org.springframework.cache.interceptor

类 AbstractFallbackCacheOperationSource

java.lang.Object

org.springframework.cache.interceptor.AbstractFallbackCacheOperationSource

所有已实现的接口:

CacheOperationSource

直接已知子类:

AnnotationCacheOperationSource

public abstract class AbstractFallbackCacheOperationSource
extends Object
implements CacheOperationSource

Abstract implementation of 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.

从以下版本开始:

3.1

作者:

Costin Leau, Juergen Hoeller

字段概要

字段

限定符和类型	字段和说明
protected Log	logger Logger available to subclasses.

构造器概要

构造器

构造器和说明
AbstractFallbackCacheOperationSource()

方法概要

限定符和类型	方法和说明
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.

从类继承的方法 java.lang.Object

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

字段详细资料

logger

protected final Log 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.

构造器详细资料

AbstractFallbackCacheOperationSource

public AbstractFallbackCacheOperationSource()

方法详细资料

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.

指定者:

getCacheOperations 在接口中 CacheOperationSource

参数:

method - the method for the current invocation (never null)

targetClass - the target class for this invocation (may be null)

返回:

CacheOperation for this method, or null if the method is not cacheable

getCacheKey

protected Object getCacheKey(Method method,
                             @Nullable
                             Class<?> targetClass)

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.

参数:

method - the method (never null)

targetClass - the target class (may be null)

返回:

the cache key (never null)

findCacheOperations

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

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

参数:

clazz - the class to retrieve the attribute for

返回:

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

findCacheOperations

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

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

参数:

method - the method to retrieve the attribute for

返回:

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

allowPublicMethodsOnly

protected boolean allowPublicMethodsOnly()

Should only public methods be allowed to have caching semantics?

The default implementation returns false.