Error then copy all lines in an ArrayList... help please

Hi all

IAM doing a little POC on the module of editing as webservices... Application iam stuck when copying the whereclause results in an arraylist... someone please help... below is the code

public class matrixVOImpl extends ViewObjectImpl {
    /**This is the default constructor (do not remove)
     */
    ArrayList al=new ArrayList();
    public matrixVOImpl() {
    }
public  ArrayList getCompLevels(String role){
    int x=0;
    int pos=0;
    setWhereClause("matrixEO.ROLE='"+role+"'");
    executeQuery();
    if (!hasNext())
    {
            throw new JboException("unable to find role " +role);
    }
    long i=getEstimatedRowCount();
    
    for(x=0;x<=i-1;x++){
    Row rw=getRowAtRangeIndex(x);************ //here lies the problem for me********************
   

String comp= rw.getAttribute("Competency").toString();
    String lr=rw.getAttribute("LevelRequired").toString();
   
   al.add(0,comp);
  pos=pos+1;
   al.add(1,lr);
  pos=pos+1;
    }
    return al;
    

}

}





problem is at  Row rw=getRowAtRangeIndex(x); for loop is not workin here...when i manually put zero,first(),last() in place of x works fine i get the first row ..but if i put 1,2...10 or any number i get a null pointer exception..

how to get all the rows ...wch can b copied to an arraylist...can someone help pllzz.

Published by: Oraclerr on April 10, 2009 12:31

To iterate over a set of rows that you usually use

while(hasNext())
{
  Row row = next();
  // Copy your attributes
}

Timo

Tags: Java

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