1    
2    /* ====================================================================
3     * The Apache Software License, Version 1.1
4     *
5     * Copyright (c) 2002 The Apache Software Foundation.  All rights
6     * reserved.
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8     * Redistribution and use in source and binary forms, with or without
9     * modification, are permitted provided that the following conditions
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12    * 1. Redistributions of source code must retain the above copyright
13    *    notice, this list of conditions and the following disclaimer.
14    *
15    * 2. Redistributions in binary form must reproduce the above copyright
16    *    notice, this list of conditions and the following disclaimer in
17    *    the documentation and/or other materials provided with the
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20    * 3. The end-user documentation included with the redistribution,
21    *    if any, must include the following acknowledgment:
22    *       "This product includes software developed by the
23    *        Apache Software Foundation (http://www.apache.org/)."
24    *    Alternately, this acknowledgment may appear in the software itself,
25    *    if and wherever such third-party acknowledgments normally appear.
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27    * 4. The names "Apache" and "Apache Software Foundation" and
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29    *    derived from this software without prior written permission. For
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32    * 5. Products derived from this software may not be called "Apache",
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34    *    prior written permission of the Apache Software Foundation.
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51    * individuals on behalf of the Apache Software Foundation.  For more
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54    */
55   
56   /*
57    * AddPtg.java
58    *
59    * Created on October 29, 2001, 7:48 PM
60    */
61   package org.apache.poi.hssf.record.formula;
62   
63   import java.util.List;
64   
65   import org.apache.poi.hssf.util.SheetReferences;
66   
67   /**
68    * Addition operator PTG the "+" binomial operator.  If you need more 
69    * explanation than that then well...We really can't help you here.
70    * @author  Andrew C. Oliver (acoliver@apache.org)
71    * @author Jason Height (jheight at chariot dot net dot au)
72    */
73   
74   public class AddPtg
75       extends OperationPtg
76   {
77       public final static int  SIZE = 1;
78       public final static byte sid  = 0x03;
79       
80       private final static String ADD = "+";
81   
82       /** Creates new AddPtg */
83   
84       public AddPtg()
85       {
86       }
87   
88       public AddPtg(byte [] data, int offset)
89       {
90   
91           // doesn't need anything
92       }
93       
94      
95       public void writeBytes(byte [] array, int offset)
96       {
97           array[ offset + 0 ] = sid;
98       }
99   
100      public int getSize()
101      {
102          return SIZE;
103      }
104  
105      public int getType()
106      {
107          return TYPE_BINARY;
108      }
109  
110      public int getNumberOfOperands()
111      {
112          return 2;
113      }
114      
115      /** Implementation of method from Ptg */
116      public String toFormulaString(SheetReferences refs)
117      {
118          return "+";
119      }
120         
121     /** implementation of method from OperationsPtg*/  
122      public String toFormulaString(String[] operands) {
123          StringBuffer buffer = new StringBuffer();
124  
125          buffer.append(operands[ 0 ]);
126          buffer.append(ADD);
127          buffer.append(operands[ 1 ]);
128          return buffer.toString();
129      }
130      
131      public byte getDefaultOperandClass() {return Ptg.CLASS_VALUE;}
132             
133      public Object clone() {
134        return new AddPtg();
135      }
136  
137  }
138