Class QueryDispatcher

Routes classified queries to the strategy-appropriate retrieval pipeline.

Supports both the new strategy-based dispatch (dispatchByStrategy) and the legacy tier-based dispatch (dispatch) for backward compatibility.

Example

const dispatcher = new QueryDispatcher({
  vectorSearch: async (q, k) => vectorStore.search(q, k),
  hydeSearch:   async (q, k) => hydeRetriever.search(q, k),
  decompose:    async (q, max) => decomposer.decompose(q, max),
  graphExpand:  async (seeds) => graphRag.expand(seeds),
  rerank:       async (q, chunks, n) => reranker.rerank(q, chunks, n),
  deepResearch: async (q, srcs) => researcher.research(q, srcs),
  emit:         (e) => eventBus.emit(e),
  graphEnabled: true,
  deepResearchEnabled: true,
});

// Strategy-based (preferred):
const result = await dispatcher.dispatchByStrategy('How does auth work?', 'moderate');

// Tier-based (legacy):
const result = await dispatcher.dispatch('How does auth work?', 2);
Copy