/* ====================================================================   Copyright 2003-2004   Apache Software Foundation   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 org.apache.poi.hssf.record.formula;import java.util.List;import org.apache.poi.hssf.model.Workbook;/** * * @author  andy * @author Jason Height (jheight at chariot dot net dot au) */public class ConcatPtg    extends OperationPtg{    public final static int  SIZE = 1;    public final static byte sid  = 0x08;        private final static String CONCAT = "&";    public ConcatPtg(byte [] data, int offset)    {        // doesn't need anything    }        public ConcatPtg() {            }    public void writeBytes(byte [] array, int offset)    {        array[ offset + 0 ] = sid;    }    public int getSize()    {        return SIZE;    }    public int getType()    {        return TYPE_BINARY;    }    public int getNumberOfOperands()    {        return 2;    }    public String toFormulaString(Workbook book)    {        return CONCAT;    }               public String toFormulaString(String[] operands) {        StringBuffer buffer = new StringBuffer();        buffer.append(operands[ 0 ]);        buffer.append(CONCAT);        buffer.append(operands[ 1 ]);        return buffer.toString();    }               public Object clone() {      return new ConcatPtg();    }}