Package org.apache.calcite.plan

Class SubstitutionVisitor.Operand

java.lang.Object

org.apache.calcite.plan.SubstitutionVisitor.Operand

Enclosing class:

SubstitutionVisitor

public abstract static class SubstitutionVisitor.Operand
extends Object

Operand to a SubstitutionVisitor.UnifyRule.

Field Summary

Fields

Modifier and Type	Field	Description
protected final Class<? extends MutableRel>	clazz

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Operand(Class<? extends MutableRel> clazz)

Method Summary

Modifier and Type	Method	Description
boolean	isWeaker(SubstitutionVisitor visitor, MutableRel rel)
abstract 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 Details

clazz

protected final Class<? extends MutableRel> clazz

Constructor Details

Operand

protected Operand(Class<? extends MutableRel> clazz)

Method Details

matches

public abstract boolean matches(SubstitutionVisitor visitor,
 MutableRel rel)

isWeaker

public boolean isWeaker(SubstitutionVisitor visitor,
 MutableRel rel)