Enum DataSourceKind 

#[non_exhaustive]
pub enum DataSourceKind {
    Json {
        data: Value,
    },
    Url {
        url: String,
        headers: BTreeMap<String, String>,
    },
    Sql {
        connection: String,
        query: String,
    },
}

How a data source obtains its data.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Json

Data stored in the layout itself (samples, small lookup tables).

Fields

data: Value

The data.

Url

JSON fetched over HTTP(S) when the report runs.

Fields

url: String

The address; {?Name} inserts a parameter value.

headers: BTreeMap<String, String>

Extra request headers. Secrets belong in the server’s configuration, not here.

Sql

A SQL query run by the report server against a named connection.

Fields

connection: String

A connection name from the server’s configuration (never a connection string with a password).

query: String

The query; @Name binds a report parameter.

Trait Implementations

impl Clone for DataSourceKind

fn clone(&self) -> DataSourceKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DataSourceKind

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

Formats the value using the given formatter.

impl Default for DataSourceKind

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for DataSourceKind

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for DataSourceKind

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for DataSourceKind

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for DataSourceKind