question: moves to the next record . returns false if there is no next record . concode_field_sep String filename concode_elem_sep Transaction tx concode_elem_sep TableInfo ti concode_elem_sep int currentblknum concode_elem_sep RecordPage rp concode_field_sep boolean atLastBlock concode_elem_sep RID currentRid concode_elem_sep void appendBlock concode_elem_sep void beforeFirst concode_elem_sep void insert concode_elem_sep String getString concode_elem_sep void delete concode_elem_sep void setInt concode_elem_sep void moveToRid concode_elem_sep int getInt concode_elem_sep void setString concode_elem_sep void close concode_elem_sep void moveTo
target: boolean function ( ) { while ( true ) { if ( rp . next ( ) ) return true ; if ( atLastBlock ( ) ) return false ; moveTo ( currentblknum + 1 ) ; } }