javax.cache.annotation

Annotation Type CacheRemoveEntry

@Target(value={METHOD,TYPE})
@Retention(value=RUNTIME)
public @interface CacheRemoveEntry

When a method annotated with CacheRemoveEntry is invoked a GeneratedCacheKey will be generated and Cache.remove(Object) will be invoked on the specified cache.

The default behavior is to call Cache.remove(Object) after the annotated method is invoked, this behavior can be changed by setting afterInvocation() to false in which case Cache.remove(Object) will be called before the annotated method is invoked.

Example of removing a specific Domain object from the "domainCache". A GeneratedCacheKey will be generated from the String and int parameters and used to call Cache.remove(Object) after the deleteDomain method completes successfully.

 package my.app;
 

 public class DomainDao {
   @CacheRemoveEntry(cacheName="domainCache")
   public void deleteDomain(String domainId, int index) {
     ...
   }
 }
 

Exception Handling, only used if afterInvocation() is true.

1. If evictFor() and noEvictFor() are both empty then all exceptions prevent the remove
2. If evictFor() is specified and noEvictFor() is not specified then only exceptions which pass an instanceof check against the evictFor list result in a remove
3. If noEvictFor() is specified and evictFor() is not specified then all exceptions which do not pass an instanceof check against the noEvictFor result in a remove
4. If evictFor() and noEvictFor() are both specified then exceptions which pass an instanceof check against the evictFor list but do not pass an instanceof check against the noEvictFor list result in a remove

Since:

1.0

Author:

Eric Dalquist, Rick Hightower

See Also:

CacheKey

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
boolean	afterInvocation When Cache.remove(Object) should be called.
Class<? extends CacheKeyGenerator>	cacheKeyGenerator The CacheKeyGenerator to use to generate the GeneratedCacheKey for interacting with the specified Cache.
String	cacheName The name of the cache.
Class<? extends CacheResolverFactory>	cacheResolverFactory The CacheResolverFactory used to find the CacheResolver to use at runtime.
Class<? extends Throwable>[]	evictFor Defines zero (0) or more exception classes, which must be a subclass of Throwable, indicating which exception types must cause a cache evict.
Class<? extends Throwable>[]	noEvictFor Defines zero (0) or more exception Classes, which must be a subclass of Throwable, indicating which exception types must not cause a cache evict.

Element Detail

cacheName

public abstract String cacheName

The name of the cache.

If not specified defaults first to CacheDefaults.cacheName(), and if that is not set then to: package.name.ClassName.methodName(package.ParameterType,package.ParameterType)

Default:

""

afterInvocation

public abstract boolean afterInvocation

When Cache.remove(Object) should be called. If true it is called after the annotated method invocation completes successfully. If false it is called before the annotated method is invoked.

Defaults to true.

If true and the annotated method throws an exception the put will not be executed.

Default:

true

cacheResolverFactory

public abstract Class<? extends CacheResolverFactory> cacheResolverFactory

The CacheResolverFactory used to find the CacheResolver to use at runtime.

The default resolver pair will resolve the cache by name from the default CacheManager

Default:

javax.cache.annotation.CacheResolverFactory.class

cacheKeyGenerator

public abstract Class<? extends CacheKeyGenerator> cacheKeyGenerator

The CacheKeyGenerator to use to generate the GeneratedCacheKey for interacting with the specified Cache.

Defaults to a key generator that uses Arrays.deepHashCode(Object[]) and Arrays.deepEquals(Object[], Object[]) with the array returned by CacheKeyInvocationContext.getKeyParameters()

See Also:

CacheKey

Default:

javax.cache.annotation.CacheKeyGenerator.class

evictFor

public abstract Class<? extends Throwable>[] evictFor

Defines zero (0) or more exception classes, which must be a subclass of Throwable, indicating which exception types must cause a cache evict. Only used if afterInvocation() is true.

Default:

{}

noEvictFor

public abstract Class<? extends Throwable>[] noEvictFor

Defines zero (0) or more exception Classes, which must be a subclass of Throwable, indicating which exception types must not cause a cache evict. Only used if afterInvocation() is true.

Default:

{}