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Fluent Java API for easier work with numbers, writing formula and calculations in Java.

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/*
 * Copyright 2014 Davor Sauer
 *
 * Licensed 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 org.jdice.calc.internal;

import java.util.HashMap;

import org.jdice.calc.AbstractCalculator;
import org.jdice.calc.Calculator;
import org.jdice.calc.Extension;
import org.jdice.calc.Function;
import org.jdice.calc.Operator;

/**
 * Link interfaces of extensions methods implemented in AbstractCalculator with concrete implementation of extension like {@link Operator} or {@link Function}. 
 * e.g. Link interface {@link Add} which is implemented in {@link Calculator} with concrete implementation {@link AddOperator} of extension.
 * 
 * @author Davor Sauer 
 *
 */
public class BindExtensionProvider {
    
    private static HashMap> bind = new HashMap>();
    
    /**
     * Bind implemented interface used in {@link AbstractCalculator} instances with concrete implementation of {@link Operator} or {@link Function}
     * @param clazz
     * @param implementation
     */
    public static void bind(Class clazz, Class implementation) {
        bind.put(clazz, implementation);
    }
    
    /**
     * Get extension implementation class ({@link Operator}, {@link Function}).
     * @param clazz
     * @return
     */
    public static Class getExtension(Class clazz) {
        return bind.get(clazz);
    }

}