Package org.apache.calcite.rel.metadata

Class RelMdMeasure.DelegatingContext

java.lang.Object

org.apache.calcite.rel.metadata.RelMdMeasure.DelegatingContext

All Implemented Interfaces:

BuiltInMetadata.Measure.Context

Enclosing class:

RelMdMeasure

public abstract static class RelMdMeasure.DelegatingContext
extends Object
implements BuiltInMetadata.Measure.Context

Implementation of Context that delegates to another Context.

Field Summary

Fields

Modifier and Type	Field	Description
protected final BuiltInMetadata.Measure.Context	context

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	DelegatingContext(BuiltInMetadata.Measure.Context context)

Method Summary

Modifier and Type	Method	Description
int	getDimensionCount()	Returns the number of dimension columns.
List<RexNode>	getFilters(RelBuilder b)	Returns a (conjunctive) list of filters.
RelBuilder	getRelBuilder()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.rel.metadata.BuiltInMetadata.Measure.Context

getRexBuilder, getTypeFactory

Field Details

context

protected final BuiltInMetadata.Measure.Context context

Constructor Details

DelegatingContext

protected DelegatingContext(BuiltInMetadata.Measure.Context context)

Method Details

getRelBuilder

public RelBuilder getRelBuilder()

Specified by:

getRelBuilder in interface BuiltInMetadata.Measure.Context

getFilters

public List<RexNode> getFilters(RelBuilder b)

Description copied from interface: BuiltInMetadata.Measure.Context

Returns a (conjunctive) list of filters.

The filters represent the "filter context" and will become the WHERE clause of the subquery.

If the relation defining the measure has N dimensions then the dimensions can be referenced using RexInputRef 0 through N-1.

Specified by:

getFilters in interface BuiltInMetadata.Measure.Context

getDimensionCount

public int getDimensionCount()

Description copied from interface: BuiltInMetadata.Measure.Context

Returns the number of dimension columns.

Specified by:

getDimensionCount in interface BuiltInMetadata.Measure.Context