org.apache.xmlgraphics.image.loader.cache.ImageCacheListener Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
/* $Id: ImageCacheListener.java 750418 2009-03-05 11:03:54Z vhennebert $ */
package org.apache.xmlgraphics.image.loader.cache;
import java.util.EventListener;
/**
* This interface can be implemented by classes which want to know what's going on inside the
* image cache.
*/
public interface ImageCacheListener extends EventListener {
/**
* An URi previously identified as invalid was requested again
* @param uri the invalid URI
*/
void invalidHit(String uri);
/**
* An ImageInfo was found in the cache
* @param uri the image's URI
*/
void cacheHitImageInfo(String uri);
/**
* An ImageInfo was not in the cache
* @param uri the image's URI
*/
void cacheMissImageInfo(String uri);
/**
* An Image was found in the cache
* @param key the image key
*/
void cacheHitImage(ImageKey key);
/**
* An Image was not in the cache
* @param key the image key
*/
void cacheMissImage(ImageKey key);
}