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.components.treeprocessor;
18:
19: import org.apache.avalon.framework.thread.ThreadSafe;
20:
21: import org.apache.cocoon.environment.Environment;
22: import org.apache.cocoon.util.location.Locatable;
23: import org.apache.cocoon.util.location.Location;
24:
25: /**
26: *
27: * @author <a href="mailto:sylvain@apache.org">Sylvain Wallez</a>
28: * @version CVS $Id: ProcessingNode.java 433543 2006-08-22 06:22:54Z crossley $
29: */
30:
31: public interface ProcessingNode extends ThreadSafe, Locatable {
32:
33: /**
34: * The key of the <code>SourceResolver</code> in the object model.
35: */
36: String OBJECT_SOURCE_RESOLVER = "source-resolver";
37:
38: /**
39: * Process environment.
40: */
41: boolean invoke(Environment env, InvokeContext context)
42: throws Exception;
43:
44: /**
45: * Get the location of this node.
46: */
47: Location getLocation();
48: }
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