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git.argeo.org Git - gpl/argeo-slc.git/blob - org.argeo.slc.repo/src/org/argeo/slc/repo/NodeIndexer.java
2 * Copyright (C) 2007-2012 Argeo GmbH
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
16 package org
.argeo
.slc
.repo
;
18 import javax
.jcr
.Node
;
19 import javax
.jcr
.observation
.EventListener
;
22 * Adds metadata to an existing node, ideally via observation after it has been
23 * added. There is a similar concept in ModeShape with which this abstraction
24 * may be merged in the future.
26 public interface NodeIndexer
{
28 * Whether the node at this path will be supported. This is typically use in
29 * an {@link EventListener} before the node is loaded, and would apply on
30 * information contained in the path / file name: file extension, base path,
31 * etc. If the node needs to be loaded, the recommended approach is to
32 * return <code>true</code> here and wait for index to be called, possibly
33 * returning without processing if the node should not be indexed. While
34 * not strictly a requirement, this avoids to open sessions in the indexer,
35 * centralizing such tasks in the caller.
37 public Boolean
support(String path
);
40 * Adds the metadata. This is the responsibility of the caller to save the
43 public void index(Node node
);