Struct google_datastore1_beta3::api::Query

pub struct Query {
    pub distinct_on: Option<Vec<PropertyReference>>,
    pub end_cursor: Option<Vec<u8>>,
    pub filter: Option<Filter>,
    pub kind: Option<Vec<KindExpression>>,
    pub limit: Option<i32>,
    pub offset: Option<i32>,
    pub order: Option<Vec<PropertyOrder>>,
    pub projection: Option<Vec<Projection>>,
    pub start_cursor: Option<Vec<u8>>,
}

A query for entities.

This type is not used in any activity, and only used as part of another schema.

Fields

distinct_on: Option<Vec<PropertyReference>>

The properties to make distinct. The query results will contain the first result for each distinct combination of values for the given properties (if empty, all results are returned). Requires: * If order is specified, the set of distinct on properties must appear before the non-distinct on properties in order.

end_cursor: Option<Vec<u8>>

An ending point for the query results. Query cursors are returned in query result batches and can only be used to limit the same query.

filter: Option<Filter>

The filter to apply.

kind: Option<Vec<KindExpression>>

The kinds to query (if empty, returns entities of all kinds). Currently at most 1 kind may be specified.

limit: Option<i32>

The maximum number of results to return. Applies after all other constraints. Optional. Unspecified is interpreted as no limit. Must be >= 0 if specified.

offset: Option<i32>

The number of results to skip. Applies before limit, but after all other constraints. Optional. Must be >= 0 if specified.

order: Option<Vec<PropertyOrder>>

The order to apply to the query results (if empty, order is unspecified).

projection: Option<Vec<Projection>>

The projection to return. Defaults to returning all properties.

start_cursor: Option<Vec<u8>>

A starting point for the query results. Query cursors are returned in query result batches and can only be used to continue the same query.

Trait Implementations

impl Clone for Query

fn clone(&self) -> Query

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Query

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

Formats the value using the given formatter.

impl Default for Query

fn default() -> Query

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Query

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Query

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Part for Query