- All Implemented Interfaces:
Serializable
,Comparable<PseudoColumnUsage>
,Constable
Enumeration for pseudo/hidden column usage.
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Nested Class Summary
Nested classes/interfaces declared in class java.lang.Enum
Enum.EnumDesc<E extends Enum<E>>
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Enum Constant Summary
Enum ConstantDescriptionThere are no restrictions on the usage of the pseudo/hidden columns.The pseudo/hidden column may only be used in a SELECT list.The usage of the pseudo/hidden column cannot be determined.The pseudo/hidden column may only be used in a WHERE clause. -
Method Summary
Modifier and TypeMethodDescriptionstatic PseudoColumnUsage
Returns the enum constant of this class with the specified name.static PseudoColumnUsage[]
values()
Returns an array containing the constants of this enum class, in the order they are declared.
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Enum Constant Details
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SELECT_LIST_ONLY
The pseudo/hidden column may only be used in a SELECT list. -
WHERE_CLAUSE_ONLY
The pseudo/hidden column may only be used in a WHERE clause. -
NO_USAGE_RESTRICTIONS
There are no restrictions on the usage of the pseudo/hidden columns. -
USAGE_UNKNOWN
The usage of the pseudo/hidden column cannot be determined.
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Method Details
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values
Returns an array containing the constants of this enum class, in the order they are declared.- Returns:
- an array containing the constants of this enum class, in the order they are declared
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valueOf
Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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 class has no constant with the specified nameNullPointerException
- if the argument is null
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