Enum ComparisonOperator 

pub enum ComparisonOperator {
    Eq,
    Ne,
    Le,
    Lt,
    Ge,
    Gt,
    NotNull,
    Null,
    Contains,
    NotContains,
    BeginsWith,
    In,
    Between,
}

Comparison operator for legacy Condition filters.

These are used with the legacy ScanFilter, QueryFilter, KeyConditions, and Expected parameters. Modern applications should use expression-based APIs (FilterExpression, KeyConditionExpression, ConditionExpression).

Variants

Eq

Equal to.

Ne

Not equal to.

Le

Less than or equal to.

Lt

Less than.

Ge

Greater than or equal to.

Gt

Greater than.

NotNull

Attribute does not exist.

Null

Attribute exists (with any value, including null).

Contains

Attribute value contains the specified substring or set member.

NotContains

Attribute value does not contain the specified substring or set member.

BeginsWith

Attribute value begins with the specified substring.

In

Attribute value is a member of the specified list.

Between

Attribute value is between two values (inclusive).

Implementations

impl ComparisonOperator

pub fn as_str(&self) -> &'static str

Returns the DynamoDB wire-format string representation.

Trait Implementations

impl Clone for ComparisonOperator

fn clone(&self) -> ComparisonOperator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ComparisonOperator

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ComparisonOperator

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ComparisonOperator

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

Formats the value using the given formatter.

impl Hash for ComparisonOperator

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ComparisonOperator

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for ComparisonOperator

impl StructuralPartialEq for ComparisonOperator