Class FullTextDdbWriter

Write-only DynamoDB helper for indexing documents and token stats.

Hierarchy (View Summary)

FullTextDdbWriter
- FullTextDdbBackend

Index

Constructors

Methods

buildTokenStatsWrite writeDocument

Constructors

constructor

new FullTextDdbWriter(config: FullTextDdbWriterConfig): FullTextDdbWriter
Parameters
- config: FullTextDdbWriterConfig
  Writer configuration including client and table names.
Returns FullTextDdbWriter
- Defined in api/Indexing/fulltext/FullTextDdbBackend.ts:202

Methods

`Protected`buildTokenStatsWrite

buildTokenStatsWrite(
    token: string,
    indexField: string,
    delta: number,
): Promise<TableWrite | undefined>
Build a token stats write request for a document frequency delta.
Parameters
- token: string
  Token value to update stats for.
- indexField: string
  Field name the token was indexed under.
- delta: number
  Delta to apply to document frequency.
Returns Promise<TableWrite | undefined>
Write request or undefined when no update is needed.
- Defined in api/Indexing/fulltext/FullTextDdbBackend.ts:221

writeDocument

writeDocument(
    document: DocumentRecord,
    primaryField: string,
    indexField: string,
): Promise<void>
Write a document to lossy/exact postings and token stats tables.
Parameters
- document: DocumentRecord
  Document record to index.
- primaryField: string
  Field name used as the document id.
- indexField: string
  Field name containing the text to index.
Returns Promise<void>
Promise resolved once all writes complete.
- Defined in api/Indexing/fulltext/FullTextDdbBackend.ts:302