Enum Operator 

pub enum Operator {
    None,
    Constant,
    Default,
    Copy,
    Increment,
    Delta,
    Tail,
}

FAST field operator types.

Variants

None

No operator - value is always present in stream.

Constant

Constant - value is never in stream, always uses initial value.

Default

Default - if absent, use initial value.

Copy

Copy - if absent, use previous value from dictionary.

Increment

Increment - if absent, increment previous value by 1.

Delta

Delta - value in stream is delta from previous value.

Tail

Tail - value in stream replaces tail of previous value.

Implementations

impl Operator

pub const fn uses_dictionary(&self) -> bool

Returns true if this operator uses the dictionary.

pub const fn requires_pmap(&self) -> bool

Returns true if this operator requires a presence map bit.

pub const fn can_be_absent(&self) -> bool

Returns true if the value can be absent from the stream.

Trait Implementations

impl Clone for Operator

fn clone(&self) -> Operator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Operator

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

Formats the value using the given formatter.

impl Default for Operator

fn default() -> Operator

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Operator

fn deserialize<__D>( __deserializer: __D, ) -> Result<Operator, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for Operator

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

where __H: Hasher,

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 Operator

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Operator

impl Eq for Operator

impl StructuralPartialEq for Operator