Package org.apache.iotdb.db.qp.logical.crud

Class AggregationQueryOperator

java.lang.Object

org.apache.iotdb.db.qp.logical.Operator

org.apache.iotdb.db.qp.logical.crud.QueryOperator

org.apache.iotdb.db.qp.logical.crud.AggregationQueryOperator

Direct Known Subclasses:

GroupByQueryOperator

public class AggregationQueryOperator
extends QueryOperator

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.iotdb.db.qp.logical.Operator

Operator.OperatorType

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	ERROR_MESSAGE1

Fields inherited from class org.apache.iotdb.db.qp.logical.crud.QueryOperator

enableTracing, fromComponent, indexType, props, selectComponent, specialClauseComponent, whereComponent

Fields inherited from class org.apache.iotdb.db.qp.logical.Operator

isDebug, isPrefixMatchPath, operatorType, tokenIntType

Constructor Summary

Constructors

Constructor	Description
AggregationQueryOperator()
AggregationQueryOperator(QueryOperator queryOperator)

Method Summary

Modifier and Type	Method	Description
void	check()
protected void	checkSelectComponent(SelectComponent selectComponent)
protected AlignByDevicePlan	generateAlignByDevicePlan(PhysicalGenerator generator)
PhysicalPlan	generatePhysicalPlan(PhysicalGenerator generator)
protected AggregationPlan	initAggregationPlan(QueryPlan queryPlan)
protected void	initGroupByLevel(AggregationPlan aggregationPlan)

Methods inherited from class org.apache.iotdb.db.qp.logical.crud.QueryOperator

generateRawDataQueryPlan, getAliasSet, getFromComponent, getIndexType, getLevels, getMatchedDevices, getMatchedTimeseries, getProps, getSelectComponent, getSpecialClauseComponent, getWhereComponent, hasAggregationFunction, hasSlimit, hasSoffset, hasTimeSeriesGeneratingFunction, isAlignByDevice, isAlignByTime, isEnableTracing, isGroupByLevel, optimizeExpression, resetSLimitOffset, setAliasSet, setEnableTracing, setFromComponent, setIndexType, setProps, setSelectComponent, setSpecialClauseComponent, setWhereComponent, transformFilterOperatorToExpression

Methods inherited from class org.apache.iotdb.db.qp.logical.Operator

getTokenIntType, getType, isDebug, isPrefixMatchPath, isQuery, setDebug, setOperatorType, setPrefixMatchPath, toString

Methods inherited from class java.lang.Object

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

Field Detail

ERROR_MESSAGE1

public static final java.lang.String ERROR_MESSAGE1

See Also:

Constant Field Values

Constructor Detail

AggregationQueryOperator

public AggregationQueryOperator()

AggregationQueryOperator

public AggregationQueryOperator(QueryOperator queryOperator)

Method Detail

check

public void check()
           throws LogicalOperatorException

Overrides:

check in class QueryOperator

Throws:

LogicalOperatorException

checkSelectComponent

protected void checkSelectComponent(SelectComponent selectComponent)
                             throws LogicalOperatorException

Throws:

LogicalOperatorException

generatePhysicalPlan

public PhysicalPlan generatePhysicalPlan(PhysicalGenerator generator)
                                  throws QueryProcessException

Overrides:

generatePhysicalPlan in class QueryOperator

Throws:

QueryProcessException

generateAlignByDevicePlan

protected AlignByDevicePlan generateAlignByDevicePlan(PhysicalGenerator generator)
                                               throws QueryProcessException

Overrides:

generateAlignByDevicePlan in class QueryOperator

Throws:

QueryProcessException

initAggregationPlan

protected AggregationPlan initAggregationPlan(QueryPlan queryPlan)
                                       throws QueryProcessException

Throws:

QueryProcessException

initGroupByLevel

protected void initGroupByLevel(AggregationPlan aggregationPlan)
                         throws QueryProcessException

Throws:

QueryProcessException