public abstract class AbstractFallbackCacheOperationSource extends Object implements CacheOperationSource
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.
| Modifier and Type | Field and Description |
|---|---|
protected Log |
logger
Logger available to subclasses.
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| Constructor and Description |
|---|
AbstractFallbackCacheOperationSource() |
| Modifier and Type | Method and Description |
|---|---|
protected boolean |
allowPublicMethodsOnly()
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.
|
Collection<CacheOperation> |
getCacheOperations(Method method,
Class<?> targetClass)
Determine the caching attribute for this method invocation.
|
protected final Log logger
As this base class is not marked Serializable, the logger will be recreated after serialization - provided that the concrete subclass is Serializable.
public AbstractFallbackCacheOperationSource()
@Nullable public Collection<CacheOperation> getCacheOperations(Method method, @Nullable Class<?> targetClass)
Defaults to the class's caching attribute if no method attribute is found.
getCacheOperations in interface CacheOperationSourcemethod - the method for the current invocation (never null)targetClass - the target class for this invocation (may be null)CacheOperation for this method, or null if the method
is not cacheableprotected Object getCacheKey(Method method, @Nullable Class<?> targetClass)
Must not produce same key for overloaded methods. Must produce same key for different instances of the same method.
method - the method (never null)targetClass - the target class (may be null)null)@Nullable protected abstract Collection<CacheOperation> findCacheOperations(Class<?> clazz)
clazz - the class to retrieve the attribute fornull if none@Nullable protected abstract Collection<CacheOperation> findCacheOperations(Method method)
method - the method to retrieve the attribute fornull if noneprotected boolean allowPublicMethodsOnly()
The default implementation returns false.