/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) Under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for Additional information regarding copyright ownership.
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The ASF licenses this file to You Under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed Under the License is distributed on an "AS Is" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations Under the License.
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==================================================================== */
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namespace HH.WMS.Utils.NPOI.SS.Formula.PTG
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{
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using System;
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/**
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* defines a Ptg that is an operation instead of an operand
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* @author andy
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*/
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[Serializable]
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public abstract class OperationPtg : Ptg
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{
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public static int TYPE_UNARY = 0;
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public static int TYPE_BINARY = 1;
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public static int TYPE_FUNCTION = 2;
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/**
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* returns a string representation of the operations
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* the Length of the input array should equal the number returned by
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* @see #GetNumberOfOperands
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*
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*/
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public abstract String ToFormulaString(String[] operands);
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/**
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* The number of operands expected by the operations
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*/
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public abstract int NumberOfOperands { get; }
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public override byte DefaultOperandClass
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{
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get { return Ptg.CLASS_VALUE; }
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}
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}
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}
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