Package org.apache.calcite.rel.rules

Class ProjectSortTransposeRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

org.apache.calcite.rel.rules.ProjectSortTransposeRule

Direct Known Subclasses:

DruidRules.DruidProjectSortTransposeRule

public class ProjectSortTransposeRule
extends RelOptRule

Planner rule that pushes a Project past a Sort.

See Also:

SortProjectTransposeRule

Field Summary

Fields

Modifier and Type	Field	Description
static ProjectSortTransposeRule	INSTANCE

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

description, operands, relBuilderFactory

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ProjectSortTransposeRule(java.lang.Class<Project> projectClass, java.lang.Class<Sort> sortClass, RelBuilderFactory relBuilderFactory)	Creates a ProjectSortTransposeRule.
protected	ProjectSortTransposeRule(RelOptRuleOperand operand)	Deprecated.
protected	ProjectSortTransposeRule(RelOptRuleOperand operand, RelBuilderFactory relBuilderFactory, java.lang.String description)	Creates a ProjectSortTransposeRule with an operand.

Method Summary

Modifier and Type	Method	Description
void	onMatch(RelOptRuleCall call)	Receives notification about a rule match.

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

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

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final ProjectSortTransposeRule INSTANCE

Constructor Detail

ProjectSortTransposeRule

private ProjectSortTransposeRule(java.lang.Class<Project> projectClass,
                                 java.lang.Class<Sort> sortClass,
                                 RelBuilderFactory relBuilderFactory)

Creates a ProjectSortTransposeRule.

ProjectSortTransposeRule

@Deprecated
protected ProjectSortTransposeRule(RelOptRuleOperand operand)

Deprecated.

ProjectSortTransposeRule

protected ProjectSortTransposeRule(RelOptRuleOperand operand,
                                   RelBuilderFactory relBuilderFactory,
                                   java.lang.String description)

Creates a ProjectSortTransposeRule with an operand.

Method Detail

onMatch

public void onMatch(RelOptRuleCall call)

Description copied from class: RelOptRule

Receives notification about a rule match. At the time that this method is called, call.rels holds the set of relational expressions which match the operands to the rule; call.rels[0] is the root expression.

Typically a rule would check that the nodes are valid matches, creates a new expression, then calls back RelOptRuleCall.transformTo(org.apache.calcite.rel.RelNode, java.util.Map<org.apache.calcite.rel.RelNode, org.apache.calcite.rel.RelNode>) to register the expression.

Specified by:

onMatch in class RelOptRule

Parameters:

call - Rule call

See Also:

RelOptRule.matches(RelOptRuleCall)