UnionPtg


1   /* ====================================================================
2      Copyright 2003-2004   Apache Software Foundation
3   
4      Licensed under the Apache License, Version 2.0 (the "License");
5      you may not use this file except in compliance with the License.
6      You may obtain a copy of the License at
7   
8          http://www.apache.org/licenses/LICENSE-2.0
9   
10     Unless required by applicable law or agreed to in writing, software
11     distributed under the License is distributed on an "AS IS" BASIS,
12     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13     See the License for the specific language governing permissions and
14     limitations under the License.
15  ==================================================================== */
16  
17  package org.apache.poi.hssf.record.formula;
18  
19  import org.apache.poi.hssf.model.Workbook;
20  
21  /**
22   * @author Glen Stampoultzis (glens at apache.org)
23   */
24  public class UnionPtg extends OperationPtg
25  {
26      public final static byte sid  = 0x10;
27  
28  
29      public UnionPtg()
30      {
31      }
32  
33      public UnionPtg(byte [] data, int offset)
34      {
35          // doesn't need anything
36      }
37  
38  
39      public int getSize()
40      {
41          return 1;
42      }
43  
44      public void writeBytes( byte[] array, int offset )
45      {
46          array[ offset + 0 ] = sid;
47      }
48  
49      public Object   clone()
50      {
51          return new UnionPtg();
52      }
53  
54      public int getType()
55      {
56          return TYPE_BINARY;
57      }
58  
59      /** Implementation of method from Ptg */
60      public String   toFormulaString(Workbook book)
61      {
62          return ",";
63      }
64  
65  
66      /** implementation of method from OperationsPtg*/
67      public String   toFormulaString(String  [] operands)
68      {
69           StringBuffer   buffer = new StringBuffer  ();
70  
71           buffer.append(operands[ 0 ]);
72           buffer.append(",");
73           buffer.append(operands[ 1 ]);
74           return buffer.toString();
75       }
76  
77      public int getNumberOfOperands()
78      {
79          return 2;
80      }
81  
82  }
83
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