Enum MediaHandler 

pub enum MediaHandler {
    BuiltinAggSingleJson(bool),
    BuiltinAggArrayJsonStrip,
    BuiltinOvAggJson,
    BuiltinOvAggCsv,
    BuiltinOvAggGeoJson,
    CustomFunc(QualifiedIdentifier, RelIdentifier),
    NoAgg,
}

Handler for aggregating/formatting database results into a specific media type

Matches the Haskell MediaHandler data type.

Variants

BuiltinAggSingleJson(bool)

Built-in: aggregate into a single JSON object. The bool indicates whether to strip the array wrapper.

BuiltinAggArrayJsonStrip

Built-in: aggregate into a JSON array with stripping

BuiltinOvAggJson

Built-in overridable: JSON aggregation

BuiltinOvAggCsv

Built-in overridable: CSV aggregation

BuiltinOvAggGeoJson

Built-in overridable: GeoJSON aggregation

CustomFunc(QualifiedIdentifier, RelIdentifier)

Custom aggregate function

NoAgg

No aggregation needed

Implementations

impl MediaHandler

pub fn is_builtin(&self) -> bool

Check if this is a built-in handler

pub fn is_custom(&self) -> bool

Check if this is a custom function handler

Trait Implementations

impl Clone for MediaHandler

fn clone(&self) -> MediaHandler

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MediaHandler

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

Formats the value using the given formatter.

impl PartialEq for MediaHandler

fn eq(&self, other: &MediaHandler) -> 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 Eq for MediaHandler

impl StructuralPartialEq for MediaHandler