01: /*
02: * Copyright 2004-2007 the original author or authors.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
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.
15: */
16: package org.springframework.webflow.engine.builder.xml;
17:
18: import java.io.IOException;
19:
20: import javax.xml.parsers.ParserConfigurationException;
21:
22: import org.springframework.core.io.Resource;
23: import org.w3c.dom.Document;
24: import org.xml.sax.SAXException;
25:
26: /**
27: * A generic strategy interface encapsulating the logic to load an XML-based document.
28: *
29: * @author Keith Donald
30: */
31: public interface DocumentLoader {
32:
33: /**
34: * Load the XML-based document from the external resource.
35: * @param resource the document resource
36: * @return the loaded (parsed) document
37: * @throws IOException an exception occured accessing the resource input stream
38: * @throws ParserConfigurationException an exception occured building the document parser
39: * @throws SAXException a error occured during document parsing
40: */
41: public Document loadDocument(Resource resource) throws IOException,
42: ParserConfigurationException, SAXException;
43: }
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