Package org.apache.calcite.adapter.mongodb

Class MongoAggregate

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.SingleRel

org.apache.calcite.rel.core.Aggregate

org.apache.calcite.adapter.mongodb.MongoAggregate

All Implemented Interfaces:

java.lang.Cloneable, MongoRel, RelOptNode, RelNode

public class MongoAggregate
extends Aggregate
implements MongoRel

Implementation of Aggregate relational expression in MongoDB.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.rel.core.Aggregate

Aggregate.AggCallBinding, Aggregate.Group

Nested classes/interfaces inherited from interface org.apache.calcite.adapter.mongodb.MongoRel

MongoRel.Implementor

Nested classes/interfaces inherited from interface org.apache.calcite.rel.RelNode

RelNode.Context

Field Summary

Fields inherited from class org.apache.calcite.rel.core.Aggregate

aggCalls, groupSet, groupSets, indicator, IS_NOT_GRAND_TOTAL, IS_SIMPLE, NO_INDICATOR

Fields inherited from class org.apache.calcite.rel.SingleRel

input

Fields inherited from class org.apache.calcite.rel.AbstractRelNode

digest, id, rowType, traitSet

Fields inherited from interface org.apache.calcite.adapter.mongodb.MongoRel

CONVENTION

Constructor Summary

Constructors

Constructor	Description
MongoAggregate(RelOptCluster cluster, RelTraitSet traitSet, RelNode child, boolean indicator, ImmutableBitSet groupSet, java.util.List<ImmutableBitSet> groupSets, java.util.List<AggregateCall> aggCalls)

Method Summary

Modifier and Type	Method	Description
Aggregate	copy(RelTraitSet traitSet, RelNode input, boolean indicator, ImmutableBitSet groupSet, java.util.List<ImmutableBitSet> groupSets, java.util.List<AggregateCall> aggCalls)	Creates a copy of this aggregate.
void	implement(MongoRel.Implementor implementor)
private java.lang.String	toMongo(SqlAggFunction aggregation, java.util.List<java.lang.String> inNames, java.util.List<java.lang.Integer> args)

Methods inherited from class org.apache.calcite.rel.core.Aggregate

computeSelfCost, containsDistinctCall, copy, deriveRowType, deriveRowType, estimateRowCount, explainTerms, getAggCallList, getGroupCount, getGroupSet, getGroupSets, getGroupType, getIndicatorCount, getNamedAggCalls, isNotGrandTotal, isSimple, isValid, noIndicator

Methods inherited from class org.apache.calcite.rel.SingleRel

childrenAccept, getInput, getInputs, replaceInput

Methods inherited from class org.apache.calcite.rel.AbstractRelNode

accept, accept, collectVariablesSet, collectVariablesUsed, computeDigest, computeSelfCost, explain, getChildExps, getCluster, getCollationList, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getQuery, getRelTypeName, getRows, getRowType, getTable, getTraitSet, getVariablesSet, getVariablesStopped, isDistinct, isKey, isValid, metadata, onRegister, recomputeDigest, register, sole, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.rel.RelNode

accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeSelfCost, computeSelfCost, copy, estimateRowCount, explain, getChildExps, getCollationList, getConvention, getCorrelVariable, getExpectedInputRowType, getInput, getInputs, getQuery, getRelTypeName, getRows, getRowType, getTable, getVariablesSet, getVariablesStopped, isDistinct, isKey, isValid, isValid, metadata, onRegister, recomputeDigest, register, replaceInput

Methods inherited from interface org.apache.calcite.plan.RelOptNode

getCluster, getDescription, getDigest, getId, getTraitSet

Constructor Detail

MongoAggregate

public MongoAggregate(RelOptCluster cluster,
                      RelTraitSet traitSet,
                      RelNode child,
                      boolean indicator,
                      ImmutableBitSet groupSet,
                      java.util.List<ImmutableBitSet> groupSets,
                      java.util.List<AggregateCall> aggCalls)
               throws InvalidRelException

Throws:

InvalidRelException

Method Detail

copy

public Aggregate copy(RelTraitSet traitSet,
                      RelNode input,
                      boolean indicator,
                      ImmutableBitSet groupSet,
                      java.util.List<ImmutableBitSet> groupSets,
                      java.util.List<AggregateCall> aggCalls)

Description copied from class: Aggregate

Creates a copy of this aggregate.

Specified by:

copy in class Aggregate

Parameters:

traitSet - Traits

input - Input

indicator - Whether row type should include indicator fields to indicate which grouping set is active; must be true if aggregate is not simple

groupSet - Bit set of grouping fields

groupSets - List of all grouping sets; null for just groupSet

aggCalls - Collection of calls to aggregate functions

Returns:

New Aggregate if any parameter differs from the value of this Aggregate, or just this if all the parameters are the same

See Also:

Aggregate.copy(org.apache.calcite.plan.RelTraitSet, java.util.List)

implement

public void implement(MongoRel.Implementor implementor)

Specified by:

implement in interface MongoRel

toMongo

private java.lang.String toMongo(SqlAggFunction aggregation,
                                 java.util.List<java.lang.String> inNames,
                                 java.util.List<java.lang.Integer> args)