Package javax.persistence
Interface Cache
public interface Cache
Interface used to interact with the second-level cache.
If a cache is not in use, the methods of this interface have
no effect, except for
contains
, which returns false.- Since:
- Java Persistence 2.0
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Method Summary
Modifier and TypeMethodDescriptionboolean
Whether the cache contains data for the given entity.void
Remove the data for entities of the specified class (and its subclasses) from the cache.void
Remove the data for the given entity from the cache.void
evictAll()
Clear the cache.
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Method Details
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contains
Whether the cache contains data for the given entity.- Parameters:
cls
- entity classprimaryKey
- primary key- Returns:
- boolean indicating whether the entity is in the cache
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evict
Remove the data for the given entity from the cache.- Parameters:
cls
- entity classprimaryKey
- primary key
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evict
Remove the data for entities of the specified class (and its subclasses) from the cache.- Parameters:
cls
- entity class
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evictAll
void evictAll()Clear the cache.
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