Package com.couchbase.client.java.query

Class QueryAccessor

java.lang.Object

com.couchbase.client.java.query.QueryAccessor

@Internal
public class QueryAccessor
extends Object

Converts requests and responses for N1QL queries.

Note that this accessor also transparently deals with prepared statements and the associated query cache.

Also, this class has internal functionality and is not intended to be called from the user directly.

Constructor Summary

Constructors

Constructor	Description
QueryAccessor(Core core)

Method Summary

Modifier and Type	Method	Description
CompletableFuture<QueryResult>	queryAsync(QueryRequest request, QueryOptions.Built options, JsonSerializer serializer)	Performs a N1QL query and returns the result as a future.
Mono<ReactiveQueryResult>	queryReactive(QueryRequest request, QueryOptions.Built options, JsonSerializer serializer)	Performs a N1QL query and returns the result as a future.
static QueryRequest	targetedQueryRequest(String statement, byte[] queryBytes, String clientContextId, NodeIdentifier target, boolean readonly, RetryStrategy retryStrategy, Duration timeout, RequestSpan parentSpan, Core core)	Used by the transactions library, this provides some binary interface protection against QueryRequest/TargetedQueryRequest changing.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

QueryAccessor

public QueryAccessor(Core core)

Method Detail

queryAsync

public CompletableFuture<QueryResult> queryAsync(QueryRequest request,
                                                 QueryOptions.Built options,
                                                 JsonSerializer serializer)

Performs a N1QL query and returns the result as a future.

Note that compared to the reactive method, this one collects the rows into a list and makes sure everything is part of the result. If you need backpressure, go with reactive.

Parameters:

request - the request to perform.

options - query options to use.

Returns:

the future once the result is complete.

queryReactive

public Mono<ReactiveQueryResult> queryReactive(QueryRequest request,
                                               QueryOptions.Built options,
                                               JsonSerializer serializer)

Performs a N1QL query and returns the result as a future.

Parameters:

request - the request to perform.

options - query options to use.

Returns:

the mono once the result is complete.

targetedQueryRequest

@Internal
public static QueryRequest targetedQueryRequest(String statement,
                                                byte[] queryBytes,
                                                String clientContextId,
                                                @Nullable
                                                NodeIdentifier target,
                                                boolean readonly,
                                                RetryStrategy retryStrategy,
                                                Duration timeout,
                                                RequestSpan parentSpan,
                                                Core core)

Used by the transactions library, this provides some binary interface protection against QueryRequest/TargetedQueryRequest changing.