Package org.apache.calcite.plan.hep

Class HepInstruction

java.lang.Object

org.apache.calcite.plan.hep.HepInstruction

Direct Known Subclasses:

HepInstruction.BeginGroup, HepInstruction.CommonRelSubExprRules, HepInstruction.ConverterRules, HepInstruction.EndGroup, HepInstruction.MatchLimit, HepInstruction.MatchOrder, HepInstruction.RuleClass, HepInstruction.RuleCollection, HepInstruction.RuleInstance, HepInstruction.Subprogram

abstract class HepInstruction
extends java.lang.Object

HepInstruction represents one instruction in a HepProgram. The actual instruction set is defined here via inner classes; if these grow too big, they should be moved out to top-level classes.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	HepInstruction.BeginGroup	Instruction that begins a group.
(package private) static class	HepInstruction.CommonRelSubExprRules	Instruction that finds common relational sub-expressions.
(package private) static class	HepInstruction.ConverterRules	Instruction that executes converter rules.
(package private) static class	HepInstruction.EndGroup	Instruction that ends a group.
(package private) static class	HepInstruction.MatchLimit	Instruction that sets match limit.
(package private) static class	HepInstruction.MatchOrder	Instruction that sets match order.
(package private) static class	HepInstruction.RuleClass<R extends RelOptRule>	Instruction that executes all rules of a given class.
(package private) static class	HepInstruction.RuleCollection	Instruction that executes all rules in a given collection.
(package private) static class	HepInstruction.RuleInstance	Instruction that executes a given rule.
(package private) static class	HepInstruction.Subprogram	Instruction that executes a sub-program.

Constructor Summary

Constructors

Constructor	Description
HepInstruction()

Method Summary

Modifier and Type	Method	Description
(package private) abstract void	execute(HepPlanner planner)
(package private) void	initialize(boolean clearCache)

Methods inherited from class java.lang.Object

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

Constructor Detail

HepInstruction

HepInstruction()

Method Detail

initialize

void initialize(boolean clearCache)

execute

abstract void execute(HepPlanner planner)