Enum Predicate 

pub enum Predicate {
    Compare {
        field: FieldPath,
        op: CompareOp,
        value: PredicateValue,
    },
    And(Vec<Predicate>),
    Or(Vec<Predicate>),
    Not(Box<Predicate>),
    Exists {
        field: FieldPath,
    },
}

Predicate for filtering entities

Variants

Compare

Field comparison: field op value

Fields

field: FieldPath

op: CompareOp

value: PredicateValue

And(Vec<Predicate>)

Logical AND of predicates

Or(Vec<Predicate>)

Logical OR of predicates

Not(Box<Predicate>)

Negation

Exists

Field exists (is not null)

Fields

field: FieldPath

Trait Implementations

impl Clone for Predicate

fn clone(&self) -> Predicate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Predicate

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Predicate

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Predicate

fn eq(&self, other: &Predicate) -> 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 Predicate

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Predicate