Problem in UDF

Hi experts,

Iam using an UDF to check whether values for any of the fields in any of the records are missing. If so i have to skip perticular record. UDF is allowing the records which are without any missing values. But whenever a field with a missing comes its raising exception.

The code Iam using in UDF is

//write your code here

boolean flag = false;

for(int i=0;i<a.length;i++)

{

String temp[] = a<i>.split(" ");

for(int cnt=0;cnt<temp.length;cnt++)

{

if(!(temp[cnt].equals( null )))

{

flag = true;

}else

flag = false;

if(flag = true)

result.addValue(a<i>);

} }

If the flag is false I want it to skip that record and continue with next one.

Thanks&Regards,

Reyaz.