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

Class QueryOperator

java.lang.Object

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

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

Direct Known Subclasses:

AggregationQueryOperator, FillQueryOperator, InfluxQueryOperator, LastQueryOperator, UDAFQueryOperator, UDTFQueryOperator

public class QueryOperator
extends Operator

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
protected boolean	enableTracing
protected FromComponent	fromComponent
protected IndexType	indexType
protected java.util.Map<java.lang.String,java.lang.Object>	props
protected SelectComponent	selectComponent
protected SpecialClauseComponent	specialClauseComponent
protected WhereComponent	whereComponent

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

isDebug, isPrefixMatchPath, operatorType, tokenIntType

Constructor Summary

Constructors

Constructor	Description
QueryOperator()
QueryOperator(QueryOperator queryOperator)

Method Summary

Modifier and Type	Method	Description
void	check()
protected AlignByDevicePlan	generateAlignByDevicePlan(PhysicalGenerator generator)
PhysicalPlan	generatePhysicalPlan(PhysicalGenerator generator)
protected QueryPlan	generateRawDataQueryPlan(PhysicalGenerator generator, QueryPlan queryPlan)
java.util.Set<java.lang.String>	getAliasSet()
FromComponent	getFromComponent()
IndexType	getIndexType()
int[]	getLevels()
protected java.util.Set<org.apache.iotdb.commons.path.PartialPath>	getMatchedDevices(org.apache.iotdb.commons.path.PartialPath path)
protected java.util.List<MeasurementPath>	getMatchedTimeseries(org.apache.iotdb.commons.path.PartialPath path)
java.util.Map<java.lang.String,java.lang.Object>	getProps()
SelectComponent	getSelectComponent()
SpecialClauseComponent	getSpecialClauseComponent()
WhereComponent	getWhereComponent()
boolean	hasAggregationFunction()
boolean	hasSlimit()
boolean	hasSoffset()
boolean	hasTimeSeriesGeneratingFunction()
boolean	isAlignByDevice()
boolean	isAlignByTime()
boolean	isEnableTracing()
boolean	isGroupByLevel()
protected org.apache.iotdb.tsfile.read.expression.IExpression	optimizeExpression(org.apache.iotdb.tsfile.read.expression.IExpression expression, RawDataQueryPlan queryPlan)
void	resetSLimitOffset()	Reset sLimit and sOffset to zero.
void	setAliasSet(java.util.Set<java.lang.String> aliasSet)
void	setEnableTracing(boolean enableTracing)
void	setFromComponent(FromComponent fromComponent)
void	setIndexType(IndexType indexType)
void	setProps(java.util.Map<java.lang.String,java.lang.Object> props)
void	setSelectComponent(SelectComponent selectComponent)
void	setSpecialClauseComponent(SpecialClauseComponent specialClauseComponent)
void	setWhereComponent(WhereComponent whereComponent)
protected org.apache.iotdb.tsfile.read.expression.IExpression	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

selectComponent

protected SelectComponent selectComponent

fromComponent

protected FromComponent fromComponent

whereComponent

protected WhereComponent whereComponent

specialClauseComponent

protected SpecialClauseComponent specialClauseComponent

props

protected java.util.Map<java.lang.String,java.lang.Object> props

indexType

protected IndexType indexType

enableTracing

protected boolean enableTracing

Constructor Detail

QueryOperator

public QueryOperator()

QueryOperator

public QueryOperator(QueryOperator queryOperator)

Method Detail

setAliasSet

public void setAliasSet(java.util.Set<java.lang.String> aliasSet)

getAliasSet

public java.util.Set<java.lang.String> getAliasSet()

getSelectComponent

public SelectComponent getSelectComponent()

setSelectComponent

public void setSelectComponent(SelectComponent selectComponent)

getFromComponent

public FromComponent getFromComponent()

setFromComponent

public void setFromComponent(FromComponent fromComponent)

getWhereComponent

public WhereComponent getWhereComponent()

setWhereComponent

public void setWhereComponent(WhereComponent whereComponent)

setSpecialClauseComponent

public void setSpecialClauseComponent(SpecialClauseComponent specialClauseComponent)

getSpecialClauseComponent

public SpecialClauseComponent getSpecialClauseComponent()

getProps

public java.util.Map<java.lang.String,java.lang.Object> getProps()

setProps

public void setProps(java.util.Map<java.lang.String,java.lang.Object> props)

getIndexType

public IndexType getIndexType()

setIndexType

public void setIndexType(IndexType indexType)

hasAggregationFunction

public boolean hasAggregationFunction()

hasTimeSeriesGeneratingFunction

public boolean hasTimeSeriesGeneratingFunction()

isAlignByDevice

public boolean isAlignByDevice()

isAlignByTime

public boolean isAlignByTime()

isGroupByLevel

public boolean isGroupByLevel()

getLevels

public int[] getLevels()

hasSlimit

public boolean hasSlimit()

hasSoffset

public boolean hasSoffset()

resetSLimitOffset

public void resetSLimitOffset()

Reset sLimit and sOffset to zero.

check

public void check()
           throws LogicalOperatorException

Throws:

LogicalOperatorException

generatePhysicalPlan

public PhysicalPlan generatePhysicalPlan(PhysicalGenerator generator)
                                  throws QueryProcessException

Overrides:

generatePhysicalPlan in class Operator

Throws:

QueryProcessException

generateRawDataQueryPlan

protected QueryPlan generateRawDataQueryPlan(PhysicalGenerator generator,
                                             QueryPlan queryPlan)
                                      throws QueryProcessException

Throws:

QueryProcessException

transformFilterOperatorToExpression

protected org.apache.iotdb.tsfile.read.expression.IExpression transformFilterOperatorToExpression()
                                                                                           throws QueryProcessException

Throws:

QueryProcessException

optimizeExpression

protected org.apache.iotdb.tsfile.read.expression.IExpression optimizeExpression(org.apache.iotdb.tsfile.read.expression.IExpression expression,
                                                                                 RawDataQueryPlan queryPlan)
                                                                          throws QueryProcessException

Throws:

QueryProcessException

generateAlignByDevicePlan

protected AlignByDevicePlan generateAlignByDevicePlan(PhysicalGenerator generator)
                                               throws QueryProcessException

Throws:

QueryProcessException

getMatchedDevices

protected java.util.Set<org.apache.iotdb.commons.path.PartialPath> getMatchedDevices(org.apache.iotdb.commons.path.PartialPath path)
                                                                              throws org.apache.iotdb.commons.exception.MetadataException

Throws:

org.apache.iotdb.commons.exception.MetadataException

getMatchedTimeseries

protected java.util.List<MeasurementPath> getMatchedTimeseries(org.apache.iotdb.commons.path.PartialPath path)
                                                        throws org.apache.iotdb.commons.exception.MetadataException

Throws:

org.apache.iotdb.commons.exception.MetadataException

isEnableTracing

public boolean isEnableTracing()

setEnableTracing

public void setEnableTracing(boolean enableTracing)