public boolean anyNull ( ) { // Skip the header. if ( ( segments [ 0 ] . getLong ( 0 ) & FIRST_BYTE_ZERO ) != 0 ) { return true ; } for ( int i = 8 ; i < nullBitsSizeInBytes ; i += 8 ) { if ( segments [ 0 ] . getLong ( i ) != 0 ) { return true ; } } return false ; }
The bit is 1 when the field is null . Default is 0 .