Package org.apache.iotdb.db.mpp.plan.planner.plan.parameter

Class GroupByLevelDescriptor

java.lang.Object

org.apache.iotdb.db.mpp.plan.planner.plan.parameter.AggregationDescriptor

org.apache.iotdb.db.mpp.plan.planner.plan.parameter.GroupByLevelDescriptor

public class GroupByLevelDescriptor
extends AggregationDescriptor

Field Summary

Fields inherited from class org.apache.iotdb.db.mpp.plan.planner.plan.parameter.AggregationDescriptor

aggregationFuncName, aggregationType, inputExpressions, step

Constructor Summary

Constructors

Constructor	Description
GroupByLevelDescriptor(java.lang.String aggregationFuncName, AggregationStep step, java.util.List<Expression> inputExpressions, Expression outputExpression)
GroupByLevelDescriptor(AggregationDescriptor aggregationDescriptor, Expression outputExpression)

Method Summary

Modifier and Type	Method	Description
GroupByLevelDescriptor	deepClone()
static GroupByLevelDescriptor	deserialize(java.nio.ByteBuffer byteBuffer)
boolean	equals(java.lang.Object o)
java.util.Map<java.lang.String,Expression>	getInputColumnCandidateMap()
Expression	getOutputExpression()
java.lang.String	getParametersString()	Generates the parameter part of the function column name.
int	hashCode()
void	serialize(java.io.DataOutputStream stream)
void	serialize(java.nio.ByteBuffer byteBuffer)

Methods inherited from class org.apache.iotdb.db.mpp.plan.planner.plan.parameter.AggregationDescriptor

getActualAggregationNames, getAggregationFuncName, getAggregationType, getInputColumnNames, getInputColumnNamesList, getInputExpressions, getOutputColumnNames, getStep, setInputExpressions, setStep, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

GroupByLevelDescriptor

public GroupByLevelDescriptor(java.lang.String aggregationFuncName,
                              AggregationStep step,
                              java.util.List<Expression> inputExpressions,
                              Expression outputExpression)

GroupByLevelDescriptor

public GroupByLevelDescriptor(AggregationDescriptor aggregationDescriptor,
                              Expression outputExpression)

Method Detail

getOutputExpression

public Expression getOutputExpression()

getParametersString

public java.lang.String getParametersString()

Description copied from class: AggregationDescriptor

Generates the parameter part of the function column name.

Example:

Full column name -> udf(root.sg.d.s1, sin(root.sg.d.s1))

The parameter part -> root.sg.d.s1, sin(root.sg.d.s1)

Overrides:

getParametersString in class AggregationDescriptor

getInputColumnCandidateMap

public java.util.Map<java.lang.String,Expression> getInputColumnCandidateMap()

Overrides:

getInputColumnCandidateMap in class AggregationDescriptor

deepClone

public GroupByLevelDescriptor deepClone()

Overrides:

deepClone in class AggregationDescriptor

serialize

public void serialize(java.nio.ByteBuffer byteBuffer)

Overrides:

serialize in class AggregationDescriptor

serialize

public void serialize(java.io.DataOutputStream stream)
               throws java.io.IOException

Overrides:

serialize in class AggregationDescriptor

Throws:

java.io.IOException

deserialize

public static GroupByLevelDescriptor deserialize(java.nio.ByteBuffer byteBuffer)

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class AggregationDescriptor

hashCode

public int hashCode()

Overrides:

hashCode in class AggregationDescriptor