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Java > Open Source Codes > com > caucho > amber > type > ByteArrayType


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free Software Foundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.amber.type;
30
31 import com.caucho.java.JavaWriter;
32 import com.caucho.util.L10N;
33
34 import java.io.IOException JavaDoc;
35 import java.sql.PreparedStatement JavaDoc;
36 import java.sql.ResultSet JavaDoc;
37 import java.sql.SQLException JavaDoc;
38
39 /**
40  * The type of a property.
41  */
42 public class ByteArrayType extends ArrayType {
43   private static final L10N L = new L10N(ByteArrayType.class);
44
45   private ByteArrayType()
46   {
47   }
48
49   /**
50    * Returns the singleton ByteArray type.
51    */
52   public static ByteArrayType create()
53   {
54     return new ByteArrayType();
55   }
56
57   /**
58    * Returns the type name.
59    */
60   public String JavaDoc getName()
61   {
62     return "java.lang.Byte[]";
63   }
64
65   /**
66    * Returns the java type.
67    */
68   public String JavaDoc getJavaTypeName()
69   {
70     return "java.lang.Byte[]";
71   }
72
73   /**
74    * Returns the java type for a single entry.
75    */
76   public String JavaDoc getJavaObjectTypeName()
77   {
78     return "java.lang.Byte";
79   }
80
81   /**
82    * Returns the corresponding primitive array
83    * type name.
84    */
85   public String JavaDoc getPrimitiveArrayTypeName()
86   {
87     return "byte[]";
88   }
89
90   /**
91    * Generates a string to load the property.
92    */
93   public int generateLoad(JavaWriter out, String JavaDoc rs,
94                           String JavaDoc indexVar, int index)
95     throws IOException JavaDoc
96   {
97     out.print(rs + ".getBytes(" + indexVar + " + " + index + ")");
98
99     return index + 1;
100   }
101
102   /**
103    * Generates a string to set the property.
104    */
105   public void generateSet(JavaWriter out, String JavaDoc pstmt,
106                           String JavaDoc index, String JavaDoc value)
107     throws IOException JavaDoc
108   {
109     out.println("if (" + value + " == null)");
110     out.println(" " + pstmt + ".setNull(" + index + "++, java.sql.Types.LONGVARBINARY);");
111     out.println("else {");
112     out.println(" java.lang.Byte[] super_temp_" + index + " = " + value + ";");
113     out.println(" byte[] temp_" + index + " = new byte[super_temp_" + index + ".length];");
114     out.println(" for (int i=0; i < temp_" + index + ".length; i++)");
115     out.println(" temp_" + index + "[i] = super_temp_" + index + "[i].byteValue();");
116     out.println(" " + pstmt + ".setBytes(" + index + "++, temp_" + index + ");");
117     out.println("}");
118   }
119
120   /**
121    * Sets the value.
122    */
123   public void setParameter(PreparedStatement JavaDoc pstmt, int index, Object JavaDoc value)
124     throws SQLException JavaDoc
125   {
126     Byte JavaDoc[] wrapperByte = (Byte JavaDoc []) value;
127
128     byte[] primitiveByte = new byte[wrapperByte.length];
129     for (int i=0; i<wrapperByte.length; i++)
130       primitiveByte[i] = wrapperByte[i].byteValue();
131
132     pstmt.setBytes(index, primitiveByte);
133   }
134
135   /**
136    * Gets the value.
137    */
138   public Object JavaDoc getObject(ResultSet JavaDoc rs, int index)
139     throws SQLException JavaDoc
140   {
141     byte[] primitiveByte = rs.getBytes(index);
142
143     if (rs.wasNull())
144       return null;
145
146     Byte JavaDoc[] wrapperByte = new Byte JavaDoc[primitiveByte.length];
147     for (int i=0; i < primitiveByte.length; i++)
148       wrapperByte[i] = new Byte JavaDoc(primitiveByte[i]);
149
150     return wrapperByte;
151   }
152 }
153
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