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Java > Open Source Codes > javax > servlet > jsp > JspEngineInfo


1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * 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 javax.servlet.jsp;
18
19 /**
20  * The JspEngineInfo is an abstract class that provides information on the
21  * current JSP engine.
22  */
23
24 public abstract class JspEngineInfo {
25
26     /**
27      * Sole constructor. (For invocation by subclass constructors,
28      * typically implicit.)
29      */
30     public JspEngineInfo() {
31     }
32     
33     /**
34      * Return the version number of the JSP specification that is supported by
35      * this JSP engine.
36      * <p>
37      * Specification version numbers that consists of positive decimal integers
38      * separated by periods ".", for example, "2.0" or "1.2.3.4.5.6.7".
39      * This allows an extensible number to be used to
40      * represent major, minor, micro, etc versions.
41      * The version number must begin with a number.
42      * </p>
43      *
44      * @return the specification version, null is returned if it is not known
45      */
46
47     public abstract String JavaDoc getSpecificationVersion();
48 }
49
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