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Thread: How to run a "Add"-method from a method?

  1. #1
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    Default How to run a "Add"-method from a method?

    Hi all,


    I've a Java code (GWT):

    package com.practicum.client.out;
     
    import java.util.ArrayList;
    import com.google.gwt.core.client.GWT;
    import com.google.gwt.user.client.rpc.AsyncCallback;
    import com.google.gwt.user.client.ui.Widget; 
    import com.google.gwt.visualization.client.DataTable;
    import com.google.gwt.visualization.client.AbstractDataTable.ColumnType;
    import com.google.gwt.visualization.client.visualizations.corechart.AxisOptions;
    import com.google.gwt.visualization.client.visualizations.corechart.ColumnChart;
    import com.google.gwt.visualization.client.visualizations.corechart.CoreChart;
    import com.google.gwt.visualization.client.visualizations.corechart.Options;
    import com.practicum.client.Product;
    import com.practicum.client.rpc.ProductService;
    import com.practicum.client.rpc.ProductServiceAsync;
     
     
    public class DataOutColumnChart {
    	private DataTable data = DataTable.create();
    	private Options options = CoreChart.createOptions();
    	private final ProductServiceAsync productService = GWT.create(ProductService.class);
     
    	public DataOutColumnChart(Runnable runnable) {
    	}
     
    	public Widget createColumnChartView() {
    		/* create a datatable */
    		data.addColumn(ColumnType.STRING, "Price");
    		data.addColumn(ColumnType.NUMBER, "EUR");
    		addData("A for Apple", 123); // THIS WORKS
    		addData("B for Boy", 123); // THIS WORKS
     
    		/* create column chart */
    		options.setWidth(400);
    		options.setHeight(300);
    		options.setBackgroundColor("#e8e8e9");
    		AxisOptions vAxisOptions = AxisOptions.create();
    	    vAxisOptions.setMinValue(0);
    	    options.setVAxisOptions(vAxisOptions);
     
    		return new ColumnChart(data, options);
    	}
     
     
    	public void getWinkels() {
    		productService.getWinkels(new AsyncCallback<ArrayList<Product>>() {
    			public void onFailure(Throwable caught) {
    			}
     
    			public void onSuccess(ArrayList<Product> result) {
    				for (Product p : result) {
    					addData("C for Candy", 123); // THIS DONT WORK?
    					System.out.println(p.getWinkel()); // THIS WORKS
    				}
    			}
    		});
    	}
     
     
    	public void addData(String winkel, int prijs) {
    		int rownr = data.addRow();
    		data.setValue(rownr, 0, winkel);
    		data.setValue(rownr, 1, prijs);
    	}
     
    }

    Can someone explain me why line 30 and 31 works,
    but line 51 not works? Simply nothing happens on line 52...

    I've tried anything...

    Thanks in advance!


  2. #2
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    Default Re: How to run a "Add"-method from a method?

    Improving the world one idiot at a time!

  3. #3
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    Default Re: How to run a "Add"-method from a method?

    Quote Originally Posted by Junky View Post
    Java-forums.org and Javaprogrammingforums.com are two different websites....

  4. #4
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    Default Re: How to run a "Add"-method from a method?

    Quote Originally Posted by pinotje View Post
    Java-forums.org and Javaprogrammingforums.com are two different websites....
    Yes they are, which makes it that much worse. Why you might ask? See the following:
    The problems with cross-posting

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