Access Processing Code from GWT processing wrapper

CustomProcessing.pde

DataStore data = null;

void setup()
{
   data = new DataStore();
   
}


void draw()
{
    //render code
}

class DataStore {
    String data;
    
    void setData(String data) {
         this.data = data;
    }
}


// API for access via javascript/GWT

void api_setProcessingData(String data) {
    data.setData(data);
}
void api_setSize(int width, int height) {
     size(width,height);
}

CustomProcessingInstance.java

public class MyCustomInstance extends ProcessingInstance{

	protected MyCustomInstance() {}

	public final native void setProcessingData(String value) /*-{
		this.api_setProcessingData(value);
	}-*/;

        public final native void setSize(int width, int height) /*-{
		this.api_setSize(width,height);
	}-*/;
}