?? connectionutils.java
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package org.ecside.easydataaccess;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
public class ConnectionUtils {
public static final ThreadLocal statementMap = new ThreadLocal();
public static void initStatementMap(Connection conn){
String key=String.valueOf(conn);
Map map=(Map)statementMap.get();
if (map==null){
map=Collections.synchronizedMap(new HashMap());
statementMap.set(map);
}
if (map.get(key)==null) {
map.put(key, new ArrayList());
}
}
public static void putStatement(Connection conn,Statement statement){
Map map=(Map)statementMap.get();
List list=(List)map.get(conn.toString());
list.add(statement);
}
public static void closeAllStatement(Connection conn){
Map map=(Map)statementMap.get();
List list=(List)map.get(conn.toString());
for (Iterator itor=list.iterator();itor.hasNext();){
Statement stm=(Statement)itor.next();
try {
stm.close();
} catch (SQLException e) {
}
}
}
public static Statement createStatement(Connection conn) throws SQLException{
Statement statement=conn.createStatement();
putStatement(conn,statement);
return statement;
}
public static Statement createStatement(Connection conn, int resultSetType, int resultSetConcurrency) throws SQLException{
Statement statement=conn.createStatement(resultSetType,resultSetConcurrency);
putStatement(conn,statement);
return statement;
}
public static Statement createStatement(Connection conn, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException{
Statement statement=conn.createStatement(resultSetType,resultSetConcurrency,resultSetHoldability);
putStatement(conn,statement);
return statement;
}
public static CallableStatement prepareCall(Connection conn, String sql) throws SQLException {
CallableStatement statement=conn.prepareCall(sql);
putStatement(conn,statement);
return statement;
}
public static CallableStatement prepareCall(Connection conn, String sql, int resultSetType, int resultSetConcurrency) throws SQLException {
CallableStatement statement=conn.prepareCall(sql,resultSetType,resultSetConcurrency);
putStatement(conn,statement);
return statement;
}
public static CallableStatement prepareCall(Connection conn, String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException{
CallableStatement statement= conn.prepareCall(sql,resultSetType,resultSetConcurrency,resultSetHoldability);
putStatement(conn,statement);
return statement;
}
public static PreparedStatement prepareStatement(Connection conn, String sql) throws SQLException{
PreparedStatement statement= conn.prepareStatement(sql);
putStatement(conn,statement);
return statement;
}
public static PreparedStatement prepareStatement(Connection conn, String sql, int autoGeneratedKeys) throws SQLException{
PreparedStatement statement= conn.prepareStatement(sql, autoGeneratedKeys);
putStatement(conn,statement);
return statement;
}
public static PreparedStatement prepareStatement(Connection conn, String sql, int[] columnIndexes) throws SQLException{
PreparedStatement statement= conn.prepareStatement(sql, columnIndexes);
putStatement(conn,statement);
return statement;
}
public static PreparedStatement prepareStatement(Connection conn, String sql, int resultSetType, int resultSetConcurrency) throws SQLException{
PreparedStatement statement= conn.prepareStatement(sql, resultSetType, resultSetConcurrency);
putStatement(conn,statement);
return statement;
}
public static PreparedStatement prepareStatement(Connection conn, String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException{
PreparedStatement statement= conn.prepareStatement(sql, resultSetType, resultSetConcurrency,resultSetHoldability);
putStatement(conn,statement);
return statement;
}
public static PreparedStatement prepareStatement(Connection conn, String sql, String[] columnNames) throws SQLException{
PreparedStatement statement= conn.prepareStatement(sql, columnNames);
putStatement(conn,statement);
return statement;
}
}
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