https://tomcat.apache.org/: Expression language package 
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 * 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
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package jakarta.el;

import java.lang.reflect.Method;

public abstract class FunctionMapper {

    public abstract Method resolveFunction(String prefix, String localName);

    
Map a method to a function name.

Params:
  • prefix –    Function prefix
  • localName – Function name
  • method –    Method
Since:EL 3.0
/**
     * Map a method to a function name.
     *
     * @param prefix    Function prefix
     * @param localName Function name
     * @param method    Method
     *
     * @since EL 3.0
     */
    public void mapFunction(String prefix, String localName, Method method) {
        // NO-OP
    }
}