Enum PseudoColumnUsage
- java.lang.Object
-
- java.lang.Enum<PseudoColumnUsage>
-
- java.sql.PseudoColumnUsage
- All Implemented Interfaces:
-
Serializable
,Comparable<PseudoColumnUsage>
public enum PseudoColumnUsage extends Enum<PseudoColumnUsage>
Enumeration for pseudo/hidden column usage.
- Since:
- 1.7
- See Also:
DatabaseMetaData.getPseudoColumns(java.lang.String, java.lang.String, java.lang.String, java.lang.String)
Enum Constant Summary
Enum Constant | Description |
---|---|
NO_USAGE_RESTRICTIONS | There are no restrictions on the usage of the pseudo/hidden columns. |
SELECT_LIST_ONLY | The pseudo/hidden column may only be used in a SELECT list. |
USAGE_UNKNOWN | The usage of the pseudo/hidden column cannot be determined. |
WHERE_CLAUSE_ONLY | The pseudo/hidden column may only be used in a WHERE clause. |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
static PseudoColumnUsage | valueOf(String name) | Returns the enum constant of this type with the specified name. |
static PseudoColumnUsage[] | values() | Returns an array containing the constants of this enum type, in the order they are declared. |
Methods declared in class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf
Methods declared in class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait
Enum Constant Detail
SELECT_LIST_ONLY
public static final PseudoColumnUsage SELECT_LIST_ONLY
The pseudo/hidden column may only be used in a SELECT list.
WHERE_CLAUSE_ONLY
public static final PseudoColumnUsage WHERE_CLAUSE_ONLY
The pseudo/hidden column may only be used in a WHERE clause.
NO_USAGE_RESTRICTIONS
public static final PseudoColumnUsage NO_USAGE_RESTRICTIONS
There are no restrictions on the usage of the pseudo/hidden columns.
USAGE_UNKNOWN
public static final PseudoColumnUsage USAGE_UNKNOWN
The usage of the pseudo/hidden column cannot be determined.
Method Detail
values
public static PseudoColumnUsage[] 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 (PseudoColumnUsage c : PseudoColumnUsage.values()) System.out.println(c);
- Returns:
- an array containing the constants of this enum type, in the order they are declared
valueOf
public static PseudoColumnUsage 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 -
NullPointerException
- if the argument is null