org.apache.iotdb.db.query.executor

类 QueryRouter

java.lang.Object

org.apache.iotdb.db.query.executor.QueryRouter

所有已实现的接口:

IQueryRouter

public class QueryRouter
extends Object
implements IQueryRouter

Query entrance class of IoTDB query process. All query clause will be transformed to physical plan, physical plan will be executed by EngineQueryRouter.

构造器概要

构造器

构造器和说明
QueryRouter()

方法概要

限定符和类型	方法和说明
QueryDataSet	aggregate(AggregationPlan aggregationPlan, QueryContext context) Execute aggregation query.
QueryDataSet	fill(FillQueryPlan fillQueryPlan, QueryContext context) Execute fill query.
protected AggregationExecutor	getAggregationExecutor(QueryContext context, AggregationPlan aggregationPlan)
protected FillQueryExecutor	getFillExecutor(FillQueryPlan plan)
protected GroupByWithoutValueFilterDataSet	getGroupByWithoutValueFilterDataSet(QueryContext context, GroupByTimePlan plan)
protected GroupByWithValueFilterDataSet	getGroupByWithValueFilterDataSet(QueryContext context, GroupByTimePlan plan)
protected LastQueryExecutor	getLastQueryExecutor(LastQueryPlan lastQueryPlan)
protected RawDataQueryExecutor	getRawDataQueryExecutor(RawDataQueryPlan queryPlan)
QueryDataSet	groupBy(GroupByTimePlan groupByTimePlan, QueryContext context) Execute groupBy query.
QueryDataSet	groupByFill(GroupByTimeFillPlan groupByFillPlan, QueryContext context) Execute group by fill query
QueryDataSet	lastQuery(LastQueryPlan lastQueryPlan, QueryContext context) Execute last query
QueryDataSet	rawDataQuery(RawDataQueryPlan queryPlan, QueryContext context) Execute physical plan.
QueryDataSet	udafQuery(UDAFPlan udafPlan, QueryContext context) Execute UDAF query.
QueryDataSet	udtfQuery(UDTFPlan udtfPlan, QueryContext context) Execute UDTF query

从类继承的方法 java.lang.Object

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

构造器详细资料

QueryRouter

public QueryRouter()

方法详细资料

rawDataQuery

public QueryDataSet rawDataQuery(RawDataQueryPlan queryPlan,
                                 QueryContext context)
                          throws StorageEngineException,
                                 QueryProcessException

从接口复制的说明: IQueryRouter

Execute physical plan.

指定者:

rawDataQuery 在接口中 IQueryRouter

抛出:

StorageEngineException

QueryProcessException

getRawDataQueryExecutor

protected RawDataQueryExecutor getRawDataQueryExecutor(RawDataQueryPlan queryPlan)

aggregate

public QueryDataSet aggregate(AggregationPlan aggregationPlan,
                              QueryContext context)
                       throws StorageEngineException,
                              QueryProcessException,
                              IOException

从接口复制的说明: IQueryRouter

Execute aggregation query.

指定者:

aggregate 在接口中 IQueryRouter

抛出:

StorageEngineException

QueryProcessException

IOException

udafQuery

public QueryDataSet udafQuery(UDAFPlan udafPlan,
                              QueryContext context)
                       throws QueryFilterOptimizationException,
                              StorageEngineException,
                              IOException,
                              QueryProcessException

从接口复制的说明: IQueryRouter

Execute UDAF query.

指定者:

udafQuery 在接口中 IQueryRouter

抛出:

QueryFilterOptimizationException

StorageEngineException

IOException

QueryProcessException

getAggregationExecutor

protected AggregationExecutor getAggregationExecutor(QueryContext context,
                                                     AggregationPlan aggregationPlan)

groupBy

public QueryDataSet groupBy(GroupByTimePlan groupByTimePlan,
                            QueryContext context)
                     throws QueryFilterOptimizationException,
                            StorageEngineException,
                            QueryProcessException,
                            IOException

从接口复制的说明: IQueryRouter

Execute groupBy query.

指定者:

groupBy 在接口中 IQueryRouter

抛出:

QueryFilterOptimizationException

StorageEngineException

QueryProcessException

IOException

getGroupByWithoutValueFilterDataSet

protected GroupByWithoutValueFilterDataSet getGroupByWithoutValueFilterDataSet(QueryContext context,
                                                                               GroupByTimePlan plan)

getGroupByWithValueFilterDataSet

protected GroupByWithValueFilterDataSet getGroupByWithValueFilterDataSet(QueryContext context,
                                                                         GroupByTimePlan plan)

fill

public QueryDataSet fill(FillQueryPlan fillQueryPlan,
                         QueryContext context)
                  throws StorageEngineException,
                         QueryProcessException,
                         IOException

从接口复制的说明: IQueryRouter

Execute fill query.

指定者:

fill 在接口中 IQueryRouter

抛出:

StorageEngineException

QueryProcessException

IOException

getFillExecutor

protected FillQueryExecutor getFillExecutor(FillQueryPlan plan)

groupByFill

public QueryDataSet groupByFill(GroupByTimeFillPlan groupByFillPlan,
                                QueryContext context)
                         throws StorageEngineException,
                                QueryProcessException

从接口复制的说明: IQueryRouter

Execute group by fill query

指定者:

groupByFill 在接口中 IQueryRouter

抛出:

StorageEngineException

QueryProcessException

lastQuery

public QueryDataSet lastQuery(LastQueryPlan lastQueryPlan,
                              QueryContext context)
                       throws StorageEngineException,
                              QueryProcessException,
                              IOException

从接口复制的说明: IQueryRouter

Execute last query

指定者:

lastQuery 在接口中 IQueryRouter

抛出:

StorageEngineException

QueryProcessException

IOException

getLastQueryExecutor

protected LastQueryExecutor getLastQueryExecutor(LastQueryPlan lastQueryPlan)

udtfQuery

public QueryDataSet udtfQuery(UDTFPlan udtfPlan,
                              QueryContext context)
                       throws StorageEngineException,
                              QueryProcessException,
                              IOException,
                              InterruptedException

从接口复制的说明: IQueryRouter

Execute UDTF query

指定者:

udtfQuery 在接口中 IQueryRouter

抛出:

StorageEngineException

QueryProcessException

IOException

InterruptedException