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org.springframework.cache.support
Class NullValue
- java.lang.Object
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- org.springframework.cache.support.NullValue
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- All Implemented Interfaces:
- java.io.Serializable
public final class NullValue extends java.lang.Object implements java.io.SerializableSimple serializable class that serves as anullreplacement for cache stores which otherwise do not supportnullvalues.- Since:
- 4.2.2
- Author:
- Juergen Hoeller
- See Also:
AbstractValueAdaptingCache, Serialized Form
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Field Summary
Fields Modifier and Type Field and Description static java.lang.ObjectINSTANCEThe canonical representation of anullreplacement, as used by the default implementation ofAbstractValueAdaptingCache.toStoreValue(java.lang.Object)/AbstractValueAdaptingCache.fromStoreValue(java.lang.Object).
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method and Description booleanequals(java.lang.Object obj)inthashCode()java.lang.StringtoString()
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Field Detail
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INSTANCE
public static final java.lang.Object INSTANCE
The canonical representation of anullreplacement, as used by the default implementation ofAbstractValueAdaptingCache.toStoreValue(java.lang.Object)/AbstractValueAdaptingCache.fromStoreValue(java.lang.Object).- Since:
- 4.3.10
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Method Detail
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equals
public boolean equals(@Nullable java.lang.Object obj)
- Overrides:
equalsin classjava.lang.Object
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hashCode
public int hashCode()
- Overrides:
hashCodein classjava.lang.Object
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toString
public java.lang.String toString()
- Overrides:
toStringin classjava.lang.Object
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