NumberToken.java

/*
* Copyright 2014 Frank Asseg
*
* 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 net.objecthunter.exp4j.tokenizer;

/**
 * Represents a number in the expression
 */
public final class NumberToken extends Token {
    private static final long serialVersionUID = 8088233934450699175L;

    private final double value;

    /**
     * Create a new instance
     * @param value the value of the number
     */
    public NumberToken(double value) {
        super(TokenType.NUMBER);
        this.value = value;
    }

    NumberToken(final char[] expression, final int offset, final int len) {
        this(Double.parseDouble(String.valueOf(expression, offset, len)));
    }

    /**
     * Get the value of the number
     * @return the value
     */
    public double getValue() {
        return value;
    }

    @Override
    public String toString() {
        return Double.toString(value);
    }
}