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RTreeCursor

graphitesql::vtab

Struct RTreeCursor 

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pub struct RTreeCursor;
Expand description

Unused cursor — a persistent module’s reads scan the backing table, not a cursor. Present only to satisfy VTabModule.

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impl VTabCursor for RTreeCursor

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type Row = RTreeRow

The row type this cursor yields.
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fn next(&mut self) -> Result<Option<RTreeRow>>

Advance to and return the next row, or Ok(None) at end-of-table.

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Blanket Implementations§

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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<C> DynCursor for C
where C: VTabCursor, <C as VTabCursor>::Row: 'static,

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fn dyn_next(&mut self) -> Result<Option<Box<dyn DynRow>>, Error>

See VTabCursor::next; yields a boxed, type-erased row.
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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
where U: Into<T>,

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type Error = Infallible

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

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.