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How to get the names of the columns created by a query

raravind

Currently I am generating an rpt design file using DEAPI where i hard code teh names of teh columns

(EmployeeNumber,firstname,lastname,jobtitle and email)

But I want to get the column names dynamically after the query is created.(from the query given here )

"select EmployeeNumber,firstname,lastname,jobtitle ,email from EmployeeDetails"

As soon as the query is created i want to get the names of the colums using Apis.What and How shud i do

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Comments

mwilliams

Hi raravind, 
 
The following code can be used in your dataSet script to access the column names. This code adds all the names and types to a string that you can output to your report. You should be able to modify this script to assign each column name to a different variable as well if you want them separately for your column headers. 
 
<pre class='_prettyXprint _lang-auto _linenums:0'>
crs = reportContext.getReportRunnable().getDesignInstance().getDataSet("Data Set").getCachedResultSetColumns();

iii = crs.size()

rsp = crs.iterator();

str = "";

while( rsp.hasNext() ){

cc = rsp.next();

str = str + cc.getName() +"--"+ cc.getColumnDataType() + " n";

}

</pre>
 
Hope this helps.

raravind

i deeply express my regards for the help rendered by u sir!

I wud be very happy to get ur help for one more query of mine

This is teh code u gave (with interfaces and class references)

/*IReportContext reportContext = null;
List crs = reportContext.getReportRunnable().getDesignInstance().getDataSet("Sample Derby Data Set").getCachedResultSetColumns();

int iii = crs.size();

Iterator rsp = crs.iterator();

String str = "";

while( rsp.hasNext() )
{

IResultSetColumn cc = (IResultSetColumn) rsp.next();

str = str + cc.getName() +"--"+ cc.getColumnDataType() + " n";

System.out.println("The columns are"+str);
}*/

over here how do i get this IReportContext reference(which i refenced to null in first line) from so that it can be used for my rptdesign file directly?

I am a novice programmer and finding it difficult to lick this with my design file.
pls do help me out ......... as soon as possible