thx eric, the problem is that in gwt i have to instantiate a new marker object every time i add a marker: in fact it's not possible to update the "options", but they are defined only in the constructor.So, how can i solve with this application?is there any patch for google maps api for gwt? thx,
Michela On Feb 25, 6:24 pm, Eric Ayers <[email protected]> wrote: > I've been able to reproduce a leak in pure JavaScript without any GWT. > This issue is described in the Maps API issue tracker > > http://code.google.com/p/gmaps-api-issues/issues/detail?id=945 > > I attached some sample JavaScript for creating a pool of markers > instead of removing them from the map. > > -Eric. > > On Wed, Feb 25, 2009 at 9:48 AM, koalina <[email protected]> wrote: > > > hi all, > > I've tried as suggested by jason with this semplified piece of code: > > public class MainEntryPoint implements EntryPoint{ > > > private Marker marker; > > private MapWidget map; > > > public MainEntryPoint() { > > } > > > /** > > * The entry point method, called automatically by loading a > > module > > * that declares an implementing class as an entry-point > > */ > > public void onModuleLoad() { > > > map = new MapWidget(LatLng.newInstance(38.1890087, > > 15.5648162), 12); > > > map.checkResizeAndCenter(); > > RootPanel.get().add(map); > > Timer t = new Timer(){ > > �...@override > > public void run() { > > for (int i = 0; i < 10; i++) > > { > > map.clearOverlays(); > > map.addOverlay(createMarker()); > > } > > } > > }; > > t.scheduleRepeating(3000); > > > //180209Miki:per prima cosa devo caricare le api > > *dinamicamente* > > //...poi tutto il resto di conseguenza > > > //lookupKey(Window.Location.getHost()); > > > } > > public Marker createMarker() > > { > > marker = null; > > marker = new Marker(LatLng.newInstance(new Double(15), new > > Double(38))); > > return marker; > > > } > > } > > > I would expect memory doesn't increase.. it doesn't > > clearOverlays does not remove references with ie7 > > any workaround...? > > please help, thx, > > Michela > > > On 24 Feb, 20:22, koalina <[email protected]> wrote: > >> commenting the addOverlay, memory usage is costant... > >> that's why i think there's something wrong with the clearOverlays.. > >> thx for help, > >> michela > > >> On Feb 24, 5:47 pm, Eric Ayers <[email protected]> wrote: > > >> > Yeah, you are right. > > >> > One thing you could try is to comment out the 'addOverlay()' call and > >> > measure your memory again. You won't see anything, but it will tell > >> > you if this is the problem. > > >> > On Tue, Feb 24, 2009 at 11:39 AM, koalina <[email protected]> wrote: > > >> > > but i call the clerOverlays each time i run the timer.. at each loop > >> > > the markers should be deallocated... aren't they? > >> > > Michela > > >> > > On 24 Feb, 17:31, Eric Ayers <[email protected]> wrote: > >> > >> Think about what your code is doing here. > > >> > >> You are allocating marker objects and adding them to the map every > >> > >> time your timer expires. > >> > >> The map will track these things for you until you call > >> > >> map.removeOverlay(). > > >> > >> My guess is that you have hundreds of markers added to the map, all > >> > >> stacked on top of each other. > > >> > >>http://gwt-google-apis.googlecode.com/svn/javadoc/maps/1.0/index.html > > >> > >> On Tue, Feb 24, 2009 at 6:57 AM, koalina <[email protected]> wrote: > > >> > >> > Hi all, I've found the cause of the memory leak isolating by some > >> > >> > piece of code. It seems not to be caused by gwt-ext but when I make > >> > >> > the map.addOverlay(createMarker(point, myObject)); > > >> > >> > where createMarker is: > > >> > >> > Icon icon = Icon.newInstance(baseIcon); > > >> > >> > icon.setImageURL(GWT.getModuleBaseURL()+"images/"+getColor > >> > >> > (nave)+"_ship.png"); > > >> > >> > GWT.log("Carico immagine "+icon.getImageURL(), null); > >> > >> > LabeledMarkerOptions options = > >> > >> > LabeledMarkerOptions.newInstance > >> > >> > (); > >> > >> > options.setTitle(nave.getNomeNave()); > >> > >> > options.setIcon(icon); > > >> > >> > options.setLabelText(String.valueOf(nave.getIdNave())); > > >> > >> > options.setLabelClass("labeledMarker"); > > >> > >> > //200209Miki: se l'id nave è lungo una solo cifra va bene > >> > >> > così... > >> > >> > if((Integer.toString(nave.getIdNave())).length()==1) > >> > >> > options.setLabelOffset(Size.newInstance(1, -26)); > >> > >> > //altrimenti devo shiftare la label di due posti a > >> > >> > sinistra... > >> > >> > else > >> > >> > options.setLabelOffset(Size.newInstance(-2, -26)); > >> > >> > // > > >> > >> > LabeledMarker marker = new LabeledMarker(point, options); > > >> > >> > ((Marker)marker).addMarkerClickHandler(new MarkerClickHandler > >> > >> > () { > > >> > >> > public void onClick(MarkerClickEvent event) { > >> > >> > //050209Miki: gestisco qui il popup informativo > >> > >> > InfoWindow info = map.getInfoWindow(); > >> > >> > info.open(event.getSender(), > > >> > >> > new InfoWindowContent( > >> > >> > "<div style='width:150px;height:65px; font-size:12px' > >> > >> > " + > >> > >> > "class='info-window'>" + > >> > >> > //"<p><img width='35px' src='"+GWT.getModuleBaseURL() > >> > >> > +"'images/logonave.png' align='left'></p>" + > >> > >> > "Nome nave: <b>"+nave.getNomeNave()+"</b><br/>" + > >> > >> > "Localita' Partenza: " +nave.getLocalitaPartenza() > >> > >> > +"<br/>" + > >> > >> > "Localita' Arrivo: "+nave.getLocalitaPartenza()+"<br/ > >> > >> >>" //+ > >> > >> > //"Merci Pericolose a Bordo: " + > >> > >> > nave.getMerciPericolose()+"<br/></div>" > >> > >> > )); > > >> > >> > } > > >> > >> > }); > > >> > >> > return marker; > > >> > >> > It' squite strange but now I'm sure the issue is with this piece of > >> > >> > code.. > >> > >> > is map.clearOverlays(); sufficient to deallocate the previous > >> > >> > markers? > >> > >> > thx, > >> > >> > Michela > > >> > >> > On 24 Feb, 10:56, Alexey_Tsiunchik <[email protected]> > >> > >> > wrote: > >> > >> >> Hello, > > >> > >> >> We already have discussion about GWT memory management > >> > >> >> here:http://groups.google.com/group/Google-Web-Toolkit/browse_thread/threa... > > >> > >> >> Tuesday, February 24, 2009, 11:31:44 AM, you wrote: > > >> > >> >> > I've tried reloading, I made a mistake some posts ago.. memory > >> > >> >> > decreases only if the browser is closed and then opened again. > >> > >> >> > Only > >> > >> >> > reloading causes a bigger increment of memory usage. > >> > >> >> > On 24 Feb, 10:20, koalina <[email protected]> wrote: > >> > >> >> >> Hi alex, > >> > >> >> >> sorry but I can't see how fix the number of rows as I'm using a > >> > >> >> >> memoryProxy object. > >> > >> >> >> So, the timer is defined as follows: > >> > >> >> >> Timer t = new Timer() { > > >> > >> >> >> public void run() { > >> > >> >> >> getShipInfo(); > > >> > >> >> >> } > > >> > >> >> >> }; > >> > >> >> >> where getShipInfo() is > > >> > >> >> >> private void getShipInfo() { > > >> > >> >> >> > >> > >> >> >> MainEntryPoint.getServiceWsNaviInMare().getInfoNaviInMare(new > >> > >> >> >> AsyncCallback() { > > >> > >> >> >> public void onFailure(Throwable caught) { > >> > >> >> >> throw new UnsupportedOperationException("Not > >> > >> >> >> supported > >> > >> >> >> yet."); > >> > >> >> >> } > > >> > >> >> >> public void onSuccess(Object result) { > >> > >> >> >> Vector listaNavi = (Vector) result; > >> > >> >> >> GWT.log("Lista Navi Ricevuta: > >> > >> >> >> "+listaNavi.toString(), > >> > >> >> >> null); > >> > >> >> >> if (listaNavi.size()>0) { > > >> > >> >> >> Object[][] data = new > >> > >> >> >> Object[listaNavi.size()] > >> > >> >> >> [15]; > >> > >> >> >> Iterator i = listaNavi.iterator(); > >> > >> >> >> int index = 0; > > >> > >> >> >> while (i.hasNext()) { > >> > >> >> >> Nave unaNave = (Nave) i.next(); > >> > >> >> >> data[index] = new Object[]{ > >> > >> >> >> unaNave.getIdNave(), > >> > >> >> >> unaNave.getNomeNave > >> > >> >> >> (), > > >> > >> >> >> unaNave.getLocalita(), > >> > >> >> >> unaNave.getImbarco > >> > >> >> >> (), > > >> > >> >> >> etc.... > > >> > >> >> >> GWT.log("Nave > >> > >> >> >> "+data[index][0]+data[index] > >> > >> >> >> [1].toString(), null); > > >> > >> >> >> index++; > >> > >> >> >> unaNave = null; > > >> > >> >> >> } > >> > >> >> >> if (store!=null) { > >> > >> >> >> store.removeAll(); > >> > >> >> >> } > >> > >> >> >> MemoryProxy proxy = new MemoryProxy(data); > >> > >> >> >> ArrayReader reader = new > >> > >> >> >> ArrayReader(recordDef); > >> > >> >> >> store = new Store(proxy, reader); > >> > >> >> >> store.load(); > >> > >> >> >> store.commitChanges(); > > >> > >> >> >> grid.reconfigure(store, columnModel); > >> > >> >> >> > > ... > > read more » --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. 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