001 /** 002 * 003 * Copyright 2003-2004 The Apache Software Foundation 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018 // 019 // This source code implements specifications defined by the Java 020 // Community Process. In order to remain compliant with the specification 021 // DO NOT add / change / or delete method signatures! 022 // 023 024 package javax.servlet.jsp; 025 026 /** 027 * The JspEngineInfo is an abstract class that provides information on the 028 * current JSP engine. 029 */ 030 031 public abstract class JspEngineInfo { 032 033 /** 034 * Sole constructor. (For invocation by subclass constructors, 035 * typically implicit.) 036 */ 037 public JspEngineInfo() { 038 } 039 040 /** 041 * Return the version number of the JSP specification that is supported by 042 * this JSP engine. 043 * <p> 044 * Specification version numbers that consists of positive decimal integers 045 * separated by periods ".", for example, "2.0" or "1.2.3.4.5.6.7". 046 * This allows an extensible number to be used to 047 * represent major, minor, micro, etc versions. 048 * The version number must begin with a number. 049 * </p> 050 * 051 * @return the specification version, null is returned if it is not known 052 */ 053 054 public abstract String getSpecificationVersion(); 055 }