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.jetspeed.aggregator;
18:
19: import java.io.IOException;
20:
21: import org.apache.jetspeed.exception.JetspeedException;
22: import org.apache.jetspeed.request.RequestContext;
23:
24: /**
25: * Basic aggregation interface
26: *
27: * @author <a href="mailto:taylor@apache.org">David Sean Taylor</a>
28: * @version $Id: Aggregator.java 516448 2007-03-09 16:25:47Z ate $
29: */
30: public interface Aggregator {
31: /**
32: * Builds the portlet set defined in the context into a portlet tree.
33: *
34: * @return Unique Portlet Entity ID
35: */
36: public void build(RequestContext context) throws JetspeedException,
37: IOException;
38:
39: }
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