Enum Filter 

pub enum Filter {
    And(Vec<Filter>),
    Or(Vec<Filter>),
    Not(Box<Filter>),
    Eq {
        field: String,
        value: Value,
    },
    Ne {
        field: String,
        value: Value,
    },
    In {
        field: String,
        values: Vec<Value>,
    },
    Lt {
        field: String,
        value: Value,
    },
    Lte {
        field: String,
        value: Value,
    },
    Gt {
        field: String,
        value: Value,
    },
    Gte {
        field: String,
        value: Value,
    },
    Exists {
        field: String,
    },
}

A predicate over a point’s JSON payload.

Variants

And(Vec<Filter>)

All sub-filters must match.

Or(Vec<Filter>)

At least one sub-filter must match.

Not(Box<Filter>)

The sub-filter must not match.

Eq

Field equals value (numbers compared numerically across int/float).

Fields

field: String

Dot-path to the field.

value: Value

Value to compare against.

Ne

Field is absent or not equal to value.

Fields

field: String

Dot-path to the field.

value: Value

Value to compare against.

In

Field equals one of the values.

Fields

field: String

Dot-path to the field.

values: Vec<Value>

Allowed values.

Lt

Field is strictly less than value (numbers or strings).

Fields

field: String

Dot-path to the field.

value: Value

Value to compare against.

Lte

Field is less than or equal to value.

Fields

field: String

Dot-path to the field.

value: Value

Value to compare against.

Gt

Field is strictly greater than value.

Fields

field: String

Dot-path to the field.

value: Value

Value to compare against.

Gte

Field is greater than or equal to value.

Fields

field: String

Dot-path to the field.

value: Value

Value to compare against.

Exists

Field is present (any value, including null).

Fields

field: String

Dot-path to the field.

Implementations

impl Filter

pub fn matches(&self, payload: &Value) -> bool

Evaluate the predicate against a payload. A missing field makes value-comparisons (Eq/In/Lt/…) false; Ne is true for a missing field; Exists reports presence.

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<(), Error>

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Filter

fn deserialize<__D>( __deserializer: __D, ) -> Result<Filter, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Filter

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Filter

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Filter