| /* ==================================================================== |
| 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.poi.ss.formula.functions; |
| |
| import org.apache.poi.ss.formula.eval.ErrorEval; |
| import org.apache.poi.ss.formula.eval.NumberEval; |
| import org.apache.poi.ss.formula.eval.RefEval; |
| import org.apache.poi.ss.formula.eval.ValueEval; |
| import org.apache.poi.ss.formula.TwoDEval; |
| |
| /** |
| * Implementation for Excel COLUMNS function. |
| * |
| * @author Josh Micich |
| */ |
| public final class Columns extends Fixed1ArgFunction { |
| |
| public ValueEval evaluate(int srcRowIndex, int srcColumnIndex, ValueEval arg0) { |
| |
| int result; |
| if (arg0 instanceof TwoDEval) { |
| result = ((TwoDEval) arg0).getWidth(); |
| } else if (arg0 instanceof RefEval) { |
| result = 1; |
| } else { // anything else is not valid argument |
| return ErrorEval.VALUE_INVALID; |
| } |
| return new NumberEval(result); |
| } |
| } |