org.apache.calcite.adapter.jdbc

Class JdbcRules.JdbcSortRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

org.apache.calcite.rel.convert.ConverterRule

org.apache.calcite.adapter.jdbc.JdbcRules.JdbcConverterRule

org.apache.calcite.adapter.jdbc.JdbcRules.JdbcSortRule

Enclosing class:

JdbcRules

public static class JdbcRules.JdbcSortRule
extends JdbcRules.JdbcConverterRule

Rule to convert a Sort to an JdbcRules.JdbcSort.

Field Summary

Fields inherited from class org.apache.calcite.adapter.jdbc.JdbcRules.JdbcConverterRule

out

Fields inherited from class org.apache.calcite.plan.RelOptRule

description, operands, relBuilderFactory

Constructor Summary

Constructors

Constructor and Description
JdbcSortRule(JdbcConvention out) Creates a JdbcSortRule.

Method Summary

Modifier and Type	Method and Description
RelNode	convert(RelNode rel) Converts a relational expression to the target trait(s) of this rule.
RelNode	convert(Sort sort, boolean convertInputTraits) Converts a Sort into a JdbcSort.

Methods inherited from class org.apache.calcite.rel.convert.ConverterRule

getInTrait, getOutConvention, getOutTrait, getTraitDef, isGuaranteed, onMatch

Methods inherited from class org.apache.calcite.plan.RelOptRule

any, convert, convert, convertList, convertOperand, equals, equals, getOperand, getOperands, hashCode, matches, none, operand, operand, operand, operand, operand, some, toString, unordered

Methods inherited from class java.lang.Object

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

Constructor Detail

JdbcSortRule

public JdbcSortRule(JdbcConvention out)

Creates a JdbcSortRule.

Method Detail

convert

public RelNode convert(RelNode rel)

Description copied from class: ConverterRule

Converts a relational expression to the target trait(s) of this rule.

Returns null if conversion is not possible.

Specified by:

convert in class ConverterRule

convert

public RelNode convert(Sort sort,
                       boolean convertInputTraits)

Converts a Sort into a JdbcSort.

Parameters:

sort - Sort operator to convert

convertInputTraits - Whether to convert input to sort's JDBC convention

Returns:

A new JdbcSort