/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License.  You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jakarta.servlet.jsp;

The JspEngineInfo is an abstract class that provides information on the
current JSP engine.
/**
 * The JspEngineInfo is an abstract class that provides information on the
 * current JSP engine.
 */

public abstract class JspEngineInfo {

    
Sole constructor. (For invocation by subclass constructors,
typically implicit.)
/**
     * Sole constructor. (For invocation by subclass constructors,
     * typically implicit.)
     */
    public JspEngineInfo() {
        // NOOP by default
    }

    
Return the version number of the JSP specification that is supported by
this JSP engine.

Specification version numbers that consists of positive decimal integers
separated by periods ".", for example, "2.0" or "1.2.3.4.5.6.7".
This allows an extensible number to be used to
represent major, minor, micro, etc versions.
The version number must begin with a number.

Returns:
the specification version, null is returned if it is not known/**
     * Return the version number of the JSP specification that is supported by
     * this JSP engine.
     * <p>
     * Specification version numbers that consists of positive decimal integers
     * separated by periods ".", for example, "2.0" or "1.2.3.4.5.6.7".
     * This allows an extensible number to be used to
     * represent major, minor, micro, etc versions.
     * The version number must begin with a number.
     * </p>
     *
     * @return the specification version, null is returned if it is not known
     */

    public abstract String getSpecificationVersion();
}