Struct Document 

pub struct Document {
    pub version: (u32, u32),
    pub schema_versions: BTreeMap<String, SchemaVersion>,
    pub aliases: BTreeMap<String, String>,
    pub structs: BTreeMap<String, Vec<String>>,
    pub nests: BTreeMap<String, Vec<String>>,
    pub root: BTreeMap<String, Item>,
}

A parsed HEDL document.

Fields

version: (u32, u32)

Version (major, minor).

schema_versions: BTreeMap<String, SchemaVersion>

Schema versions for types used in this document (for schema evolution). Empty map means no schema versioning is used (legacy behavior).

aliases: BTreeMap<String, String>

Alias definitions.

structs: BTreeMap<String, Vec<String>>

Struct definitions (type -> columns).

nests: BTreeMap<String, Vec<String>>

Nest relationships (parent -> children). A parent type can have multiple child types.

root: BTreeMap<String, Item>

Root body content.

Implementations

impl Document

pub fn new(version: (u32, u32)) -> Self

Create a new empty document.

pub fn get_schema_version(&self, type_name: &str) -> Option<SchemaVersion>

Get schema version for a type.

pub fn set_schema_version(&mut self, type_name: String, version: SchemaVersion)

Set schema version for a type.

pub fn get(&self, key: &str) -> Option<&Item>

Get an item from the root by key.

pub fn get_schema(&self, type_name: &str) -> Option<&Vec<String>>

Get a struct schema by type name.

pub fn get_child_types(&self, parent_type: &str) -> Option<&Vec<String>>

Get the child types for a parent type (from NEST). A parent type can have multiple child types (e.g., Customer > Address, Customer > Order).

pub fn expand_alias(&self, key: &str) -> Option<&String>

Expand an alias key to its value.

Trait Implementations

impl Clone for Document

fn clone(&self) -> Document

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Document

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

Formats the value using the given formatter.

impl PartialEq for Document

fn eq(&self, other: &Document) -> 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 StructuralPartialEq for Document