Enum DynamoCondition 

pub enum DynamoCondition {
    Expr {
        expression: String,
        names: IndexMap<String, String>,
        values: IndexMap<String, AttributeValue>,
    },
    In {
        field: String,
        values: ValueListFn,
    },
    And(Vec<DynamoCondition>),
}

A DynamoDB filter condition.

• Expr is a fully-rendered expression with already-mangled placeholders.
• In defers resolution until a source query has run (relationship traversal).
• And combines siblings with implicit AND.

Variants

Expr

Fields

expression: String

names: IndexMap<String, String>

values: IndexMap<String, AttributeValue>

In

Fields

field: String

values: ValueListFn

And(Vec<DynamoCondition>)

Implementations

impl DynamoCondition

pub fn eq(field: impl Into<String>, value: impl Into<AttributeValue>) -> Self

Build a field = value condition.

pub fn begins_with(field: impl Into<String>, prefix: impl Into<String>) -> Self

Build a begins_with(field, prefix) condition. Used for sort-key prefix filtering in single-table designs.

Trait Implementations

impl Clone for DynamoCondition

fn clone(&self) -> DynamoCondition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DynamoCondition

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

Formats the value using the given formatter.