Enum KindPredicate 

pub enum KindPredicate {
    AllExcept(Vec<MessageKind>),
    Only(Vec<MessageKind>),
}

How a request selects message classes in SQL. Two shapes rather than one because they are not equivalent over rows whose stored kind is outside the current enum: AllExcept keeps them, Only does not. See MessageFilters::kind_predicate.

Variants

AllExcept(Vec<MessageKind>)

Caller named no set: return everything except these classes.

Only(Vec<MessageKind>)

Caller named a set: return exactly these classes.

Trait Implementations

impl Clone for KindPredicate

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for KindPredicate

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

Formats the value using the given formatter.

impl Eq for KindPredicate

impl PartialEq for KindPredicate

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for KindPredicate