Enum FilterExpr 

pub enum FilterExpr {
    Eq(u16, FilterValue),
    Ne(u16, FilterValue),
    Lt(u16, FilterValue),
    Le(u16, FilterValue),
    Gt(u16, FilterValue),
    Ge(u16, FilterValue),
    In(u16, Vec<FilterValue>),
    Range(u16, FilterValue, FilterValue),
    And(Vec<FilterExpr>),
    Or(Vec<FilterExpr>),
    Not(Box<FilterExpr>),
}

A filter expression for metadata-based vector filtering.

Leaf nodes compare a metadata field against a literal value. Internal nodes combine sub-expressions with boolean logic.

Variants

Eq(u16, FilterValue)

field == value

Ne(u16, FilterValue)

field != value

Lt(u16, FilterValue)

field < value

Le(u16, FilterValue)

field <= value

Gt(u16, FilterValue)

field > value

Ge(u16, FilterValue)

field >= value

In(u16, Vec<FilterValue>)

field in [values]

Range(u16, FilterValue, FilterValue)

field in [low, high)

And(Vec<FilterExpr>)

All sub-expressions must match.

Or(Vec<FilterExpr>)

Any sub-expression must match.

Not(Box<FilterExpr>)

Negate the sub-expression.

Trait Implementations

impl Clone for FilterExpr

fn clone(&self) -> FilterExpr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FilterExpr

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

Formats the value using the given formatter.