Trait ViewDefinitionTrait

Source

pub trait ViewDefinitionTrait {
    type Select: ViewDefinitionSelectTrait;
    type Where: ViewDefinitionWhereTrait;
    type Constant: ViewDefinitionConstantTrait;

    // Required methods
    fn resource(&self) -> Option<&str>;
    fn select(&self) -> Option<&[Self::Select]>;
    fn where_clauses(&self) -> Option<&[Self::Where]>;
    fn constants(&self) -> Option<&[Self::Constant]>;
}

Expand description

Trait for abstracting ViewDefinition across FHIR versions.

This trait provides version-agnostic access to ViewDefinition components, enabling the core processing logic to work uniformly across R4, R4B, R5, and R6 specifications. Each FHIR version implements this trait to expose its ViewDefinition structure through a common interface.

§Associated Types

Select: The select statement type for this FHIR version
Where: The where clause type for this FHIR version
Constant: The constant definition type for this FHIR version

§Examples

use helios_sof::traits::ViewDefinitionTrait;

fn process_any_version<T: ViewDefinitionTrait>(vd: &T) {
    if let Some(resource_type) = vd.resource() {
        println!("Processing {} resources", resource_type);
    }
     
    if let Some(selects) = vd.select() {
        println!("Found {} select statements", selects.len());
    }
}