Mercurial > dive4elements > river

annotate flys-aft/src/main/java/de/intevation/db/SymbolicStatement.java @ 5622:b28a6d05e969

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Add a new mechanism in mapfish print call to add arbitary data maps Data properties are identified by starting with mapfish-data and they are then split in info value pairs where info can be the description of the information and value the value of the information to be transported in the data map.
author Andre Heinecke <aheinecke@intevation.de>
date Tue, 09 Apr 2013 19:04:32 +0200
parents 7a68967ca72a
children
rev   line source
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
1 package de.intevation.db;
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2
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f939e1e6cfa4 Sorted imports.
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3 import java.sql.Connection;
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4 import java.sql.PreparedStatement;
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5 import java.sql.ResultSet;
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6 import java.sql.SQLException;
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7 import java.sql.Timestamp;
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8
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9 import java.util.ArrayList;
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10 import java.util.HashMap;
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11 import java.util.List;
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12 import java.util.Map;
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13
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14 import java.util.regex.Matcher;
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15 import java.util.regex.Pattern;
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16
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17 import org.apache.log4j.Logger;
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18
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19 public class SymbolicStatement {
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20
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21 private static Logger log = Logger.getLogger(SymbolicStatement.class);
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22
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23 public static final Pattern VAR = Pattern.compile(":([a-zA-Z0-9_]+)");
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24
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25 protected String statement;
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26 protected String compiled;
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27 protected Map<String, List<Integer>> positions;
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28
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29 public class Instance {
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30
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31 /** TODO: Support more types. */
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32
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33 protected PreparedStatement stmnt;
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34
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35 public Instance(Connection connection) throws SQLException {
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36 stmnt = connection.prepareStatement(compiled);
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37 }
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38
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39 public void close() {
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40 try {
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41 stmnt.close();
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42 }
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43 catch (SQLException sqle) {
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44 log.error("cannot close statement", sqle);
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45 }
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46 }
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47
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039413d7e394 Load gauges from both dbs.
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48 public Instance setInt(String key, int value)
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49 throws SQLException
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50 {
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51 List<Integer> pos = positions.get(key.toLowerCase());
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52 if (pos != null) {
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53 for (Integer p: pos) {
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54 stmnt.setInt(p, value);
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55 }
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56 }
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57
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58 return this;
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59 }
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60
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61 public Instance setString(String key, String value)
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62 throws SQLException
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63 {
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64 List<Integer> pos = positions.get(key.toLowerCase());
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65 if (pos != null) {
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66 for (Integer p: pos) {
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67 stmnt.setString(p, value);
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68 }
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69 }
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70 return this;
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71 }
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72
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73 public Instance setObject(String key, Object value)
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74 throws SQLException
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75 {
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76 List<Integer> pos = positions.get(key.toLowerCase());
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77 if (pos != null) {
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78 for (Integer p: pos) {
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79 stmnt.setObject(p, value);
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80 }
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81 }
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82 return this;
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83 }
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84
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85 public Instance setTimestamp(String key, Timestamp value)
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86 throws SQLException
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87 {
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88 List<Integer> pos = positions.get(key.toLowerCase());
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89 if (pos != null) {
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90 for (Integer p: pos) {
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91 stmnt.setTimestamp(p, value);
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92 }
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93 }
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94 return this;
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95 }
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96
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aad1886ea226 Store new gauges in FLYS db.
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97 public Instance setDouble(String key, double value)
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98 throws SQLException
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99 {
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100 List<Integer> pos = positions.get(key.toLowerCase());
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101 if (pos != null) {
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102 for (Integer p: pos) {
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103 stmnt.setDouble(p, value);
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104 }
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105 }
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106 return this;
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107 }
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108
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981de0b77c6b If gauges exist in FLYS and AFT store the discharge tables in FLYS that are only in AFT.
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109 public Instance setLong(String key, long value)
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110 throws SQLException
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111 {
981de0b77c6b If gauges exist in FLYS and AFT store the discharge tables in FLYS that are only in AFT.
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112 List<Integer> pos = positions.get(key.toLowerCase());
981de0b77c6b If gauges exist in FLYS and AFT store the discharge tables in FLYS that are only in AFT.
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113 if (pos != null) {
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114 for (Integer p: pos) {
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115 stmnt.setLong(p, value);
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116 }
981de0b77c6b If gauges exist in FLYS and AFT store the discharge tables in FLYS that are only in AFT.
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parents: 4087
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117 }
981de0b77c6b If gauges exist in FLYS and AFT store the discharge tables in FLYS that are only in AFT.
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118 return this;
981de0b77c6b If gauges exist in FLYS and AFT store the discharge tables in FLYS that are only in AFT.
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parents: 4087
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119 }
981de0b77c6b If gauges exist in FLYS and AFT store the discharge tables in FLYS that are only in AFT.
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parents: 4087
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120
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121 public Instance setNull(String key, int sqlType)
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122 throws SQLException
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123 {
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124 List<Integer> pos = positions.get(key.toLowerCase());
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125 if (pos != null) {
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126 for (Integer p: pos) {
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127 stmnt.setNull(p, sqlType);
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128 }
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129 }
4076
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130 return this;
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131 }
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132
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133 public Instance set(Map<String, Object> map) throws SQLException {
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134 for (Map.Entry<String, Object> entry: map.entrySet()) {
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135 setObject(entry.getKey(), entry.getValue());
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136 }
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137 return this;
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138 }
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139
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140 public Instance clearParameters() throws SQLException {
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141 stmnt.clearParameters();
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142 return this;
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143 }
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144
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145 public boolean execute() throws SQLException {
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146 if (log.isDebugEnabled()) {
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147 log.debug("execute: " + compiled);
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148 }
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149 return stmnt.execute();
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150 }
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151
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152 public ResultSet executeQuery() throws SQLException {
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153 if (log.isDebugEnabled()) {
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154 log.debug("query: " + compiled);
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155 }
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156 return stmnt.executeQuery();
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157 }
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158
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159 public int executeUpdate() throws SQLException {
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160 if (log.isDebugEnabled()) {
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161 log.debug("update: " + compiled);
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162 }
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163 return stmnt.executeUpdate();
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164 }
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165
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166 } // class Instance
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167
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168 public SymbolicStatement(String statement) {
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169 this.statement = statement;
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170 compile();
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171 }
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172
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173 public String getStatement() {
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174 return statement;
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175 }
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176
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177 protected void compile() {
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178 positions = new HashMap<String, List<Integer>>();
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179
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180 StringBuffer sb = new StringBuffer();
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181 Matcher m = VAR.matcher(statement);
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182 int index = 1;
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183 while (m.find()) {
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184 String key = m.group(1).toLowerCase();
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185 List<Integer> list = positions.get(key);
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186 if (list == null) {
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187 list = new ArrayList<Integer>();
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188 positions.put(key, list);
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189 }
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190 list.add(index++);
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191 m.appendReplacement(sb, "?");
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192 }
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193 m.appendTail(sb);
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194 compiled = sb.toString();
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195 }
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196 } // class SymbolicStatement
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