app/src/main/java/db/juhaku/juhakudb/filter/PredicateBuilder.java
/**
     * Creates is null statement for given field. E.g. name IS NULL.
     *
     * @param field String field to be checked is being null or not.
     *
     * @return Predicate builder for current WHERE clause.
     *
     * @since 2.1.0
     */
Creates is null statement for given field.

@return Predicate builder for current WHERE clause.


Creates is null statement for given field . @return Predicate builder for current WHERE clause .
public PredicateBuilder isNull(String field) {
        getPredicates().add(Predicate.isNull(field));
        negateIfNecessary();
        return this;
    }
public PredicateBuilder isNull ( String field ) { getPredicates ( ) . add ( Predicate . isNull ( field ) ) ; negateIfNecessary ( ) ; return this ; }
Creates is null statement for given field.
Creates is null statement for given field .