Struct simple_db_rust::btree::page::BTreeLeafPage

pub struct BTreeLeafPage {
    pub slot_count: usize,
    pub tuple_scheme: TupleScheme,
    // some fields omitted
}

Fields

slot_count: usize

tuple_scheme: TupleScheme

Implementations

impl BTreeLeafPage

pub fn new(
    page_id: &BTreePageID,
    bytes: Vec<u8>,
    tuple_scheme: &TupleScheme,
    key_field: usize
) -> Self

pub fn set_right_sibling_pid(&mut self, page_index: &usize)

pub fn get_right_sibling_pid(&self) -> Option<BTreePageID>

pub fn get_max_tuples(scheme: &TupleScheme) -> usize

Retrieve the maximum number of tuples this page can hold.

pub fn empty_slots_count(&self) -> usize

pub fn tuples_count(&self) -> usize

Returns the number of tuples currently stored on this page

pub fn get_header_size(slot_count: usize) -> usize

pub fn insert_tuple(&mut self, tuple: &Tuple)

Adds the specified tuple to the page such that all records remain in sorted order; the tuple should be updated to reflect that it is now stored on this page. tuple: The tuple to add.

pub fn get_tuple(&self, slot_index: usize) -> Option<Tuple>

pub fn delete_tuple(&mut self, slot_index: &usize)

pub fn is_slot_used(&self, slot_index: usize) -> bool

Returns true if associated slot on this page is filled.

pub fn mark_slot_status(&mut self, slot_index: usize, used: bool)

Methods from Deref<Target = BTreePage>

pub fn get_page_id(&self) -> BTreePageID

pub fn get_parent_pid(&self) -> BTreePageID

pub fn set_parent_id(&mut self, id: &BTreePageID)

Trait Implementations

impl Deref for BTreeLeafPage

type Target = BTreePage

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl DerefMut for BTreeLeafPage

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.