net.sf.ehcache.exceptionhandler.CacheExceptionHandler Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of ehcache-core Show documentation
Show all versions of ehcache-core Show documentation
Internal ehcache-core module. This artifact is not meant to be used directly
/**
* Copyright Terracotta, Inc.
*
* 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 net.sf.ehcache.exceptionhandler;
import net.sf.ehcache.Ehcache;
/**
* A handler which may be registered with an Ehcache, to handle exceptions on Cache operations.
*
* Handlers may be registered at configuration time in ehcache.xml, using a CacheExceptionHandlerFactory, or
* set at runtime (a strategy).
*
* If an exception handler is registered, the default behaviour of throwing the exception will not occur. The handler
* method onException
will be called. Of course, if the handler decides to throw the exception, it will
* propagate up through the call stack. If the handler does not, it won't.
*
* Some common Exceptions thrown, and which therefore should be considered when implementing this class are listed below:
*
* - {@link IllegalStateException} if the cache is not {@link net.sf.ehcache.Status#STATUS_ALIVE}
*
- {@link IllegalArgumentException} if an attempt is made to put a null element into a cache
*
- {@link net.sf.ehcache.distribution.RemoteCacheException} if an issue occurs in remote synchronous replication
*
-
*
-
*
*
* @author Greg Luck
* @version $Id: CacheExceptionHandler.java 5594 2012-05-07 16:04:31Z cdennis $
*/
public interface CacheExceptionHandler {
/**
* Called if an Exception occurs in a Cache method. This method is not called
* if an Error
occurs.
*
* @param ehcache the cache in which the Exception occurred
* @param key the key used in the operation, or null if the operation does not use a key or the key was null
* @param exception the Exception caught.
*/
void onException(Ehcache ehcache, Object key, Exception exception);
}