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: package org.apache.cocoon.reading;
18:
19: import org.apache.cocoon.ProcessingException;
20: import org.apache.cocoon.sitemap.SitemapModelComponent;
21: import org.apache.cocoon.sitemap.SitemapOutputComponent;
22: import org.xml.sax.SAXException;
23:
24: import java.io.IOException;
25:
26: /**
27: * A reader can be used to generate binary output for a request.
28: *
29: * @author <a href="mailto:Giacomo.Pati@pwr.ch">Giacomo Pati</a>
30: * @version CVS $Id: Reader.java 433543 2006-08-22 06:22:54Z crossley $
31: */
32: public interface Reader extends SitemapModelComponent,
33: SitemapOutputComponent {
34:
35: String ROLE = Reader.class.getName();
36:
37: /**
38: * Generate the response.
39: */
40: void generate() throws IOException, SAXException,
41: ProcessingException;
42:
43: /**
44: * @return the time the read source was last modified or 0 if it is not
45: * possible to detect
46: */
47: long getLastModified();
48: }
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