Struct TreeLocation 

pub struct TreeLocation {
    pub index: i32,
    pub ln_key: Option<Vec<u8>>,
    pub child_lsn: Lsn,
    pub child_logged_size: i32,
    pub is_kd: bool,
    pub is_embedded: bool,
}

Cursor-like object tracking a location in a tree.

Used during recovery to track the position being processed and maintain context about the current entry’s attributes.

Fields

index: i32

Index within the current BIN.

ln_key: Option<Vec<u8>>

The key at this location (if known).

child_lsn: Lsn

LSN of the child at this location.

child_logged_size: i32

Logged size of the child entry.

is_kd: bool

True if this entry is known deleted.

is_embedded: bool

True if this is an embedded LN.

Implementations

impl TreeLocation

pub fn new() -> Self

Creates a new TreeLocation with default values.

pub fn with_index_and_key(index: i32, ln_key: Vec<u8>) -> Self

Creates a TreeLocation with specific index and key.

Arguments

• index - The slot index in the BIN
• ln_key - The key at this location

pub fn reset(&mut self)

Resets all fields to their default values.

This allows reusing a TreeLocation instance.

pub fn has_valid_index(&self) -> bool

Returns true if this location has a valid index.

pub fn has_key(&self) -> bool

Returns true if a key is present at this location.

pub fn key_as_slice(&self) -> Option<&[u8]>

Returns the key as a slice, if present.

pub fn set_key(&mut self, key: Vec<u8>)

Sets the key at this location.

pub fn clear_key(&mut self)

Clears the key at this location.

Trait Implementations

impl Clone for TreeLocation

fn clone(&self) -> TreeLocation

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TreeLocation

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TreeLocation

fn default() -> Self

Returns the “default value” for a type.