Package org.hibernate
Enum NullPrecedence
- java.lang.Object
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- java.lang.Enum<NullPrecedence>
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- org.hibernate.NullPrecedence
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Comparable<NullPrecedence>
public enum NullPrecedence extends java.lang.Enum<NullPrecedence>
Defines precedence of null values withinORDER BY
clause.
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static NullPrecedence
parse(java.lang.String name)
Interprets a string representation of a NullPrecedence, returningnull
by default.static NullPrecedence
parse(java.lang.String name, NullPrecedence defaultValue)
Interprets a string representation of a NullPrecedence, returning the specified default if not recognized.static NullPrecedence
valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name.static NullPrecedence[]
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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NONE
public static final NullPrecedence NONE
Null precedence not specified. Relies on the RDBMS implementation.
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FIRST
public static final NullPrecedence FIRST
Null values appear at the beginning of the sorted collection.
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LAST
public static final NullPrecedence LAST
Null values appear at the end of the sorted collection.
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Method Detail
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values
public static NullPrecedence[] 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 (NullPrecedence c : NullPrecedence.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 NullPrecedence 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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parse
public static NullPrecedence parse(java.lang.String name)
Interprets a string representation of a NullPrecedence, returningnull
by default. For alternative default handling, seeparse(String, NullPrecedence)
- Parameters:
name
- The String representation to interpret- Returns:
- The recognized NullPrecedence, or
null
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parse
public static NullPrecedence parse(java.lang.String name, NullPrecedence defaultValue)
Interprets a string representation of a NullPrecedence, returning the specified default if not recognized.- Parameters:
name
- The String representation to interpretdefaultValue
- The default value to use- Returns:
- The recognized NullPrecedence, or
defaultValue
.
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