addptg.java

来自「EXCEL read and write」· Java 代码 · 共 55 行

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   this work for additional information regarding copyright ownership.
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   (the "License"); you may not use this file except in compliance with
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   distributed under the License is distributed on an "AS IS" BASIS,
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package org.apache.poi.hssf.record.formula;

/**
 * Addition operator PTG the "+" binomial operator.  If you need more 
 * explanation than that then well...We really can't help you here.
 * @author  Andrew C. Oliver ([e-mail])
 * @author Jason Height (jheight at chariot dot net dot au)
 */
public final class AddPtg extends ValueOperatorPtg {
    public final static byte sid  = 0x03;
    
    private final static String ADD = "+";

    public static final ValueOperatorPtg instance = new AddPtg();

    private AddPtg() {
    	// enforce singleton
    }
    
    protected byte getSid() {
    	return sid;
    }

    public int getNumberOfOperands() {
        return 2;
    }
       
   /** implementation of method from OperationsPtg*/  
    public String toFormulaString(String[] operands) {
        StringBuffer buffer = new StringBuffer();

        buffer.append(operands[ 0 ]);
        buffer.append(ADD);
        buffer.append(operands[ 1 ]);
        return buffer.toString();
    }
}