JSON Needs a Data Object

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o Since we are using JSNI, it nees an object representation of data
o In our case, the message data. We need to create the message data object
o We create MessageData java code in the com.sample.client package
o Here is the code:

public class MessageData extends JavaScriptObject {
	protected MessageData() {
	};

	// JSNI methods to get stock data.
	public final native String getMessage()
	/*-{
		return this.message;
	}-*/;
}

o We need a protected constructor:
protected MessageData()
o We need to pass the data back as JSNI, hence we create this method:

	public final native String getMessage()
	/*-{
		return this.message;
	}-*/;

o /*-{return this.message;}-*/;
o This is the javascript object representation of our data, it is as if
we had an object:

class MessageData {
	String message;
	public String getMessage() {
	}
}

o But, since we are extending the JavaScriptObject, we get for free:
String message;
public String getMessage() {
}
o /*-{return this.message;}-*/; replaces the latter