- java.lang.Object
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- java.lang.Enum<NullOrderingType>
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- org.datanucleus.store.query.NullOrderingType
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- All Implemented Interfaces:
Serializable
,Comparable<NullOrderingType>
public enum NullOrderingType extends Enum<NullOrderingType>
Enum for how to handle null values when ordering a query based on a column.
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Enum Constant Summary
Enum Constants Enum Constant Description NULLS_FIRST
NULLS_LAST
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static NullOrderingType
valueOf(String name)
Returns the enum constant of this type with the specified name.static NullOrderingType[]
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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NULLS_FIRST
public static final NullOrderingType NULLS_FIRST
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NULLS_LAST
public static final NullOrderingType NULLS_LAST
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Method Detail
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values
public static NullOrderingType[] 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 (NullOrderingType c : NullOrderingType.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 NullOrderingType 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 nameNullPointerException
- if the argument is null
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