01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: *
17: */
18:
19: package org.apache.lenya.ac.cache;
20:
21: import org.apache.avalon.framework.component.Component;
22:
23: /**
24: * Source cache component.
25: * @version $Id: SourceCache.java 473861 2006-11-12 03:51:14Z gregor $
26: */
27: public interface SourceCache extends Component {
28:
29: /**
30: * Avalon role of the SourceCache interface.
31: */
32: String ROLE = SourceCache.class.getName();
33:
34: /**
35: * Returns a cached object or builds a new object when the cached
36: * object does not exist or is not up to date.
37: * @param sourceUri The URI to build the source from.
38: * @param builder The builder to create a new object if needed.
39: * @return An object.
40: * @throws CachingException when something went wrong.
41: */
42: Object get(String sourceUri, InputStreamBuilder builder)
43: throws CachingException;
44:
45: }
|