Package org.springframework.cache.annotation

Class AnnotationCacheOperationSource

java.lang.Object

org.springframework.cache.interceptor.AbstractFallbackCacheOperationSource

org.springframework.cache.annotation.AnnotationCacheOperationSource

All Implemented Interfaces:

Serializable, CacheOperationSource

public class AnnotationCacheOperationSource
extends AbstractFallbackCacheOperationSource
implements Serializable

Implementation of the CacheOperationSource interface for working with caching metadata in annotation format.

This class reads Spring's Cacheable, CachePut and CacheEvict annotations and exposes corresponding caching operation definition to Spring's cache infrastructure. This class may also serve as base class for a custom CacheOperationSource.

Since:

3.1

Author:

Costin Leau, Juergen Hoeller, Stephane Nicoll

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static interface	AnnotationCacheOperationSource.CacheOperationProvider	Callback interface providing CacheOperation instance(s) based on a given CacheAnnotationParser.

Field Summary

Fields inherited from class org.springframework.cache.interceptor.AbstractFallbackCacheOperationSource

logger

Constructor Summary

Constructors

Constructor	Description
AnnotationCacheOperationSource()	Create a default AnnotationCacheOperationSource, supporting public methods that carry the Cacheable and CacheEvict annotations.
AnnotationCacheOperationSource(boolean publicMethodsOnly)	Create a default AnnotationCacheOperationSource, supporting public methods that carry the Cacheable and CacheEvict annotations.
AnnotationCacheOperationSource(Set<CacheAnnotationParser> annotationParsers)	Create a custom AnnotationCacheOperationSource.
AnnotationCacheOperationSource(CacheAnnotationParser annotationParser)	Create a custom AnnotationCacheOperationSource.
AnnotationCacheOperationSource(CacheAnnotationParser... annotationParsers)	Create a custom AnnotationCacheOperationSource.

Method Summary

Modifier and Type	Method	Description
protected boolean	allowPublicMethodsOnly()	By default, only public methods can be made cacheable.
protected Collection<CacheOperation>	determineCacheOperations(AnnotationCacheOperationSource.CacheOperationProvider provider)	Determine the cache operation(s) for the given AnnotationCacheOperationSource.CacheOperationProvider.
boolean	equals(Object other)
protected Collection<CacheOperation>	findCacheOperations(Class<?> clazz)	Subclasses need to implement this to return the caching attribute for the given class, if any.
protected Collection<CacheOperation>	findCacheOperations(Method method)	Subclasses need to implement this to return the caching attribute for the given method, if any.
int	hashCode()
boolean	isCandidateClass(Class<?> targetClass)	Determine whether the given class is a candidate for cache operations in the metadata format of this CacheOperationSource.

Methods inherited from class org.springframework.cache.interceptor.AbstractFallbackCacheOperationSource

getCacheKey, getCacheOperations

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

AnnotationCacheOperationSource

public AnnotationCacheOperationSource()

Create a default AnnotationCacheOperationSource, supporting public methods that carry the Cacheable and CacheEvict annotations.

AnnotationCacheOperationSource

public AnnotationCacheOperationSource(boolean publicMethodsOnly)

Create a default AnnotationCacheOperationSource, supporting public methods that carry the Cacheable and CacheEvict annotations.

Parameters:

publicMethodsOnly - whether to support only annotated public methods typically for use with proxy-based AOP), or protected/private methods as well (typically used with AspectJ class weaving)

AnnotationCacheOperationSource

public AnnotationCacheOperationSource(CacheAnnotationParser annotationParser)

Create a custom AnnotationCacheOperationSource.

Parameters:

annotationParser - the CacheAnnotationParser to use

AnnotationCacheOperationSource

public AnnotationCacheOperationSource(CacheAnnotationParser... annotationParsers)

Create a custom AnnotationCacheOperationSource.

Parameters:

annotationParsers - the CacheAnnotationParser to use

AnnotationCacheOperationSource

public AnnotationCacheOperationSource(Set<CacheAnnotationParser> annotationParsers)

Create a custom AnnotationCacheOperationSource.

Parameters:

annotationParsers - the CacheAnnotationParser to use

Method Details

isCandidateClass

public boolean isCandidateClass(Class<?> targetClass)

Description copied from interface: CacheOperationSource

Determine whether the given class is a candidate for cache operations in the metadata format of this CacheOperationSource.

If this method returns false, the methods on the given class will not get traversed for CacheOperationSource.getCacheOperations(java.lang.reflect.Method, java.lang.Class<?>) introspection. Returning false is therefore an optimization for non-affected classes, whereas true simply means that the class needs to get fully introspected for each method on the given class individually.

Specified by:

isCandidateClass in interface CacheOperationSource

Parameters:

targetClass - the class to introspect

Returns:

false if the class is known to have no cache operation metadata at class or method level; true otherwise. The default implementation returns true, leading to regular introspection.

findCacheOperations

@Nullable
protected Collection<CacheOperation> findCacheOperations(Class<?> clazz)

Description copied from class: AbstractFallbackCacheOperationSource

Subclasses need to implement this to return the caching attribute for the given class, if any.

Specified by:

findCacheOperations in class AbstractFallbackCacheOperationSource

Parameters:

clazz - the class to retrieve the attribute for

Returns:

all caching attribute associated with this class, or null if none

findCacheOperations

@Nullable
protected Collection<CacheOperation> findCacheOperations(Method method)

Description copied from class: AbstractFallbackCacheOperationSource

Subclasses need to implement this to return the caching attribute for the given method, if any.

Specified by:

findCacheOperations in class AbstractFallbackCacheOperationSource

Parameters:

method - the method to retrieve the attribute for

Returns:

all caching attribute associated with this method, or null if none

determineCacheOperations

@Nullable
protected Collection<CacheOperation> determineCacheOperations(AnnotationCacheOperationSource.CacheOperationProvider provider)

Determine the cache operation(s) for the given AnnotationCacheOperationSource.CacheOperationProvider.

This implementation delegates to configured CacheAnnotationParsers for parsing known annotations into Spring's metadata attribute class.

Can be overridden to support custom annotations that carry caching metadata.

Parameters:

provider - the cache operation provider to use

Returns:

the configured caching operations, or null if none found

allowPublicMethodsOnly

protected boolean allowPublicMethodsOnly()

By default, only public methods can be made cacheable.

Overrides:

allowPublicMethodsOnly in class AbstractFallbackCacheOperationSource

equals

public boolean equals(@Nullable
 Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object