Class AbstractFallbackCacheOperationSource
- All Implemented Interfaces:
CacheOperationSource
- Direct Known Subclasses:
AnnotationCacheOperationSource
CacheOperation
that caches attributes
for methods and implements a fallback policy: 1. specific target method;
2. target class; 3. declaring method; 4. declaring class/interface.
Defaults to using the target class's caching attribute if none is associated with the target method. Any caching attribute associated with the target method completely overrides a class caching attribute. If none found on the target class, the interface that the invoked method has been called through (in case of a JDK proxy) will be checked.
This implementation caches attributes by method after they are first used. If it is ever desirable to allow dynamic changing of cacheable attributes (which is very unlikely), caching could be made configurable.
- Since:
- 3.1
- Author:
- Costin Leau, Juergen Hoeller
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Field Summary
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionprotected boolean
Should only public methods be allowed to have caching semantics?protected abstract Collection<CacheOperation>
findCacheOperations
(Class<?> clazz) Subclasses need to implement this to return the caching attribute for the given class, if any.protected abstract Collection<CacheOperation>
findCacheOperations
(Method method) Subclasses need to implement this to return the caching attribute for the given method, if any.protected Object
getCacheKey
(Method method, Class<?> targetClass) Determine a cache key for the given method and target class.getCacheOperations
(Method method, Class<?> targetClass) Determine the caching attribute for this method invocation.Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface org.springframework.cache.interceptor.CacheOperationSource
isCandidateClass
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Field Details
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logger
Logger available to subclasses.As this base class is not marked Serializable, the logger will be recreated after serialization - provided that the concrete subclass is Serializable.
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Constructor Details
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AbstractFallbackCacheOperationSource
public AbstractFallbackCacheOperationSource()
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Method Details
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getCacheOperations
@Nullable public Collection<CacheOperation> getCacheOperations(Method method, @Nullable Class<?> targetClass) Determine the caching attribute for this method invocation.Defaults to the class's caching attribute if no method attribute is found.
- Specified by:
getCacheOperations
in interfaceCacheOperationSource
- Parameters:
method
- the method for the current invocation (nevernull
)targetClass
- the target class for this invocation (may benull
)- Returns:
CacheOperation
for this method, ornull
if the method is not cacheable
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getCacheKey
Determine a cache key for the given method and target class.Must not produce same key for overloaded methods. Must produce same key for different instances of the same method.
- Parameters:
method
- the method (nevernull
)targetClass
- the target class (may benull
)- Returns:
- the cache key (never
null
)
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findCacheOperations
Subclasses need to implement this to return the caching attribute for the given class, if any.- Parameters:
clazz
- the class to retrieve the attribute for- Returns:
- all caching attribute associated with this class, or
null
if none
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findCacheOperations
Subclasses need to implement this to return the caching attribute for the given method, if any.- Parameters:
method
- the method to retrieve the attribute for- Returns:
- all caching attribute associated with this method, or
null
if none
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allowPublicMethodsOnly
protected boolean allowPublicMethodsOnly()Should only public methods be allowed to have caching semantics?The default implementation returns
false
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