searchAsync()

Performs a vector search asynchronously and returns a future.

public CompletableFuture<SearchResp> searchAsync(SearchReq request)

This method uses the same request parameters as search() but returns a CompletableFuture<SearchResp> immediately. Use the returned future to consume the result or handle the exceptional completion when the operation fails.

Request Syntax

CompletableFuture<SearchResp> future = client.searchAsync(SearchReq.builder()
    .collectionName(String collectionName)
    .data(List<BaseVector> data)
    .annsField(String annsField)
    .limit(long limit)
    .build());

For the full list of SearchReq builder methods, refer to search().

RETURNS:

CompletableFuture

A future completed with a SearchResp, or completed exceptionally when the operation fails.

EXCEPTIONS:

• MilvusClientException

  This exception will be raised when request validation, transport, or server execution fails.

Example

import io.milvus.v2.client.ConnectConfig;
import io.milvus.v2.client.MilvusClientV2;
import io.milvus.v2.service.vector.request.SearchReq;
import io.milvus.v2.service.vector.request.data.FloatVec;
import io.milvus.v2.service.vector.response.SearchResp;

import java.util.Collections;
import java.util.concurrent.CompletableFuture;

ConnectConfig connectConfig = ConnectConfig.builder()
        .uri("http://localhost:19530")
        .token("root:Milvus")
        .build();

MilvusClientV2 client = new MilvusClientV2(connectConfig);

CompletableFuture<SearchResp> future = client.searchAsync(SearchReq.builder()
        .collectionName("my_collection")
        .data(Collections.singletonList(new FloatVec(new float[]{0.1f, 0.2f, 0.3f})))
        .annsField("vector")
        .limit(10)
        .build());
SearchResp response = future.get();