Enum Direction
- java.lang.Object
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- java.lang.Enum<Direction>
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- de.digitalcollections.model.list.sorting.Direction
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- All Implemented Interfaces:
Serializable
,Comparable<Direction>
public enum Direction extends Enum<Direction>
Enumeration for sort directions. See Spring Data Commons, but more flat design and independent of Spring libraries.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static Direction
fromString(String value)
static Direction
fromStringOrNull(String value)
boolean
isAscending()
boolean
isDescending()
static Direction
valueOf(String name)
Returns the enum constant of this type with the specified name.static Direction[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
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Method Detail
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values
public static Direction[] 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 (Direction c : Direction.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 Direction 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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isAscending
public boolean isAscending()
- Returns:
- true if direction is ascending
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isDescending
public boolean isDescending()
- Returns:
- true if direction is ascending
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fromString
public static Direction fromString(String value)
- Parameters:
value
- given direction value- Returns:
- the direction enumeration
- Throws:
IllegalArgumentException
- in case the given value cannot be parsed into an enum value.
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