queryAsync()
A MilvusClient interface. This method queries entity(s) asynchronously based on scalar field(s) filtered by boolean expression.
The order of the returned entities cannot be guaranteed.
ListenableFuture<R<QueryResults>> queryAsync(QueryParam requestParam);
This method uses the same parameter as . It invokes RPC interface and returns a ListenableFuture object immediately.
Example
import io.milvus.param.*;
import io.milvus.grpc.QueryResults;
import com.google.common.util.concurrent.ListenableFuture;
QueryParam param = QueryParam.newBuilder()
.withCollectionName("collection1")
.withExpr("id in [100, 101]")
.addOutFields("field1")
.withConsistencyLevel(ConsistencyLevelEnum.EVENTUALLY)
.build();
ListenableFuture<R<QueryResults>> futureResults = client.queryAsync(param);
R<QueryResults> response = futureResults.get();
if (response.getStatus() != R.Status.Success.getCode()) {
System.out.println(response.getMessage());
}