Struct MetadataContext 

pub struct MetadataContext { /* private fields */ }

Metadata context

Stores pre-resolved metadata during the planning phase, similar to PostgreSQL’s fdw_private.

Implementations

impl MetadataContext

pub fn new() -> Self

Create a new empty metadata context

pub fn set_index_metadata( &mut self, index_name: String, metadata: IndexMetadata, )

Set index metadata

pub fn set_tag_metadata(&mut self, tag_name: String, metadata: TagMetadata)

Set tag metadata

pub fn set_edge_type_metadata( &mut self, edge_type: String, metadata: EdgeTypeMetadata, )

Set edge type metadata

pub fn get_index_metadata(&self, index_name: &str) -> Option<&IndexMetadata>

Get index metadata

pub fn get_tag_metadata(&self, tag_name: &str) -> Option<&TagMetadata>

Get tag metadata

pub fn get_tag_metadata_mut( &mut self, tag_name: &str, ) -> Option<&mut TagMetadata>

Get tag metadata (mutable)

pub fn get_edge_type_metadata( &self, edge_type: &str, ) -> Option<&EdgeTypeMetadata>

Get edge type metadata

pub fn get_edge_type_metadata_mut( &mut self, edge_type: &str, ) -> Option<&mut EdgeTypeMetadata>

Get edge type metadata (mutable)

pub fn has_index_metadata(&self, index_name: &str) -> bool

Check if index metadata exists

pub fn has_tag_metadata(&self, tag_name: &str) -> bool

Check if tag metadata exists

pub fn has_edge_type_metadata(&self, edge_type: &str) -> bool

Check if edge type metadata exists

pub fn get_all_indexes(&self) -> impl Iterator<Item = &IndexMetadata>

Get all index metadata

pub fn get_all_tags(&self) -> impl Iterator<Item = &TagMetadata>

Get all tag metadata

pub fn get_all_edge_types(&self) -> impl Iterator<Item = &EdgeTypeMetadata>

Get all edge type metadata

pub fn clear(&mut self)

Clear all metadata

pub fn merge(&mut self, other: MetadataContext)

Merge another metadata context into this one

pub fn find_vector_index_by_field( &self, space_id: u64, field_name: &str, ) -> Option<&IndexMetadata>

Find a vector index by space_id and field name

pub fn find_fulltext_index_by_field( &self, space_id: u64, field_name: &str, ) -> Option<&IndexMetadata>

Find a fulltext index by space_id and field name

pub fn find_index_by_name( &self, index_name: &str, index_type: Option<IndexType>, ) -> Option<&IndexMetadata>

Find an index by name and optional type filter

Trait Implementations

impl Clone for MetadataContext

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MetadataContext

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

Formats the value using the given formatter.

impl Default for MetadataContext

fn default() -> Self

Returns the “default value” for a type.