OK, I haven't examined the code in detail but it looks fine, the problem
is you are calling getJourneyContainer before setJourneyContainer
You do this first:
this.__startWidget = new travelagent..StartWidget(componentData);
This will call the constructor which is where you are calling
getJourneyContainer. Then after the constructor returns you are
setting it
this.__startWidget.setJourneyContainer("test0rn");
You need to rearrange your code
> properties: {
> journeyContainer : {inheritable:true, deferredInit: true}
you could add an apply key to this
> properties: {
> journeyContainer : {inheritable:true, deferredInit: true, apply :
"_applyJourneyContainer"}
You can then add a function to your class that will get called when you
set the property
_applyJourneyContainer : function(value)
{
alert(value);
}
Hope that helps!
Matt
Robert Wende wrote:
> Hi Matt,
>
> my abstract class looks like:
>
> qx.Class.define("travelagent.impl.fe.travelplaner.uis.AbstractMediator",
> {
> type: "abstract",
> extend: qx.ui.container.Composite,
>
> properties: {
> journeyContainer : {inheritable:true, deferredInit: true}
> },
>
> members: {
> /**
> * @abstract
> */
> edit: function() {return true;},
> openMap: function() {return true;},
> save: function() {return true;},
> update: function(e) {return true;}
>
> }
> });
>
> then i derive a DestinationWidget:
>
> qx.Class.define("travelagent.impl.fe.travelplaner.uis.DestinationWidget",{
>
> type: "abstract",
> extend: travelagent.impl.fe.travelplaner.uis.AbstractMediator,
>
> properties: {
> destinationData : {inheritable:true, deferredInit:true, check :
> "travelagent.impl.data.DestinationData"},
> clockWidget : {inheritable:true, deferredInit:true},
> calendarWidget : {inheritable:true, deferredInit:true},
> mapWidget : {inheritable:true, deferredInit:true}
> },
>
> members:{
> openMap:function(){
> return true;
> }
> }
> });
>
> and in my StartWidget, i want to use the journeyContainer-Prop from the
> AbstractMediator.
>
> qx.Class.define("travelagent.impl.fe.travelplaner.uis.StartWidget",{
>
> extend:travelagent.impl.fe.travelplaner.uis.DestinationWidget,
>
>
> construct: function(data){
>
> this.base(arguments);
> this.initDestinationData(data);
>
> this.__buildLayout(); //external method for the layout
>
> alert(this.getJourneyContainer()); //test the prop
> },
> ...
> }
>
> The alert-methode give my the following: null
>
> I set the JourneyContainer-Prop in another class:
>
> qx.Class.define("travelagent.impl.fe.travelplaner.TravelplanerContainer", {
> extend : qx.ui.container.Scroll,
> construct : function() {
> this.base(arguments);
> this.set({
> width : 1024,
> height : 400
> });
>
> var layout = new qx.ui.layout.VBox().set({
> spacing : 5
> // alignX: "center"
> });
>
> this.__journeyContainer = new
> qx.ui.container.Composite(layout).set({
> padding : 20,
> width : 1008,
> backgroundColor : "white"
> });
>
> this.__journeyContainer.setAllowStretchX(false);
> this.add(this.__journeyContainer);
>
> this.__journeyContainer.add(new
> qx.ui.basic.Label("Travelplan"));
>
> // init dummywidgets
> var start = new travelagent.impl.data.DestinationData();
> start.setType("StartWidget");
> var goal = new travelagent.impl.data.DestinationData();
> goal.setType("GoalWidget");
> var waypoint = new travelagent.impl.data.DestinationData();
> waypoint.setType("WaypointWidget");
> var waypoint2 = new travelagent.impl.data.DestinationData();
> waypoint2.setType("WaypointWidget");
> var waypoint3 = new travelagent.impl.data.DestinationData();
> waypoint3.setType("WaypointWidget");
>
> goal.setPrev(waypoint);
> waypoint.setPrev(start);
> waypoint2.setPrev(waypoint);
> waypoint3.setPrev(waypoint2);
> ...
> this.addWidget(start);
>
>
>
> },
>
> members : {
> // ref to component
> __journeyContainer : null,
> __startWidget : null,
> __goalWidget : null,
>
> /**
> * Adds a widget to the travel plan. Therefore the type of the
> given
> * data object is checked.
> *
> * @param componentData
> * {IComponentData} The data object of the widget to
> add.
> */
> addWidget : function(componentData) {
> switch (componentData.getType()) {
> case "StartWidget" :
> this.__startWidget = new
> travelagent.impl.fe.travelplaner.uis.StartWidget(componentData);
>
> this.__startWidget.setJourneyContainer("test0rn");
>
> this.__journeyContainer.add(this.__startWidget);
> ...
>
> I hope this helps,
> Thanks
>
>
>
> -------- Original-Nachricht --------
>> Datum: Wed, 03 Jun 2009 16:10:02 +0100
>> Von: Matthew Gregory <[email protected]>
>> An: [email protected]
>> Betreff: Re: [qooxdoo-devel] Property usage
>
>>> now i have a new problem with my property.
>>> Another class set the journeyContainer:
>>>
>>> this.__startWidget.setJourneyContainer(this)
>>>
>>> when i call the getter in the startWidget, i get a null value. why? i
>> thought that the property is inherit from AbstractMediator to StartWidget.
>>
>> That should work, any chance of a bit more code? Would be good if you
>> could post the code that creates the class, sets the property and then
>> where the property is being read
>>
>>> My second problem concerns the init-process.
>>>
>>> i have tried the following:
>>>
>>> properties: {
>>> newTest:{nullable:true} //i guess this is the same like newTest = null;
>>> }
>>>
>>> now i want to init the property in my constructor like:
>>>
>>> this.initNewTest("hello");
>>>
>>> Firebug says that the function ist undefined. how can i init my
>> properties?
>>
>> (not 100% sure about the accuracy of this statement) Nullable properties
>> are initialized to null by default, use setTest() instead. Or you could
>> add an init value to the property
>>
>> > newTest:{nullable:true, init:"hello"}
>>
>> This only works well for "simple" types though, arrays and objects are
>> initialized by reference and not value
>>
>>
>>
>>
>> ------------------------------------------------------------------------------
>> OpenSolaris 2009.06 is a cutting edge operating system for enterprises
>> looking to deploy the next generation of Solaris that includes the latest
>> innovations from Sun and the OpenSource community. Download a copy and
>> enjoy capabilities such as Networking, Storage and Virtualization.
>> Go to: http://p.sf.net/sfu/opensolaris-get
>> _______________________________________________
>> qooxdoo-devel mailing list
>> [email protected]
>> https://lists.sourceforge.net/lists/listinfo/qooxdoo-devel
>
------------------------------------------------------------------------------
OpenSolaris 2009.06 is a cutting edge operating system for enterprises
looking to deploy the next generation of Solaris that includes the latest
innovations from Sun and the OpenSource community. Download a copy and
enjoy capabilities such as Networking, Storage and Virtualization.
Go to: http://p.sf.net/sfu/opensolaris-get
_______________________________________________
qooxdoo-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/qooxdoo-devel
