Trait BTreePage

Source

pub trait BTreePage {
    // Required methods
    fn new(
        pid: &BTreePageID,
        bytes: &[u8],
        tuple_scheme: &Schema,
        key_field: usize,
    ) -> Self
       where Self: Sized;
    fn get_pid(&self) -> BTreePageID;
    fn get_parent_pid(&self) -> BTreePageID;
    fn set_parent_pid(&mut self, pid: &BTreePageID);
    fn get_page_data(&self) -> Vec<u8> ⓘ;
    fn set_before_image(&mut self);
    fn get_before_image(&self) -> Vec<u8> ⓘ;
    fn peek(&self);
}

Required Methods§

Source

fn new( pid: &BTreePageID, bytes: &[u8], tuple_scheme: &Schema, key_field: usize, ) -> Self
where Self: Sized,

Source

fn get_page_data(&self) -> Vec<u8> ⓘ

Generates a byte array representing the contents of this page. Used to serialize this page to disk.

The invariant here is that it should be possible to pass the byte array generated by get_page_data to the BTreePage constructor and have it produce an identical BTreeLeafPage object.