org.apache.calcite.plan

Class SubstitutionVisitor.InternalOperand

java.lang.Object

org.apache.calcite.plan.SubstitutionVisitor.Operand

org.apache.calcite.plan.SubstitutionVisitor.InternalOperand

Enclosing class:

SubstitutionVisitor

private static class SubstitutionVisitor.InternalOperand
extends SubstitutionVisitor.Operand

Operand to a SubstitutionVisitor.UnifyRule that matches a relational expression of a given type. It has zero or more child operands.

Field Summary

Fields

Modifier and Type	Field and Description
private List<SubstitutionVisitor.Operand>	inputs

Fields inherited from class org.apache.calcite.plan.SubstitutionVisitor.Operand

clazz

Constructor Summary

Constructors

Constructor and Description
InternalOperand(Class<? extends MutableRel> clazz, List<SubstitutionVisitor.Operand> inputs)

Method Summary

Modifier and Type	Method and Description
private static boolean	allMatch(SubstitutionVisitor visitor, List<SubstitutionVisitor.Operand> operands, List<MutableRel> rels)
private static boolean	allWeaker(SubstitutionVisitor visitor, List<SubstitutionVisitor.Operand> operands, List<MutableRel> rels)
boolean	isWeaker(SubstitutionVisitor visitor, MutableRel rel)
boolean	matches(SubstitutionVisitor visitor, MutableRel rel)

Methods inherited from class java.lang.Object

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

Field Detail

inputs

private final List<SubstitutionVisitor.Operand> inputs

Constructor Detail

InternalOperand

InternalOperand(Class<? extends MutableRel> clazz,
                List<SubstitutionVisitor.Operand> inputs)

Method Detail

matches

public boolean matches(SubstitutionVisitor visitor,
                       MutableRel rel)

Specified by:

matches in class SubstitutionVisitor.Operand

isWeaker

public boolean isWeaker(SubstitutionVisitor visitor,
                        MutableRel rel)

Overrides:

isWeaker in class SubstitutionVisitor.Operand

allMatch

private static boolean allMatch(SubstitutionVisitor visitor,
                                List<SubstitutionVisitor.Operand> operands,
                                List<MutableRel> rels)

allWeaker

private static boolean allWeaker(SubstitutionVisitor visitor,
                                 List<SubstitutionVisitor.Operand> operands,
                                 List<MutableRel> rels)