Package org.apache.calcite.plan.volcano
Enum VolcanoPlannerPhase
- java.lang.Object
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- java.lang.Enum<VolcanoPlannerPhase>
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- org.apache.calcite.plan.volcano.VolcanoPlannerPhase
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Comparable<VolcanoPlannerPhase>
public enum VolcanoPlannerPhase extends java.lang.Enum<VolcanoPlannerPhase>
VolcanoPlannerPhase represents the phases of operation that theVolcanoPlanner
passes through during optimization of a tree ofRelNode
objects.
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Enum Constant Summary
Enum Constants Enum Constant Description CLEANUP
OPTIMIZE
PRE_PROCESS
PRE_PROCESS_MDR
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Constructor Summary
Constructors Modifier Constructor Description private
VolcanoPlannerPhase()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static VolcanoPlannerPhase
valueOf(java.lang.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 are declared.
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Enum Constant Detail
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PRE_PROCESS_MDR
public static final VolcanoPlannerPhase PRE_PROCESS_MDR
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PRE_PROCESS
public static final VolcanoPlannerPhase PRE_PROCESS
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OPTIMIZE
public static final VolcanoPlannerPhase OPTIMIZE
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CLEANUP
public static final VolcanoPlannerPhase CLEANUP
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Method Detail
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values
public static VolcanoPlannerPhase[] values()
Returns an array containing the constants of this enum type, in the order they are 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 are declared
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valueOf
public static VolcanoPlannerPhase valueOf(java.lang.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:
java.lang.IllegalArgumentException
- if this enum type has no constant with the specified namejava.lang.NullPointerException
- if the argument is null
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