Chocodonut's Note :: RemoteObject

2008/08/02 00:23

RemoteObject

2008/08/02 00:23 in Flex

- HTTP 프로토콜을 사용해 WAS에 배포된 Java Beans 함수를 호출하여 그 결과를 객체 형식(바이너리 형식)으로
되돌려 받는다.
- LiveCycle Data Services를 반드시 사용해야 하고 config 파일도 설정해야 한다(AMF 채널 설정과 Java Beans
객체의 destination 등록).
- mx.rpc.remoting.mxml.RemoteObject 패키지에 포함.
- RemoteObject method를 정의해야 한다(method 태그와 arguments 태그 사용).
- RemoteObject 인스턴스.method 이름() 메소드를 사용해 RemoteObject를 호출한다.

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
  <mx:Script>
    <![CDATA[
      import mx.controls.Alert;       
      import mx.rpc.events.FaultEvent;
      import mx.rpc.events.ResultEvent;
            
      private function resultHandler(event:ResultEvent):void {
          DG.dataProvider = event.result;
      }
            
      private function faultHandler(event:FaultEvent):void {
          Alert.show(event.fault.message);
      }
    ]]>
  </mx:Script>

<mx:RemoteObject id="MyRemoteObject" destination="MyDest"
    result="resultHandler(event)" fault="faultHandler(event)"
    showBusyCursor="true">
    <mx:method name="getList">
      <mx:arguments> 
        <id>{CB.selectedItem.data}</id>
      </mx:arguments>
    </mx:method>
  </mx:RemoteObject>

<mx:Button x="10" y="10" label="RemoteObject 호출"
    click="MyRemoteObject.getList()"/>
  <mx:DataGrid id="DG" x="10" y="40"/>
  <mx:ComboBox id="CB" x="10" y="190">
    <mx:dataProvider>
      <mx:Array>
        <mx:Object label="첫번째" data="0"/>
        <mx:Object label="두번째" data="1"/>
        <mx:Object label="세번째" data="2"/>
      </mx:Array>
    </mx:dataProvider>
  </mx:ComboBox>
</mx:Application>

- ActionScript를 이용한 예제.

<?xml version="1.0" encoding="utf-8"?>
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
  <mx:Script>
    <![CDATA[
      import mx.controls.Alert;
      import mx.rpc.remoting.mxml.RemoteObject;
      import mx.rpc.events.FaultEvent;
      import mx.rpc.events.ResultEvent;

private function f():void {
          var MyRemoteObject:RemoteObject = new RemoteObject();
          MyRemoteObject.destination = "MyDest";
          MyRemoteObject.showBusyCursor = "true";
          MyRemoteObject.addEventListener(ResultEvent.RESULT, resultHandler);
          MyRemoteObject.addEventListener(FaultEvent.FAULT, faultHandler);
          
          var obj:Object = new Object();
          obj.id = CB.selectedItem.data;
          MyRemoteObject.getList(obj);
      }

private function resultHandler(event:ResultEvent):void {
          DG.dataProvider = event.result;
      }

private function faultHandler(event:FaultEvent):void {
          Alert.show(event.fault.message);
      }
    ]]>
  </mx:Script>

<mx:Button x="10" y="10" label="RemoteObject 호출" click="f()"/>
  <mx:DataGrid id="DG" x="10" y="40"/>
  <mx:ComboBox id="CB" x="10" y="190">
    <mx:dataProvider>
      <mx:Array>
        <mx:Object label="첫번째" data="0"/>
        <mx:Object label="두번째" data="1"/>
        <mx:Object label="세번째" data="2"/>
      </mx:Array>
    </mx:dataProvider>
  </mx:ComboBox>
</mx:Application>

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