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- /*
- * 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;
-
- 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() +
- "]";
- }
- }
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