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Java > Open Source Codes > org > springframework > scripting > ScriptSource


1 /*
2  * Copyright 2002-2007 the original author or authors.
3  *
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
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
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
17 package org.springframework.scripting;
18
19 import java.io.IOException JavaDoc;
20
21 /**
22  * Interface that defines the source of a script.
23  * Tracks whether the underlying script has been modified.
24  *
25  * @author Rob Harrop
26  * @author Juergen Hoeller
27  * @since 2.0
28  */
29 public interface ScriptSource {
30
31     /**
32      * Retrieve the current script source text as String.
33      * @return the script text
34      * @throws IOException if script retrieval failed
35      */
36     String JavaDoc getScriptAsString() throws IOException JavaDoc;
37
38     /**
39      * Indicate whether the underlying script data has been modified since
40      * the last time {@link #getScriptAsString()} was called.
41      * Returns <code>true</code> if the script has not been read yet.
42      * @return whether the script data has been modified
43      */
44     boolean isModified();
45
46 }
47
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