| /* |
| * 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. |
| */ |
| /* |
| * Created on May 8, 2005 |
| * |
| */ |
| package org.apache.poi.ss.formula.eval; |
| |
| import org.apache.poi.ss.formula.ptg.IntPtg; |
| import org.apache.poi.ss.formula.ptg.NumberPtg; |
| import org.apache.poi.ss.formula.ptg.Ptg; |
| import org.apache.poi.ss.util.NumberToTextConverter; |
| |
| /** |
| * @author Amol S. Deshmukh < amolweb at ya hoo dot com > |
| * |
| */ |
| public final class NumberEval implements NumericValueEval, StringValueEval { |
| |
| public static final NumberEval ZERO = new NumberEval(0); |
| |
| private final double _value; |
| private String _stringValue; |
| |
| public NumberEval(Ptg ptg) { |
| if (ptg == null) { |
| throw new IllegalArgumentException("ptg must not be null"); |
| } |
| if (ptg instanceof IntPtg) { |
| _value = ((IntPtg) ptg).getValue(); |
| } else if (ptg instanceof NumberPtg) { |
| _value = ((NumberPtg) ptg).getValue(); |
| } else { |
| throw new IllegalArgumentException("bad argument type (" + ptg.getClass().getName() + ")"); |
| } |
| } |
| |
| public NumberEval(double value) { |
| _value = value; |
| } |
| |
| public double getNumberValue() { |
| return _value; |
| } |
| |
| public String getStringValue() { |
| if (_stringValue == null) { |
| _stringValue = NumberToTextConverter.toText(_value); |
| } |
| return _stringValue; |
| } |
| public final String toString() { |
| return getClass().getName() + " [" + |
| getStringValue() + |
| "]"; |
| } |
| } |