Struct EventTypeRecordBuilder 

pub struct EventTypeRecordBuilder<'a> { /* private fields */ }

Builder for defining the fields of a record-shaped event type.

Obtained by calling EventTypeBuilder::define_record. Add fields with prop and finalize with as_default_event_type or for_data_source to return to the EventTypeBuilder.

Implementations

impl<'a> EventTypeRecordBuilder<'a>

pub fn prop_when(self, test: bool, name: &str, tpe: Type) -> Self

Conditionally adds a field to the event record type.

pub fn prop(self, name: &str, tpe: Type) -> Self

Adds a field with the given name and type to the event record type.

pub fn as_default_event_type(self) -> EventTypeBuilder<'a>

Finalizes the event record type and returns the SessionBuilder.

pub fn for_data_source(self, data_source: &str) -> EventTypeBuilder<'a>

Finalizes the record type and registers it for a specific named data source.

Queries targeting data_source will use this record type for type checking. Data source names are case-insensitive. Returns the EventTypeBuilder to allow chaining further type declarations.

pub fn build(self) -> (Type, TypeRef)

Creates a record type and returns it with its registered type reference.

Use the returned Type where an API expects the record type directly. Use the returned TypeRef when building another type that needs to point at this record, such as Type::Array.

The TypeRef belongs to the current SessionBuilder’s arena and should only be used with types configured through the same builder.