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SearchParameterLoader

helios_persistence::search::loader

Struct SearchParameterLoader 

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pub struct SearchParameterLoader { /* private fields */ }
Expand description

Loader for SearchParameter definitions.

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impl SearchParameterLoader

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pub fn new(fhir_version: FhirVersion) -> Self

Creates a new loader for the specified FHIR version.

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pub fn version(&self) -> FhirVersion

Returns the FHIR version.

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pub fn spec_filename(&self) -> &'static str

Returns the spec filename for the configured FHIR version.

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pub fn load_embedded( &self, ) -> Result<Vec<SearchParameterDefinition>, LoaderError>

Loads embedded minimal fallback parameters for the FHIR version.

This returns only the essential Resource-level search parameters that should always be available as a fallback. For full FHIR spec compliance, use load_from_spec_file() to load the complete parameter set.

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pub fn load_from_spec_file( &self, data_dir: &Path, ) -> Result<Vec<SearchParameterDefinition>, LoaderError>

Loads SearchParameter resources from a FHIR spec bundle file.

Expects files in the format search-parameters-{version}.json in the specified data directory, where version is r4, r4b, r5, or r6.

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pub fn load_custom_from_directory( &self, data_dir: &Path, ) -> Result<Vec<SearchParameterDefinition>, LoaderError>

Loads custom SearchParameter files from the data directory.

Scans the data directory for JSON files that are not the standard FHIR spec bundles (search-parameters-*.json). These files can contain:

  • A single SearchParameter resource
  • An array of SearchParameter resources
  • A Bundle containing SearchParameter resources

This allows organizations to add custom SearchParameters by placing JSON files in the data directory.

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pub fn load_custom_from_directory_with_files( &self, data_dir: &Path, ) -> Result<(Vec<SearchParameterDefinition>, Vec<String>), LoaderError>

Loads custom SearchParameter files from the data directory.

Returns both the loaded parameters and the list of filenames that were loaded.

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pub fn load_from_json( &self, json: &Value, ) -> Result<Vec<SearchParameterDefinition>, LoaderError>

Loads SearchParameter resources from a JSON bundle or array.

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pub fn load_config( &self, config_path: &Path, ) -> Result<Vec<SearchParameterDefinition>, LoaderError>

Loads parameters from a configuration file.

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pub fn parse_resource( &self, resource: &Value, ) -> Result<SearchParameterDefinition, LoaderError>

Parses a SearchParameter FHIR resource into a definition.

Trait Implementations§

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impl Default for SearchParameterLoader

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fn default() -> Self

Returns the “default value” for a type. Read more

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