org.apache.calcite.plan

Interface Convention

All Superinterfaces:

RelTrait

All Known Implementing Classes:

BindableConvention, Convention.Impl, EnumerableConvention, InterpretableConvention, JdbcConvention

public interface Convention
extends RelTrait

Calling convention trait.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	Convention.Impl Default implementation.

Field Summary

Fields

Modifier and Type	Field and Description
static Convention	NONE Convention that for a relational expression that does not support any convention.

Method Summary

Methods

Modifier and Type	Method and Description
Class	getInterface()
String	getName()

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

equals, getTraitDef, hashCode, register, satisfies, toString

Field Detail

NONE

static final Convention NONE

Convention that for a relational expression that does not support any convention. It is not implementable, and has to be transformed to something else in order to be implemented.

Relational expressions generally start off in this form.

Such expressions always have infinite cost.

Method Detail

getInterface

Class getInterface()

getName

String getName()