> >this is a command that set to get data when GetDataEvent
>>>> event is
>>>> > > >> >> >triggered:
>>>> > > >> >> >
>>>> > > >> >> >public function result(data:Object):void
>>>> > > >> >> >{
>>>> > > >> >> >var re:ResultEvent = data as ResultEvent;
>>>> > > >> >> >_assetHealthModel.data = re.result as Object;
>>>> > > >> >> >trace(1);
>>>> > > >> >> >}
>>>> > > >> >> >
>>>> > > >> >> >In Console I see
>>>> > > >> >> >2
>>>> > > >> >> >1
>>>> > > >> >> >
>>>> > > >> >> >but never 2 again.
>>>> > > >> >> >
>>>> > > >> >> >Hope, it's clear.
>>>> > > >> >> >
>>>> > > >> >> >Thanks
>>>> > > >> >> >
>>>> > > >> >> >
>>>> > > >> >> >On Thu, Nov 13, 2014 at 12:37 PM, Alex Harui <
>>>> aha...@adobe.com>
>>>> > > >>wrote:
>>>> > > >> >> >
>>>> > > >> >> >>
>>>> > > >> >> >>
>>>> > > >> >> >> On 11/13/14, 10:04 AM, "mark goldin" <
>>>> markzolo...@gmail.com>
>>>> > > >>wrote:
>>>> > > >> >> >>
>>>> > > >> >> >> >Here is singleton definition:
>>>> > > >> >> >> >[Bindable]
>>>> > > >> >> >> >public class ModelLocator extends EventDispatcher
>>>> implements
>>>> > > >> >> >>IModelLocator
>>>> > > >> >> >> >
>>>> > > >> >> >> >All properties on that class are public vars.
>>>> > > >> >> >>
>>>> > > >> >> >> I’ll assume you are trying to tell me that they are not
>>>> public
>>>> > > >>static
>>>> > > >> >> >>vars?
>>>> > > >> >> >>
>>>> > > >> >> >> When we’ll need to know more about how the instance is
>>>> shared,
>>>> > > >> >>whether
>>>> > > >> >> >>you
>>>> > > >> >> >> are getting warnings and compile time or runtime, and
>>>> probably
>>>> > > >>more
>>>> > > >> >> >> details about what the symptoms are.
>>>> > > >> >> >>
>>>> > > >> >> >> -Alex
>>>> > > >> >> >>
>>>> > > >> >> >>
>>>> > > >> >>
>>>> > > >> >>
>>>> > > >>
>>>> > > >>
>>>> > >
>>>> > >
>>>> >
>>>>
>>>
>>>
>>
>
