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BtreePage

quantydb_sqlite

Struct BtreePage 

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pub struct BtreePage {
    pub number: u32,
    pub kind: PageKind,
    pub right_most: Option<u32>,
    /* private fields */
}
Expand description

One b-tree page, with its header parsed and its cell pointers validated.

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§number: u32§kind: PageKind§right_most: Option<u32>

Child page holding keys greater than every key on this page. Interior pages only.

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impl BtreePage

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pub fn cell_count(&self) -> usize

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pub fn cell(&self, index: usize) -> Result<&[u8]>

The bytes of cell index, from where it starts to the end of the usable area. Cells are variable length and their real end is only known once the payload header has been read, so this is the widest slice a cell may occupy, not its exact extent.

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.