org.apache.calcite.plan

Class SubstitutionVisitor.AbstractUnifyRule

java.lang.Object

org.apache.calcite.plan.SubstitutionVisitor.UnifyRule

org.apache.calcite.plan.SubstitutionVisitor.AbstractUnifyRule

Enclosing class:

SubstitutionVisitor

public abstract static class SubstitutionVisitor.AbstractUnifyRule
extends SubstitutionVisitor.UnifyRule

Abstract base class for implementing SubstitutionVisitor.UnifyRule.

Field Summary

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

queryOperand, slotCount, targetOperand

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractUnifyRule(SubstitutionVisitor.Operand queryOperand, SubstitutionVisitor.Operand targetOperand, int slotCount)

Method Summary

Modifier and Type	Method and Description
protected static SubstitutionVisitor.Operand	any(Class<? extends MutableRel> clazz) Creates an operand that doesn't check inputs.
protected boolean	isValid()
protected static SubstitutionVisitor.Operand	operand(Class<? extends MutableRel> clazz, SubstitutionVisitor.Operand... inputOperands) Creates an operand with given inputs.
protected static SubstitutionVisitor.Operand	query(int ordinal) Creates an operand that matches a relational expression in the query.
protected static SubstitutionVisitor.Operand	target(int ordinal) Creates an operand that matches a relational expression in the target.

Methods inherited from class org.apache.calcite.plan.SubstitutionVisitor.UnifyRule

apply, copy, match

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractUnifyRule

protected AbstractUnifyRule(SubstitutionVisitor.Operand queryOperand,
                            SubstitutionVisitor.Operand targetOperand,
                            int slotCount)

Method Detail

isValid

protected boolean isValid()

operand

protected static SubstitutionVisitor.Operand operand(Class<? extends MutableRel> clazz,
                                                     SubstitutionVisitor.Operand... inputOperands)

Creates an operand with given inputs.

any

protected static SubstitutionVisitor.Operand any(Class<? extends MutableRel> clazz)

Creates an operand that doesn't check inputs.

query

protected static SubstitutionVisitor.Operand query(int ordinal)

Creates an operand that matches a relational expression in the query.

target

protected static SubstitutionVisitor.Operand target(int ordinal)

Creates an operand that matches a relational expression in the target.