javax.cache.annotation.CachePut Maven / Gradle / Ivy
/**
* Copyright 2011-2016 Terracotta, Inc.
* Copyright 2011-2016 Oracle America Incorporated
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package javax.cache.annotation;
import javax.cache.Cache;
import javax.cache.CacheManager;
import javax.enterprise.util.Nonbinding;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import java.util.Arrays;
/**
* When a method annotated with {@link CachePut} is invoked a {@link
* GeneratedCacheKey} will be generated and {@link Cache#put(Object,
* Object)} will be invoked on the specified cache storing the value marked with
* {@link CacheValue}.
*
* The default behavior is to call {@link Cache#put(Object, Object)}
* after the annotated method is invoked, this behavior can be changed by setting
* {@link #afterInvocation()} to false in which case
* {@link Cache#put(Object, Object)} will be called before the annotated method is
* invoked.
*
* Example of caching the Domain object with a key generated from the String and
* int parameters. The {@link CacheValue} annotation is used to designate which
* parameter should be stored in the "domainDao" cache.
*
* package my.app;
*
* public class DomainDao {
* @CachePut(cacheName="domainCache")
* public void updateDomain(String domainId, int index, @CacheValue Domain
* domain) {
* ...
* }
* }
*
*
* Exception Handling, only used if {@link #afterInvocation()} is true.
*
* - If {@link #cacheFor()} and {@link #noCacheFor()} are both empty then all
* exceptions prevent the put
* - If {@link #cacheFor()} is specified and {@link #noCacheFor()} is not
* specified then only exceptions that pass an instanceof check against the
* cacheFor list result in a put
* - If {@link #noCacheFor()} is specified and {@link #cacheFor()} is not
* specified then all exceptions that do not pass an instanceof check against the
* noCacheFor result in a put
* - If {@link #cacheFor()} and {@link #noCacheFor()} are both specified then
* exceptions that pass an instanceof check against the cacheFor list but do not
* pass an instanceof check against the noCacheFor list result in a put
*
*
* @author Eric Dalquist
* @author Rick Hightower
* @see CacheValue
* @see CacheKey
* @since 1.0
*/
@Target({ElementType.METHOD, ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
public @interface CachePut {
/**
* The name of the cache.
*
* If not specified defaults first to {@link CacheDefaults#cacheName()} and if
* that is not set it defaults to:
* package.name.ClassName.methodName(package.ParameterType,package.ParameterType)
*/
@Nonbinding String cacheName() default "";
/**
* When {@link Cache#put(Object, 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 rules governing
* {@link #cacheFor()} and {@link #noCacheFor()} will be followed.
*/
@Nonbinding boolean afterInvocation() default true;
/**
* The {@link CacheResolverFactory} used to find the {@link CacheResolver} to
* use at runtime.
*
* The default resolver pair will resolve the cache by name from the default
* {@link CacheManager}
*/
@Nonbinding Class cacheResolverFactory()
default CacheResolverFactory.class;
/**
* The {@link CacheKeyGenerator} to use to generate the {@link
* GeneratedCacheKey} for interacting with the specified Cache.
*
* Defaults to a key generator that uses {@link Arrays#deepHashCode(Object[])}
* and {@link Arrays#deepEquals(Object[], Object[])} with the array
* returned by {@link CacheKeyInvocationContext#getKeyParameters()}
*
* @see CacheKey
*/
@Nonbinding Class cacheKeyGenerator()
default CacheKeyGenerator.class;
/**
* Defines zero (0) or more exception {@link Class classes}, that must be a
* subclass of {@link Throwable}, indicating the exception types that must
* cause the parameter to be cached. Only used if {@link #afterInvocation()} is
* true.
*/
@Nonbinding Class[] cacheFor() default {};
/**
* Defines zero (0) or more exception {@link Class Classes}, which must be a
* subclass of {@link Throwable}, indicating which exception types must
* not cause the parameter to be cached. Only used if
* {@link #afterInvocation()} is true.
*/
@Nonbinding Class[] noCacheFor() default {};
}