/*
* 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 org.apache.commons.math3.util;
import org.apache.commons.math3.exception.MathIllegalArgumentException;
/**
* Subclasses implementing this interface can transform Objects to doubles.
*
* No longer extends Serializable since 2.0
*
*/
public interface NumberTransformer {
/**
* Implementing this interface provides a facility to transform
* from Object to Double.
*
* @param o the Object to be transformed.
* @return the double value of the Object.
* @throws MathIllegalArgumentException if the Object can not be transformed into a Double.
*/
double transform(Object o) throws MathIllegalArgumentException;
}