Enum cassandra_protocol::query::query_values::QueryValues

pub enum QueryValues {
    SimpleValues(Vec<Value>),
    NamedValues(HashMap<String, Value>),
}

Enum that represents two types of query values:

• values without name
• values with names

Variants

SimpleValues(Vec<Value>)

NamedValues(HashMap<String, Value>)

Implementations

impl QueryValues

pub fn has_names(&self) -> bool

Returns true if query values is with names and false otherwise.

pub fn len(&self) -> usize

Returns the number of values.

pub fn is_empty(&self) -> bool

Trait Implementations

impl Clone for QueryValues

fn clone(&self) -> QueryValues

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for QueryValues

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

Formats the value using the given formatter.

impl<T: Into<Value> + Clone> From<&[T]> for QueryValues

fn from(values: &[T]) -> QueryValues

Converts values from Vec to query values without names QueryValues::SimpleValues.

impl<S: ToString, V: Into<Value>> From<HashMap<S, V, RandomState>> for QueryValues

fn from(values: HashMap<S, V>) -> QueryValues

Converts values from HashMap to query values with names QueryValues::NamedValues.

impl<T: Into<Value>> From<Vec<T, Global>> for QueryValues

fn from(values: Vec<T>) -> QueryValues

Converts values from Vec to query values without names QueryValues::SimpleValues.

impl PartialEq<QueryValues> for QueryValues

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for QueryValues

fn serialize(&self, cursor: &mut Cursor<&mut Vec<u8>>, version: Version)

Serializes given value using the cursor.

fn serialize_to_vec(&self, version: Version) -> Vec<u8>

Wrapper for easily starting hierarchical serialization.

impl Eq for QueryValues

impl StructuralEq for QueryValues

impl StructuralPartialEq for QueryValues