Enum Filter 

pub enum Filter {
    MatchAll,
    Exists(FieldPath),
    Compare {
        path: FieldPath,
        operator: CompareOperator,
        value: Value,
    },
    Prefix {
        path: FieldPath,
        prefix: Value,
    },
    Contains {
        path: FieldPath,
        needle: Value,
    },
    All(Vec<Self>),
    Any(Vec<Self>),
    Not(Box<Self>),
}

Deterministic filter expression.

Variants

MatchAll

Matches every record.

Exists(FieldPath)

Tests whether a path resolves, including to explicit null.

Compare

Compares one resolved value against a literal.

Fields

path: FieldPath

Field path.

operator: CompareOperator

Comparison operator.

value: Value

Literal right-hand value.

Prefix

Tests a UTF-8 or binary prefix of the same type.

Fields

path: FieldPath

Field path.

prefix: Value

String or bytes prefix.

Contains

Tests array membership, UTF-8 substring, or byte subsequence.

Fields

path: FieldPath

Field path.

needle: Value

Exact element or same-type needle.

All(Vec<Self>)

Every child must match; an empty list is true.

Any(Vec<Self>)

At least one child must match; an empty list is false.

Not(Box<Self>)

Ordinary two-valued negation.

Trait Implementations

impl Clone for Filter

fn clone(&self) -> Filter

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Filter

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

Formats the value using the given formatter.

impl Eq for Filter

impl PartialEq for Filter

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Filter