Package org.apache.struts2.inject.util
Enum Class ReferenceType
- All Implemented Interfaces:
- Serializable,- Comparable<ReferenceType>,- Constable
Reference type. Used to specify what type of reference to keep to a
 referent.
- Author:
- crazybob@google.com (Bob Lee)
- See Also:
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Nested Class SummaryNested classes/interfaces inherited from class java.lang.EnumEnum.EnumDesc<E extends Enum<E>>
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Enum Constant SummaryEnum ConstantsEnum ConstantDescriptionSimilar to weak references except the garbage collector doesn't actually reclaim the referent.Referent reclaimed in an LRU fashion when the VM runs low on memory and no strong references exist.Prevents referent from being reclaimed by the garbage collector.Referent reclaimed when no strong or soft references exist.
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Method SummaryModifier and TypeMethodDescriptionstatic ReferenceTypeReturns the enum constant of this class with the specified name.static ReferenceType[]values()Returns an array containing the constants of this enum class, in the order they are declared.
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Enum Constant Details- 
STRONGPrevents referent from being reclaimed by the garbage collector.
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SOFTReferent reclaimed in an LRU fashion when the VM runs low on memory and no strong references exist.- See Also:
 
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WEAKReferent reclaimed when no strong or soft references exist.- See Also:
 
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PHANTOMSimilar to weak references except the garbage collector doesn't actually reclaim the referent. More flexible alternative to finalization.- See Also:
 
 
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Method Details- 
valuesReturns 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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valueOfReturns 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 name
- NullPointerException- if the argument is null
 
 
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