Package org.apache.calcite.plan.volcano

Class VolcanoPlanner.DeferringRuleCall

java.lang.Object

org.apache.calcite.plan.RelOptRuleCall

org.apache.calcite.plan.volcano.VolcanoRuleCall

org.apache.calcite.plan.volcano.VolcanoPlanner.DeferringRuleCall

Enclosing class:

VolcanoPlanner

private static class VolcanoPlanner.DeferringRuleCall
extends VolcanoRuleCall

A rule call which defers its actions. Whereas RelOptRuleCall invokes the rule when it finds a match, a DeferringRuleCall creates a VolcanoRuleMatch which can be invoked later.

Field Summary

Fields inherited from class org.apache.calcite.plan.volcano.VolcanoRuleCall

volcanoPlanner

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

id, LOGGER, nodeInputs, operand0, rels, rule

Constructor Summary

Constructors

Constructor	Description
DeferringRuleCall(VolcanoPlanner planner, RelOptRuleOperand operand)

Method Summary

Modifier and Type	Method	Description
protected void	onMatch()	Rather than invoking the rule (as the base method does), creates a VolcanoRuleMatch which can be invoked later.

Methods inherited from class org.apache.calcite.plan.volcano.VolcanoRuleCall

match, transformTo

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

builder, getChildRels, getMetadataQuery, getOperand0, getParents, getPlanner, getRelList, getRels, getRule, rel, setChildRels, transformTo

Methods inherited from class java.lang.Object

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

Constructor Detail

DeferringRuleCall

DeferringRuleCall(VolcanoPlanner planner,
                  RelOptRuleOperand operand)

Method Detail

onMatch

protected void onMatch()

Rather than invoking the rule (as the base method does), creates a VolcanoRuleMatch which can be invoked later.

Overrides:

onMatch in class VolcanoRuleCall