Flex Memory leaks

[Former Member]

Hello.

I have made Abap WebDynPro project with Flex Integration.

The integration works fine. But there is one problem.

Any data transmition from WebDynPro to Flash cause Memory Leak.

Simple example.

On the Flash side:

<mx:Application

    xmlns:mx="http://www.adobe.com/2006/mxml"

    layout="absolute"

    borderStyle="solid"

    textAlign="left"

    initialize = "initApp()"

    resize="ApResize()"         

    fontSize="10" xmlns:ns1="components_package.*" backgroundGradientAlphas="[1.0, 1.0]" backgroundGradientColors="[#3971BC, #3971BC]">

<mx:Script>

    <![CDATA[

[Bindable]

        public var g_DATASOURCE: ArrayCollection;

          import sap.FlashIsland;

        import mx.rpc.soap.SOAPFault;       

        import mx.collections.ArrayCollection;   

        import mx.controls.Label;

        import mx.containers.Canvas;       

        import flash.display.*;

        import mx.managers.*;

        import mx.core.IFlexDisplayObject;

        import flash.display.Stage;

        import disposable_package.*;

public function initApp():void

{

            FlashIsland.register(this);

            FlashIsland.addEventListener(FlashIsland.EVENT_END_UPDATE, initUpdate);

// Start Timer

            RefreshTimer = new Timer(5000, 0);

            RefreshTimer.addEventListener(TimerEvent.TIMER, timerEventHandler);

            RefreshTimer.start();

}

// send event to WebDynPro

private function timerEventHandler(event:TimerEvent):void

        {

            var totmem:Number = 0;

            var lv_string: String;

             lv_string = "EvRefreshTimer";

             FlashIsland.fireEvent(this, lv_string, null);

        }       

// receive answer from WebDynPro

public function initUpdate(event:Event):void

{

          var totmem:Number = 0;

          var lv_string: String;

          if (g_DATASOURCE != null )    

            {

                g_DATASOURCE.removeAll();

                g_DATASOURCE = null;

            }  

            Label2.text = "";

            totmem = (System.totalMemory / 1024);

            lv_string = String(totmem);

            lv_string = lv_string   + ' KB';

            Label2.text = lv_string;

}

]]>

</mx:Script>

<mx:Label x="580" y="12" text="Label" id="Label2" visible="false" /> 

</mx:Application>

On the WebDynPro Side:

method ONACTIONEVREFRESHTIMER .

  data: lv_node             type ref to IF_WD_CONTEXT_NODE.
  data: lt_datasource       type wd_this->ELEMENTS_G_DATASOURCE.
  data: lt_itemsource       type wd_this->ELEMENTS_G_ITEMSOURCE. 
  data: lv_element          type ref to IF_WD_CONTEXT_ELEMENT.
*----------------------------------------------------------
    clear lt_datasource[].

    lv_node = wd_context->get_child_node( wd_this->WDCTX_G_DATASOURCE ).
    lv_node->CLEAR_SELECTION( ).
    lv_node->bind_table(
      new_items = lt_datasource
      set_initial_elements = abap_true ).


endmethod.

In Label2 the number increase any time of Timer trigger.

With best regards Roman Gorobchenko.

[Former Member]

See the attached link for details.

http://stackoverflow.com/questions/1020146/why-sytem-totalmemory-keeps-increasing