public static Map < String , Object > onNullComparisonExpression ( Expression expression , EntityMetadata m , KunderaMetadata kunderaMetadata , KunderaQuery kunderaQuery ) { NullComparisonExpression compExp = ( NullComparisonExpression ) expression ; String condition = compExp . getIdentifier ( ) ; Expression sfpExp = compExp . getExpression ( ) ; Map < String , Object > map = KunderaQueryUtils . setFieldClazzAndColumnFamily ( sfpExp , m , kunderaMetadata ) ; kunderaQuery . addFilterClause ( ( String ) map . get ( Constants . COL_NAME ) , condition , null , ( String ) map . get ( Constants . FIELD_NAME ) , ( Boolean ) map . get ( Constants . IGNORE_CASE ) ) ; return map ; }
On null - comparison expression .