Package javax.persistence
Enum SharedCacheMode
- java.lang.Object
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- java.lang.Enum<SharedCacheMode>
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- javax.persistence.SharedCacheMode
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Comparable<SharedCacheMode>
public enum SharedCacheMode extends java.lang.Enum<SharedCacheMode>
Specifies how the provider must use a second-level cache for the persistence unit. Corresponds to the value of thepersistence.xml
shared-cache-mode
element, and returned as the result ofPersistenceUnitInfo.getSharedCacheMode()
.- Since:
- 2.0
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Enum Constant Summary
Enum Constants Enum Constant Description ALL
All entities and entity-related state and data are cached.DISABLE_SELECTIVE
Caching is enabled for all entities except those for whichCacheable(false)
is specified.ENABLE_SELECTIVE
Caching is enabled for all entities forCacheable(true)
is specified.NONE
Caching is disabled for the persistence unit.UNSPECIFIED
Caching behavior is undefined: provider-specific defaults may apply.
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static SharedCacheMode
valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name.static SharedCacheMode[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
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Enum Constant Detail
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ALL
public static final SharedCacheMode ALL
All entities and entity-related state and data are cached.
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NONE
public static final SharedCacheMode NONE
Caching is disabled for the persistence unit.
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ENABLE_SELECTIVE
public static final SharedCacheMode ENABLE_SELECTIVE
Caching is enabled for all entities forCacheable(true)
is specified. All other entities are not cached.
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DISABLE_SELECTIVE
public static final SharedCacheMode DISABLE_SELECTIVE
Caching is enabled for all entities except those for whichCacheable(false)
is specified. Entities for whichCacheable(false)
is specified are not cached.
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UNSPECIFIED
public static final SharedCacheMode UNSPECIFIED
Caching behavior is undefined: provider-specific defaults may apply.
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Method Detail
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values
public static SharedCacheMode[] 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 (SharedCacheMode c : SharedCacheMode.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 SharedCacheMode valueOf(java.lang.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:
java.lang.IllegalArgumentException
- if this enum type has no constant with the specified namejava.lang.NullPointerException
- if the argument is null
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