org.eigenbase.relopt.volcano
Enum VolcanoPlannerPhase

java.lang.Object
  java.lang.Enum<VolcanoPlannerPhase>
      org.eigenbase.relopt.volcano.VolcanoPlannerPhase

All Implemented Interfaces:

Serializable, Comparable<VolcanoPlannerPhase>

public enum VolcanoPlannerPhase
extends Enum<VolcanoPlannerPhase>

VolcanoPlannerPhase represents the phases of operation that the VolcanoPlanner passes through during optimization of a tree of RelNode objects.

Author:

stephan

Enum Constant Summary

CLEANUP

OPTIMIZE

PRE_PROCESS

PRE_PROCESS_MDR

Method Summary

static VolcanoPlannerPhase	valueOf(String name) Returns the enum constant of this type with the specified name.
static VolcanoPlannerPhase[]	values() Returns an array containing the constants of this enum type, in the order they're declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

PRE_PROCESS_MDR

public static final VolcanoPlannerPhase PRE_PROCESS_MDR

PRE_PROCESS

public static final VolcanoPlannerPhase PRE_PROCESS

OPTIMIZE

public static final VolcanoPlannerPhase OPTIMIZE

CLEANUP

public static final VolcanoPlannerPhase CLEANUP

Method Detail

values

public static final VolcanoPlannerPhase[] values()

Returns an array containing the constants of this enum type, in the order they're declared. This method may be used to iterate over the constants as follows:

for(VolcanoPlannerPhase c : VolcanoPlannerPhase.values())
        System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they're declared

valueOf

public static VolcanoPlannerPhase valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name