use db_result::DbResult;
pub trait Row {
fn take(&mut self) -> Option<&[u8]>;
fn next_is_null(&self, count: usize) -> bool;
}
pub struct DbRow<'a> {
db_result: &'a DbResult,
row_idx: usize,
col_idx: usize,
}
impl<'a> DbRow<'a> {
pub fn new(db_result: &'a DbResult, row_idx: usize) -> Self {
DbRow {
db_result: db_result,
row_idx: row_idx,
col_idx: 0,
}
}
}
impl<'a> Row for DbRow<'a> {
fn take(&mut self) -> Option<&[u8]> {
let current_idx = self.col_idx;
self.col_idx += 1;
self.db_result.get(self.row_idx, current_idx)
}
fn next_is_null(&self, count: usize) -> bool {
(0..count).all(|i| {
self.db_result.is_null(self.row_idx, self.col_idx + i)
})
}
}