Re: [Gwt-openlayers-users] WFS layers with GWT-OpenLayers

[Alexandre A. S. <aas...@gm...>]

You're missing a CallBack object to populate all the features retrieved from geoserver in the layer and a proxy to get data from the server in Javascript.
Have a look to my code, it works for me.

		    OpenLayers.setProxyHost("gwtOpenLayersProxy?targetURL=");
		    
		   VectorOptions vectorOptions =  new VectorOptions();
		   Vector eventsLayer = new Vector("Events", vectorOptions);		    		
			
		    WFSProtocolOptions wfsProtocolOptions = new WFSProtocolOptions("http://your-host/geoserver/ows","your-namespace", "your-wfs-layer");		   	
		    wfsProtocolOptions.setGeometryName(your-geometry-field);
		    wfsProtocolOptions.setSrsName("EPSG:4326");
		    wfsProtocolOptions.setVersion("1.1.0");
		    		   
		    
		    WFSProtocol wfsProtocol = new WFSProtocol(wfsProtocolOptions);
		   // WFS Protocol is asynchronous, so we need to use a callback
		    Callback callback = new Callback() {
			    public void computeResponse(Response response) {
			    	try
			    	{			    								
				    	VectorFeature[] features = response.getFeatures();
				    	for ( VectorFeature feature : features ) {
							//Apply style depending on any attribute of you feature
                                                        Style style = new Style();													
							style.setPointRadius(5);
							style.setFillColor("#00FF00");				
							feature.setStyle(style);
						}
				    	eventsLayer.addFeatures(features);						    	
				    	
			    	}
			    	catch (Exception ex)
			    	{
			    		//ERROR
			    	}
				}
			};			
			WFSProtocolCRUDOptions options = new WFSProtocolCRUDOptions(callback);			
			wfsProtocol.read(options);	    	

 
Hope it helps,
Alex.
________________________________________
De: Jon Britton [jon...@go...]
Enviado el: miércoles, 20 de abril de 2011 13:12
Para: gwt-openlayers-users
Asunto: [Gwt-openlayers-users] WFS layers with GWT-OpenLayers

Hi,

I'm trying to add a WFS layer to my map but it's not displaying. Here is my code:


WFSProtocolOptions  wfsProtocolOptions = new WFSProtocolOptions();
wfsProtocolOptions.setUrl(featureType.getServiceUrl());
wfsProtocolOptions.setFeatureType(featureType.getName());
WFSProtocol wfsProtocol = new WFSProtocol(wfsProtocolOptions);
VectorOptions vectorOptions =  new VectorOptions();
vectorOptions.setProtocol(wfsProtocol);
vectorOptions.setStrategies(new Strategy[]{new BBoxStrategy()});

mapLayer = new Vector(featureType.getName(), vectorOptions);

SmartWPS.getSmartWPS().getMap().addLayer(mapLayer);


Where the url is "http://li199-25.members.linode.com:8080/geoserver/wfs" and the layer name is "topp:tasmania_roads".  I got this code from the showcase so I assumed it was all I needed.

Am I missing something? BTW the WFS is public if anybody wants to try it out :-)

Thanks,

Jon

______________________
This message including any attachments may contain confidential 
information, according to our Information Security Management System,
 and intended solely for a specific individual to whom they are addressed.
 Any unauthorised copy, disclosure or distribution of this message
 is strictly forbidden. If you have received this transmission in error,
 please notify the sender immediately and delete it.

______________________
Este mensaje, y en su caso, cualquier fichero anexo al mismo,
 puede contener informacion clasificada por su emisor como confidencial
 en el marco de su Sistema de Gestion de Seguridad de la 
Informacion siendo para uso exclusivo del destinatario, quedando 
prohibida su divulgacion copia o distribucion a terceros sin la 
autorizacion expresa del remitente. Si Vd. ha recibido este mensaje 
 erroneamente, se ruega lo notifique al remitente y proceda a su borrado. 
Gracias por su colaboracion.

______________________