io.micronaut.cache.CacheErrorHandler Maven / Gradle / Ivy
/*
* Copyright 2017-2019 original authors
*
* 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 io.micronaut.cache;
/**
* An interface for handling cache errors.
*
* @author Graeme Rocher
* @since 1.0
*/
public interface CacheErrorHandler {
/**
* Handles a cache {@link io.micronaut.cache.annotation.CacheInvalidate} error. Defaults to simply rethrowing the error.
* By returning false cache invalidate errors will instead to be swallowed and ignored.
*
* @param cache The cache
* @param key The key
* @param e The error
* @return Whether the exception should be swallowed or rethrown. A value of true will rethrow he exception.
*/
default boolean handleInvalidateError(Cache cache, Object key, RuntimeException e) {
return true;
}
/**
* Handles a cache {@link io.micronaut.cache.annotation.CacheInvalidate} error. Defaults to simply rethrowing the error.
* By returning false cache invalidate errors will instead to be swallowed and ignored.
*
* @param cache The cache
* @param e The error
* @return Whether the exception should be swallowed or rethrown. A value of true will rethrow he exception.
*/
default boolean handleInvalidateError(Cache cache, RuntimeException e) {
return true;
}
/**
* Handles a cache {@link io.micronaut.cache.annotation.CachePut} error. Defaults to simply rethrowing the error.
* By returning false cache write errors will instead to be swallowed and ignored.
*
* @param cache The cache
* @param key The key name
* @param result The result
* @param e The error
* @return Whether the exception should be swallowed or rethrown. A value of true will rethrow he exception.
*/
default boolean handlePutError(Cache cache, Object key, Object result, RuntimeException e) {
return true;
}
/**
* Handles an error loading a value from the cache via {@link io.micronaut.cache.annotation.Cacheable}. Note that
* by returning false the behaviour can be customized such that cache related exceptions are ignored and
* the original method invoked.
*
* @param cache The cache
* @param key The key
* @param e The error
* @return Whether the exception should be swallowed or rethrown. A value of true will rethrow he exception.
*/
default boolean handleLoadError(Cache cache, Object key, RuntimeException e) {
return true;
}
}