[Last Call] Learn how to a build a cloud-first strategyRegister Now

x
?
Solved

YUI DataTable with Data Source as a Java Servlet generating XML

Posted on 2007-03-19
8
Medium Priority
?
3,685 Views
Last Modified: 2008-01-09
I am working to implement the YUI DataTable (http://developer.yahoo.com/yui/datatable/) with my data source as a Java servlet that creates XML output.

What I know:
outputter.outputString(jDOMDoc); will output the XML structured as:
<ResultSet><Result><ROUNDS>3</ROUNDS> .....  </Result></ResultSet>
I get the Javascript error 'no element found' http://url/LeagueStandings?get=all&ouput=xml
The table appears with the column headers, but the data does not appear.
No Exceptions are being thrown.

The Servlet Code:
           RStoXML rsxml = new RStoXML(results, "ResultSet", "Result");
           //create the XML from recordset
            Document jDOMDoc = rsxml.build();            
            results.close();
            XMLOutputter outputter = new XMLOutputter() ;
            StringWriter writer = new StringWriter() ;
            outputter.output( jDOMDoc, writer );
            writer.close() ;
            //respond with output stream
            rep.setContentType("text/xml");
            rep.getOutputStream();

Javscript:

var myColumnHeaders = [
    {key:"ROUNDS",text:"ROUNDS"},
    {key:"USERNAME",text:"USER"},
    {key:"BIRDIES",text:"BIRDIES"},
    {key:"PARS",text:"PARS"},
    {key:"BOGIES",text:"BOGIES"},
    {key:"DOUBLES",text:"DOUBLES"},
    {key:"GH",text:"GH"},
    {key:"FH",text:"FH"},
    {key:"PUTTS",text:"PUTTS"},
    {key:"SCORES",text:"SCORES"},
];
var myColumnSet = new YAHOO.widget.ColumnSet(myColumnHeaders);

// Show over 1000 records
var myDataSource = new YAHOO.util.DataSource("http://url/LeagueStandings");

// Set the responseType as XML
myDataSource.responseType = YAHOO.util.DataSource.TYPE_XML;

// Define the data schema
myDataSource.responseSchema = {
    resultNode: "ResultSet.Result", // Node name of each result item
    fields: ["ROUNDS","USER","BIRDIES","PARS","BOGIES","DOUBLES","GH","FH","PUTTS","SCORES"] // Field names
};
//Pagination
var initialRequest = "get=all&output=xml";
var oConfigs = {
        caption:"Example: Paginated Over XHR",
        initialRequest:initialRequest,

        pageCurrent: 1,
        rowsPerPage: 100,
        startRecordIndex: 1,
        pageLinksLength: 10,
        rowsPerPageDropdown: [25,50,100,500]
};
var myDataTable = new YAHOO.widget.DataTable("paginated", myColumnSet, myDataSource, oConfigs);

0
Comment
Question by:fortneci
7 Comments
 
LVL 15

Expert Comment

by:stanscott2
ID: 18752088
I'm not sure this goes the whole nine yards, but it appears that you have an error in the fields array.  You're showing "USER", when the name of the key is "USERNAME"
0
 

Author Comment

by:fortneci
ID: 18752452
I changed it all to USERNAME to clear up any discrepancy, but the result is the same. I still get the 'no element found' http://url/LeagueStandings?get=alll&output=xml JAVASCRIPT ERROR. My thought is that I am getting the error because my XML data source  isn't being read. I validated in the Servlet that the jDOMDoc is creating XML, but I haven't been able to validate that it is being returned in the response of the servlet, any suggestions on how to do that?
0
 
LVL 30

Expert Comment

by:Mayank S
ID: 18756867
Can you post the XML?
0
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 

Author Comment

by:fortneci
ID: 18769224
<?xml version="1.0" encoding="UTF-8"?>
<ResultSet>
    <Result>
         <ROUNDS>3</ROUNDS>
         <USERNAME>testuser</USERNAME>
         <BIRDIES>2</BIRDIES>
         <PARS>13</PARS>
         <BOGIES>28</BOGIES>
         <DOUBLES>11</DOUBLES>
         <GH>10</GH>
        <FH>10</FH>
        <PUTTS>108</PUTTS>
        <SCORES>264</SCORES>
    </Result>
</ResultSet>
0
 

Author Comment

by:fortneci
ID: 18782809
If i just try to hit the servlet, I am getting the following error.

XML Parsing Error: no element found
Location: http://url/LeagueStandings
Line Number 1, Column 1:
0
 

Author Comment

by:fortneci
ID: 18783699
Found the problem and got this resolved. I am posting the updated code for the knowledge base.

XML:
<?xml version="1.0" encoding="UTF-8"?>
<ResultSet>
    <Result>
         <ROUNDS>3</ROUNDS>
         <USERNAME>testuser</USERNAME>
         <BIRDIES>2</BIRDIES>
         <PARS>13</PARS>
         <BOGIES>28</BOGIES>
         <DOUBLES>11</DOUBLES>
         <GH>10</GH>
        <FH>10</FH>
        <PUTTS>108</PUTTS>
        <SCORES>264</SCORES>
    </Result>
</ResultSet>

Servlet Code:
Error was due to not writing it to the response.
            RStoXML rsxml = new RStoXML(results, "ResultSet", "Result");
            //create the XML from recordset
            Document jDOMDoc = rsxml.build();            
            results.close();
            XMLOutputter outputter = new XMLOutputter() ;
            StringWriter writer = new StringWriter() ;
            outputter.output( jDOMDoc, writer );
            writer.close() ;
            //respond with output stream
            rep.setContentType("text/xml");
            rep.getWriter().println(writer.toString());


YUI Javascript:
The error was with resultNode

var myColumnHeaders = [
    {key:"ROUNDS",text:"ROUNDS"},
    {key:"USERNAME",text:"USERNAME"},
    {key:"BIRDIES",text:"BIRDIES"},
    {key:"PARS",text:"PARS"},
    {key:"BOGIES",text:"BOGIES"},
    {key:"DOUBLES",text:"DOUBLES"},
    {key:"GH",text:"GH"},
    {key:"FH",text:"FH"},
    {key:"PUTTS",text:"PUTTS"},
    {key:"SCORES",text:"SCORES"},
];
var myColumnSet = new YAHOO.widget.ColumnSet(myColumnHeaders);

// Show over 1000 records
var myDataSource = new YAHOO.util.DataSource("/golferswired/LeagueStandings");
// Show 5000 records -- FireBug must be disabled!
//var myDataSource = new YAHOO.util.DataSource("./php/data5000_proxy.php");

// Set the responseType as XML
myDataSource.responseType = YAHOO.util.DataSource.TYPE_XML;

// Define the data schema
myDataSource.responseSchema = {
    resultNode: "Result", // Node name of each result item
    fields: ["ROUNDS","USERNAME","BIRDIES","PARS","BOGIES","DOUBLES","GH","FH","PUTTS","SCORES"] // Field names
};

var initialRequest = "get=all&output=xml";
var oConfigs = {
        caption:"Example: Paginated Over XHR",
        initialRequest:initialRequest,

        pageCurrent: 1,
        rowsPerPage: 100,
        startRecordIndex: 1,
        pageLinksLength: 10,
        rowsPerPageDropdown: [25,50,100,500]
};
var myDataTable = new YAHOO.widget.DataTable("paginated", myColumnSet, myDataSource, oConfigs);
0
 
LVL 1

Accepted Solution

by:
Computer101 earned 0 total points
ID: 19538615
PAQed with points refunded (500)

Computer101
EE Admin
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this post we will learn how to make Android Gesture Tutorial and give different functionality whenever a user Touch or Scroll android screen.
In this blog, we’ll look at how improvements to Percona XtraDB Cluster improved IST performance.
This tutorial explains how to use the VisualVM tool for the Java platform application. This video goes into detail on the Threads, Sampler, and Profiler tabs.
How to fix incompatible JVM issue while installing Eclipse While installing Eclipse in windows, got one error like above and unable to proceed with the installation. This video describes how to successfully install Eclipse. How to solve incompa…
Suggested Courses
Course of the Month18 days, 1 hour left to enroll

831 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question