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1 /*
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2 Copyright (c) 2008 Franklin Schmidt <fschmidt@gmail.com>
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3
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4 Permission is hereby granted, free of charge, to any person obtaining a copy
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5 of this software and associated documentation files (the "Software"), to deal
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6 in the Software without restriction, including without limitation the rights
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7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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8 copies of the Software, and to permit persons to whom the Software is
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9 furnished to do so, subject to the following conditions:
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10
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11 The above copyright notice and this permission notice shall be included in
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12 all copies or substantial portions of the Software.
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13
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14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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20 THE SOFTWARE.
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21 */
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22
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23 package fschmidt.db.base;
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24
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25 import fschmidt.db.DbKey;
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26 import fschmidt.db.DbKeySetter;
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27 import fschmidt.db.DbObject;
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28 import fschmidt.db.DbObjectFactory;
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29 import fschmidt.db.ListenerList;
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30 import fschmidt.db.SQLRuntimeException;
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31 import fschmidt.db.extend.DbDatabaseExt;
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32 import fschmidt.db.extend.DbTableExt;
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33
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34 import java.sql.Connection;
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35 import java.sql.PreparedStatement;
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36 import java.sql.ResultSet;
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37 import java.sql.SQLException;
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38 import java.util.Collection;
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39 import java.util.HashMap;
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40 import java.util.Map;
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41
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42
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43 final class DbTableImpl<K extends DbKey,V extends DbObject<K,V>> extends DbTableExt<K,V> {
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44 private final String tableName;
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45 private final DbKeySetter<K> keySetter;
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46 private final DbObjectFactory<K,V> objFactory;
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47
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48 DbTableImpl(DbDatabaseExt database,String tableName,DbKeySetter<K> keySetter,DbObjectFactory<K,V> objFactory) {
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49 super(database);
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50 this.tableName = tableName;
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51 this.keySetter = keySetter;
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52 this.objFactory = objFactory;
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53 }
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54
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55 public String getTableName() {
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56 return tableName;
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57 }
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58
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59 public DbKeySetter<K> getKeySetter() {
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60 return keySetter;
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61 }
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62
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63 public final V findByPrimaryKey(K key) {
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64 try {
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65 Connection con = database.getConnection();
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66 try {
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67 PreparedStatement stmt = keySetter.prepareStatement(
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68 con, key, "select * from "+tableName, 1
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69 );
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70 ResultSet rs = stmt.executeQuery();
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71 V obj = null;
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72 if( rs.next() )
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73 obj = getDbObject(key,rs);
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74 stmt.close();
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75 return obj;
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76 } finally {
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77 con.close();
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78 }
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79 } catch(SQLException e) {
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80 throw new SQLRuntimeException("key = "+key,e);
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81 }
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82 }
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83
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84 public final Map<K,V> findByPrimaryKey(Collection<K> keys) {
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85 Map<K,V> map = new HashMap<K,V>();
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86 try {
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87 Connection con = database.getConnection();
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88 try {
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89 PreparedStatement stmt = keySetter.prepareStatement(
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90 con, keys, "select * from "+tableName, getDbDatabase().arcana()
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91 );
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92 ResultSet rs = stmt.executeQuery();
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93 while( rs.next() ) {
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94 K key = keySetter.getKey(rs);
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95 map.put( key, getDbObject(key,rs) );
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96 }
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97 stmt.close();
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98 } finally {
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99 con.close();
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100 }
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101 } catch(SQLException e) {
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102 throw new SQLRuntimeException("keys = "+keys,e);
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103 }
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104 return map;
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105 }
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106
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107 public V getDbObject(K key,ResultSet rs,String tableName)
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108 throws SQLException
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109 {
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110 return objFactory.makeDbObject(key,rs,tableName);
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111 }
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112
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113
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114 private ListenerList<V> preInsertListeners;
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115 private ListenerList<V> preUpdateListeners;
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116 private ListenerList<V> preDeleteListeners;
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117 private ListenerList<V> postInsertListeners;
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118 private ListenerList<V> postUpdateListeners;
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119 private ListenerList<V> postDeleteListeners;
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120
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121 public synchronized ListenerList<V> getPreInsertListeners() {
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122 if (preInsertListeners == null)
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123 preInsertListeners = new ListenerList<V>();
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124 return preInsertListeners;
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125 }
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126
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127 public synchronized ListenerList<V> getPreUpdateListeners() {
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128 if (preUpdateListeners == null)
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129 preUpdateListeners = new ListenerList<V>();
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130 return preUpdateListeners;
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131 }
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132
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133 public synchronized ListenerList<V> getPreDeleteListeners() {
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134 if (preDeleteListeners == null)
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135 preDeleteListeners = new ListenerList<V>();
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136 return preDeleteListeners;
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137 }
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138
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139 public synchronized ListenerList<V> getPostInsertListeners() {
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140 if (postInsertListeners == null)
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141 postInsertListeners = new ListenerList<V>();
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142 return postInsertListeners;
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143 }
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144
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145 public synchronized ListenerList<V> getPostUpdateListeners() {
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146 if (postUpdateListeners == null)
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147 postUpdateListeners = new ListenerList<V>();
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148 return postUpdateListeners;
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149 }
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150
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151 public synchronized ListenerList<V> getPostDeleteListeners() {
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152 if (postDeleteListeners == null)
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153 postDeleteListeners = new ListenerList<V>();
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154 return postDeleteListeners;
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155 }
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156
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157 public void uncache(DbKey key) {}
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158
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159 }
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