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1
10
11 package com.triactive.jdo.store;
12
13 import com.triactive.jdo.PersistenceManager;
14 import java.sql.PreparedStatement  ;
15 import java.sql.ResultSet ;
16 import javax.jdo.JDOFatalInternalException;
17
18
19
30
31 public abstract class ColumnMapping extends Mapping
32 {
33 protected final Column col;
34
35 protected TypeInfo typeInfo;
36
37 public ColumnMapping(DatabaseAdapter dba, Class type)
38 {
39 super(dba, type);
40 this.col = null;
41 }
42
43 public ColumnMapping(Column col)
44 {
45 super(col.getStoreManager().getDatabaseAdapter(), col.getType());
46 this.col = col;
47 }
48
49 protected abstract TypeInfo getTypeInfo();
50
51 protected void initTypeInfo()
52 {
53 TypeInfo typeInfo = getTypeInfo();
54
55 if (typeInfo == null)
56 throw new UnsupportedDataTypeException("No suitable JDBC type found for column " + col);
57
58 if (this.typeInfo != null)
59 throw new IllegalStateException ("JDBC type already selected for column " + col);
60
61 this.typeInfo = typeInfo;
62
63 if (col != null)
64 col.setTypeInfo(typeInfo);
65 }
66
67 public Column getColumn()
68 {
69 return col;
70 }
71
72 public String getSQLInsertionValue()
73 {
74 return "?";
75 }
76
77 public String getSQLUpdateValue()
78 {
79 return "?";
80 }
81
82 public SQLExpression newSQLExpression(QueryStatement qs, TableExpression te, String fieldName)
83 {
84 if (col == null)
85 throw new JDOFatalInternalException("Mapping has no specific column: " + this);
86
87 return newSQLExpression(qs, qs.getColumn(te, col), fieldName);
88 }
89
90 protected String failureMessage(String method)
91 {
92 return "Somehow " + getClass().getName() + "." + method + "() was called, which should not have been possible";
93 }
94
95 public void setBoolean(PersistenceManager pm, PreparedStatement ps, int param, boolean value)
96 {
97 throw new JDOFatalInternalException(failureMessage("setBoolean"));
98 }
99
100 public boolean getBoolean(PersistenceManager pm, ResultSet rs, int column)
101 {
102 throw new JDOFatalInternalException(failureMessage("setBoolean"));
103 }
104
105 public void setChar(PersistenceManager pm, PreparedStatement ps, int param, char value)
106 {
107 throw new JDOFatalInternalException(failureMessage("setChar"));
108 }
109
110 public char getChar(PersistenceManager pm, ResultSet rs, int column)
111 {
112 throw new JDOFatalInternalException(failureMessage("getChar"));
113 }
114
115 public void setByte(PersistenceManager pm, PreparedStatement ps, int param, byte value)
116 {
117 throw new JDOFatalInternalException(failureMessage("setByte"));
118 }
119
120 public byte getByte(PersistenceManager pm, ResultSet rs, int column)
121 {
122 throw new JDOFatalInternalException(failureMessage("getByte"));
123 }
124
125 public void setShort(PersistenceManager pm, PreparedStatement ps, int param, short value)
126 {
127 throw new JDOFatalInternalException(failureMessage("setShort"));
128 }
129
130 public short getShort(PersistenceManager pm, ResultSet rs, int column)
131 {
132 throw new JDOFatalInternalException(failureMessage("getShort"));
133 }
134
135 public void setInt(PersistenceManager pm, PreparedStatement ps, int param, int value)
136 {
137 throw new JDOFatalInternalException(failureMessage("setInt"));
138 }
139
140 public int getInt(PersistenceManager pm, ResultSet rs, int column)
141 {
142 throw new JDOFatalInternalException(failureMessage("getInt"));
143 }
144
145 public void setLong(PersistenceManager pm, PreparedStatement ps, int param, long value)
146 {
147 throw new JDOFatalInternalException(failureMessage("setLong"));
148 }
149
150 public long getLong(PersistenceManager pm, ResultSet rs, int column)
151 {
152 throw new JDOFatalInternalException(failureMessage("getLong"));
153 }
154
155 public void setFloat(PersistenceManager pm, PreparedStatement ps, int param, float value)
156 {
157 throw new JDOFatalInternalException(failureMessage("setFloat"));
158 }
159
160 public float getFloat(PersistenceManager pm, ResultSet rs, int column)
161 {
162 throw new JDOFatalInternalException(failureMessage("getFloat"));
163 }
164
165 public void setDouble(PersistenceManager pm, PreparedStatement ps, int param, double value)
166 {
167 throw new JDOFatalInternalException(failureMessage("setDouble"));
168 }
169
170 public double getDouble(PersistenceManager pm, ResultSet rs, int column)
171 {
172 throw new JDOFatalInternalException(failureMessage("getDouble"));
173 }
174
175 public void setString(PersistenceManager pm, PreparedStatement ps, int param, String value)
176 {
177 throw new JDOFatalInternalException(failureMessage("setString"));
178 }
179
180 public String getString(PersistenceManager pm, ResultSet rs, int column)
181 {
182 throw new JDOFatalInternalException(failureMessage("getString"));
183 }
184
185 public void setObject(PersistenceManager pm, PreparedStatement ps, int param, Object value)
186 {
187 throw new JDOFatalInternalException(failureMessage("setObject"));
188 }
189
190 public Object getObject(PersistenceManager pm, ResultSet rs, int column)
191 {
192 throw new JDOFatalInternalException(failureMessage("getObject"));
193 }
194
195 public boolean equals(Object obj)
196 {
197 if (this == obj)
198 return true;
199
200 if (!(obj instanceof ColumnMapping))
201 return false;
202
203 ColumnMapping cm = (ColumnMapping)obj;
204
205 return getClass().equals(cm.getClass())
206 && dba.equals(cm.dba)
207 && (col == null ? cm.col == null : col.equals(cm.col))
208 && (typeInfo == null ? cm.typeInfo == null : typeInfo.equals(cm.typeInfo));
209 }
210
211 public int hashCode()
212 {
213 return dba.hashCode()
214 ^ (col == null ? 0 : col.hashCode())
215 ^ (typeInfo == null ? 0 : typeInfo.hashCode());
216 }
217 }
218 |
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