Hi,
Parse the Json with someting like:
JSONValue reply = JSONParser.parse(resp);
Test test = (Test) reply.isObject().getJavaScriptObject();
and where you have to use the data :
test.getCode();
test.getNetworks();
Test overlay is someting like:
public class Testextends JavaScriptObject {
protected Test() {
}
public final native int getCode() /*-{
return this.code;
}-*/;
public final native JsArray<String> getNetworks() /*-{
return this.networks;
}-*/;
}
I'm not sure if you can use String on JsArray generic overlay bu i
hope you get the idea.
gerste ha escrito:
> Hello,
>
> I have a question regarding overlay types, as I have the feeling I
> misunderstood something.
>
> I'm returning a JSON encoded String from a php application in the
> following format.
>
> {
> "Code" : 0,
> "Networks" : [ "net1" , "net2" , "net3 " ]
> }
>
> I implemented a small class extending JavaScriptObject. Other classes
> extend this class and call on these get methods through their final
> non-native methods.
>
> public abstract class JavaScriptObjectOverlay extends JavaScriptObject
> {
>
> protected JavaScriptObjectOverlay() {}
>
> public static final native <T extends JavaScriptObject> T fromJson
> (String json)
> /*-{
> return eval('(' + json + ')');
> }-*/;
>
> public static final native <T extends JavaScriptObject> JsArray<T>
> fromJsonAsArray(String json)
> /*-{
> return eval('(' + json + ')');
> }-*/;
>
> public final native String get(String key)
> /*-{
> return "" + this[key];
> }-*/
>
> public final native <T extends JavaScriptObject> JsArray<T> getArray(
> String key)
> /*-{
> return this[key] ? this[key] : new Array();
> }-*/;
>
> public final int getInt(String key) {
> return Integer.parseInt(get(key));
> }
>
> }
>
> In my other class I call using the string of the response:
>
> JavaScriptObjectOverlay responseJson = JavaScriptObjectOverlay.fromJson
> (response.getText());
>
> When I try to do something like this now:
>
> int code = responseJson.getInt("Code");
>
> this works fine, but if I call:
>
> JsArray<JavaScriptObject> a = this.getArray("Networks");
> JavaScriptObject a.get(i);
>
> I get the following exception:
>
> java.lang.ClassCastException: java.lang.String cannot be cast to
> com.google.gwt.core.client.JavaScriptObject
>
> Now, when I debug my application and check the ClassName and so on, it
> is shown that the objects are of type JavaScriptObject ...
> If I inspect the value something like this is shown to me:
>
> net1,net2,net3
>
> Which lets me suspect, that it is indeed a String. There seems to be
> no way to cast this to String or vice versa, as String is no child of
> JavaScriptObject.
>
> My question is, why is there a Java String next to the
> JavaScriptObjects, which makes it unable for me to use it.
>
> To be honest:
> If I call toString() on the JsArray and then use the split(",") method
> I can get the result I want, but I don't believe that it is meant to
> be this way and I fear that this behavior may break some day.
>
> I'm new to GWT, so could someone enlighten me what I overlooked or did
> wrong?
> Thank you in advance.
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