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IndexKind

Enum IndexKind 

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pub enum IndexKind {
    Equality,
    Ordered,
    Array,
    Text,
}
Expand description

A float as bytes that sort the way the float does. What an index can be asked, and how many keys a document gets at its path.

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Equality

One value at a time. A table from key to posting list and nothing else.

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Ordered

One value at a time, or every value between two of them. The same table with a counted B+ tree over its rows.

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Array

One element of an array at a time. A document with ["red", "blue"] at the path is filed under both, so a search for either finds it.

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Text

One word of a string at a time, folded to lower case. A document with "A red bicycle" at the path is filed under a, red and bicycle.

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impl IndexKind

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pub fn is_ordered(self) -> bool

Whether this kind can be asked for a range as well as for a value.

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pub fn is_multi(self) -> bool

Whether a document can be filed under more than one key at a time.

Trait Implementations§

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impl Clone for IndexKind

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fn clone(&self) -> IndexKind

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for IndexKind

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impl Debug for IndexKind

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

Formats the value using the given formatter. Read more
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impl Eq for IndexKind

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impl PartialEq for IndexKind

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fn eq(&self, other: &IndexKind) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for IndexKind

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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<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<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.