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Java > Open Source Codes > com > sun > syndication > fetcher > impl > FeedFetcherCache


1 /*
2  * Copyright 2004 Sun Microsystems, Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *
16  */
17 package com.sun.syndication.fetcher.impl;
18
19 import java.net.URL JavaDoc;
20
21 /**
22  * <p>An interface to allow caching of feeds. Implementing this allows the
23  * {@link com.sun.syndication.fetcher.io.HttpURLFeedFetcher} class to
24  * enable conditional gets</p>
25  *
26  * @author Nick Lothian
27  *
28  */
29 public interface FeedFetcherCache {
30     /**
31      * Get a SyndFeedInfo object from the cache.
32      *
33      * @param feedUrl The url of the feed
34      * @return A SyndFeedInfo or null if it is not in the cache
35      */
36     public SyndFeedInfo getFeedInfo(URL JavaDoc feedUrl);
37     
38     /**
39      * Add a SyndFeedInfo object to the cache
40      *
41      * @param feedUrl The url of the feed
42      * @param syndFeedInfo A SyndFeedInfo for the feed
43      */
44     public void setFeedInfo(URL JavaDoc feedUrl, SyndFeedInfo syndFeedInfo);
45 }
46
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