Struct vinyl::query::Query

pub struct Query {
    pub qc: QueryComponent,
}

Query is the basic component of all queries. Every query expression outputs a Query. Query is not used directly except for in the case of Query::not

Fields

qc: QueryComponent

the underlyingproto QueryComponent

Methods

impl Query

pub fn and(self, other: Query) -> Query

Check that a set of components all evaluate to true for a given record.

use vinyl_core::query::field;

field("price")
    .equals(4.3)
    .and(field("type").equals("rose"));

pub fn or(self, other: Query) -> Query

Check that any of a set of components evaluate to true for a given record

pub fn not(other: Query) -> Query

Negate a component test

use vinyl_core::query::{field, Query};

let query = Query::not(
    field("price").equals(4.3),
);

Trait Implementations

impl PartialEq<Query> for Query

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

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

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

This method tests for !=.

impl BitAnd<Query> for Query

type Output = Query

The resulting type after applying the & operator.

fn bitand(self, other: Query) -> Query

Performs the & operation.

impl Debug for Query

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

Formats the value using the given formatter.