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JPMML class model evaluator

There is a newer version: 1.6.6

/*
 * Copyright (c) 2014 Villu Ruusmann
 *
 * This file is part of JPMML-Evaluator
 *
 * JPMML-Evaluator is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * JPMML-Evaluator is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with JPMML-Evaluator.  If not, see .
 */
package org.jpmml.evaluator.functions;

import org.jpmml.evaluator.FieldValue;
import org.jpmml.evaluator.FieldValueUtil;
import org.jpmml.evaluator.TypeInfos;

abstract
public class StringFunction extends UnaryFunction {

	public StringFunction(String name){
		super(name);
	}

	abstract
	public String evaluate(String value);

	@Override
	public FieldValue evaluate(FieldValue value){
		String result = evaluate(value.asString());

		return FieldValueUtil.create(TypeInfos.CATEGORICAL_STRING, result);
	}
}