Method isNull

src/org/apache/pig/data/Tuple.java:83–83

Find out if a given field is null. @param fieldNum Number of field to check for null. @return true if the field is null, false otherwise. @throws ExecException if the field number given is greater than or equal to the number of fields in the tuple.

(int fieldNum)

     * than or equal to the number of fields in the tuple.
     */
    boolean isNull(int fieldNum) throws ExecException;

    /**
     * Find the type of a given field.