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LabeledEnumResolver (Spring Framework API 2.0) - Spring Framework 2.0.5 API 文档英文版

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org.springframework.core.enums
Interface LabeledEnumResolver

All Known Implementing Classes:
AbstractCachingLabeledEnumResolver, StaticLabeledEnumResolver

public interface LabeledEnumResolver

Interface for looking up LabeledEnum instances.

Since:
1.2.2
Author:
Keith Donald, Juergen Hoeller

Method Summary
 LabeledEnum getLabeledEnumByCode(Class type, Comparable code)
          Resolve a single LabeledEnum by its identifying code.
 LabeledEnum getLabeledEnumByLabel(Class type, String label)
          Resolve a single LabeledEnum by its identifying code.
 Map getLabeledEnumMap(Class type)
          Return a map of enumerations of a particular type.
 Set getLabeledEnumSet(Class type)
          Return a set of enumerations of a particular type.
 

Method Detail

getLabeledEnumSet

Set getLabeledEnumSet(Class type)
                      throws IllegalArgumentException
Return a set of enumerations of a particular type. Each element in the set should be an instance of LabeledEnum.

Parameters:
type - the enum type
Returns:
a set of localized enumeration instances for the provided type
Throws:
IllegalArgumentException - if the type is not supported

getLabeledEnumMap

Map getLabeledEnumMap(Class type)
                      throws IllegalArgumentException
Return a map of enumerations of a particular type. Each element in the map should be a key/value pair, where the key is the enum code, and the value is the LabeledEnum instance.

Parameters:
type - the enum type
Returns:
a Map of localized enumeration instances, with enum code as key and LabeledEnum instance as value
Throws:
IllegalArgumentException - if the type is not supported

getLabeledEnumByCode

LabeledEnum getLabeledEnumByCode(Class type,
                                 Comparable code)
                                 throws IllegalArgumentException
Resolve a single LabeledEnum by its identifying code.

Parameters:
type - the enum type
code - the enum code
Returns:
the enum
Throws:
IllegalArgumentException - if the code did not map to a valid instance

getLabeledEnumByLabel

LabeledEnum getLabeledEnumByLabel(Class type,
                                  String label)
                                  throws IllegalArgumentException
Resolve a single LabeledEnum by its identifying code.

Parameters:
type - the enum type
label - the enum label
Returns:
the enum
Throws:
IllegalArgumentException - if the label did not map to a valid instance

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