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Commit 80942283 authored by Olivier Bertrand's avatar Olivier Bertrand
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- Alternative versions of the java JdbcInterface 

  Some of them (ap/ds) enable connection to a DataSource
  added 'storage/connect/java/ap/JdbcInterface.class'
  added 'storage/connect/java/ap/JdbcInterface.java'
  added 'storage/connect/java/ds/JdbcInterface.class'
  added 'storage/connect/java/ds/JdbcInterface.java'
  added 'storage/connect/java/std/JdbcInterface.class'
  added 'storage/connect/java/std/JdbcInterface.java'
parent 0dae2932
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storage/connect/java/ap/JdbcInterface.class 0 → 100644
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storage/connect/java/ap/JdbcInterface.java 0 → 100644
View file @ 80942283
import java.math.*;
import java.sql.*;
import java.util.Collections;
import java.util.Hashtable;
import java.util.List;
import org.apache.commons.dbcp2.BasicDataSource;
public class JdbcInterface {
boolean DEBUG = false;
String Errmsg = "No error";
Connection conn = null;
DatabaseMetaData dbmd = null;
Statement stmt = null;
PreparedStatement pstmt = null;
ResultSet rs = null;
ResultSetMetaData rsmd = null;
static Hashtable<String,BasicDataSource> pool = new Hashtable<String, BasicDataSource>();
// === Constructors/finalize =========================================
public JdbcInterface() {
this(true);
} // end of default constructor
public JdbcInterface(boolean b) {
DEBUG = b;
} // end of constructor
private void SetErrmsg(Exception e) {
if (DEBUG)
System.out.println(e.getMessage());
Errmsg = e.toString();
} // end of SetErrmsg
private void SetErrmsg(String s) {
if (DEBUG)
System.out.println(s);
Errmsg = s;
} // end of SetErrmsg
public String GetErrmsg() {
String err = Errmsg;
Errmsg = "No error";
return err;
} // end of GetErrmsg
public int JdbcConnect(String[] parms, int fsize, boolean scrollable) {
int rc = 0;
String url = parms[1];
BasicDataSource ds = null;
if (url == null) {
SetErrmsg("URL cannot be null");
return -1;
} // endif url
try {
if ((ds = pool.get(url)) == null) {
ds = new BasicDataSource();
ds.setDriverClassName(parms[0]);
ds.setUrl(url);
ds.setUsername(parms[2]);
ds.setPassword(parms[3]);
pool.put(url, ds);
} // endif ds
// Get a connection from the data source
conn = ds.getConnection();
// Get the data base meta data object
dbmd = conn.getMetaData();
// Get a statement from the connection
if (scrollable)
stmt = conn.createStatement(java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE, java.sql.ResultSet.CONCUR_READ_ONLY);
else
stmt = conn.createStatement(java.sql.ResultSet.TYPE_FORWARD_ONLY, java.sql.ResultSet.CONCUR_READ_ONLY);
if (DEBUG)
System.out.println("Statement type = " + stmt.getResultSetType()
+ " concurrency = " + stmt.getResultSetConcurrency());
if (DEBUG) // Get the fetch size of a statement
System.out.println("Default fetch size = " + stmt.getFetchSize());
if (fsize != 0) {
// Set the fetch size
stmt.setFetchSize(fsize);
if (DEBUG)
System.out.println("New fetch size = " + stmt.getFetchSize());
} // endif fsize
} catch (SQLException se) {
SetErrmsg(se);
rc = -2;
} catch( Exception e ) {
SetErrmsg(e);
rc = -3;
} // end try/catch
return rc;
} // end of JdbcConnect
public int CreatePrepStmt(String sql) {
int rc = 0;
try {
pstmt = conn.prepareStatement(sql);
} catch (SQLException se) {
SetErrmsg(se);
rc = -1;
} catch (Exception e) {
SetErrmsg(e);
rc = -2;
} // end try/catch
return rc;
} // end of CreatePrepStmt
public void SetStringParm(int i, String s) {
try {
pstmt.setString(i, s);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetStringParm
public void SetIntParm(int i, int n) {
try {
pstmt.setInt(i, n);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetIntParm
public void SetShortParm(int i, short n) {
try {
pstmt.setShort(i, n);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetShortParm
public void SetBigintParm(int i, long n) {
try {
pstmt.setLong(i, n);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetBigintParm
public void SetFloatParm(int i, float f) {
try {
pstmt.setFloat(i, f);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetFloatParm
public void SetDoubleParm(int i, double d) {
try {
pstmt.setDouble(i, d);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetDoubleParm
public void SetTimestampParm(int i, Timestamp t) {
try {
pstmt.setTimestamp(i, t);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetTimestampParm
public int ExecutePrep() {
int n = -3;
if (pstmt != null) try {
n = pstmt.executeUpdate();
} catch (SQLException se) {
SetErrmsg(se);
n = -1;
} catch (Exception e) {
SetErrmsg(e);
n = -2;
} //end try/catch
return n;
} // end of ExecutePrep
public boolean ClosePrepStmt() {
boolean b = false;
if (pstmt != null) try {
pstmt.close();
pstmt = null;
} catch (SQLException se) {
SetErrmsg(se);
b = true;
} catch (Exception e) {
SetErrmsg(e);
b = true;
} // end try/catch
return b;
} // end of ClosePrepStmt
public int JdbcDisconnect() {
int rc = 0;
// Cancel pending statement
if (stmt != null)
try {
System.out.println("Cancelling statement");
stmt.cancel();
} catch(SQLException se) {
SetErrmsg(se);
rc += 1;
} // nothing more we can do
// Close the statement and the connection
if (rs != null)
try {
if (DEBUG)
System.out.println("Closing result set");
rs.close();
} catch(SQLException se) {
SetErrmsg(se);
rc = 2;
} // nothing more we can do
if (stmt != null)
try {
if (DEBUG)
System.out.println("Closing statement");
stmt.close();
} catch(SQLException se) {
SetErrmsg(se);
rc += 4;
} // nothing more we can do
ClosePrepStmt();
if (conn != null)
try {
if (DEBUG)
System.out.println("Closing connection");
conn.close();
} catch (SQLException se) {
SetErrmsg(se);
rc += 8;
} //end try/catch
if (DEBUG)
System.out.println("All closed");
return rc;
} // end of JdbcDisconnect
public int GetMaxValue(int n) {
int m = 0;
try {
switch (n) {
case 1: // Max columns in table
m = dbmd.getMaxColumnsInTable();
break;
case 2: // Max catalog name length
m = dbmd.getMaxCatalogNameLength();
break;
case 3: // Max schema name length
m = dbmd.getMaxSchemaNameLength();
break;
case 4: // Max table name length
m = dbmd.getMaxTableNameLength();
break;
case 5: // Max column name length
m = dbmd.getMaxColumnNameLength();
break;
} // endswitch n
} catch(Exception e) {
SetErrmsg(e);
m = -1;
} // end try/catch
return m;
} // end of GetMaxValue
public int GetColumns(String[] parms) {
int ncol = 0;
try {
if (rs != null) rs.close();
rs = dbmd.getColumns(parms[0], parms[1], parms[2], parms[3]);
if (rs != null) {
rsmd = rs.getMetaData();
ncol = rsmd.getColumnCount();
} // endif rs
} catch(SQLException se) {
SetErrmsg(se);
} // end try/catch
return ncol;
} // end of GetColumns
public int GetTables(String[] parms) {
int ncol = 0;
String[] typ = null;
if (parms[3] != null) {
typ = new String[1];
typ[0] = parms[3];
} // endif parms
try {
if (rs != null) rs.close();
rs = dbmd.getTables(parms[0], parms[1], parms[2], typ);
if (rs != null) {
rsmd = rs.getMetaData();
ncol = rsmd.getColumnCount();
} // endif rs
} catch(SQLException se) {
SetErrmsg(se);
} // end try/catch
return ncol;
} // end of GetColumns
public int Execute(String query) {
int n = 0;
if (DEBUG)
System.out.println("Executing '" + query + "'");
try {
boolean b = stmt.execute(query);
if (b == false) {
n = stmt.getUpdateCount();
if (rs != null) rs.close();
} // endif b
if (DEBUG)
System.out.println("Query '" + query + "' executed: n = " + n);
} catch (SQLException se) {
SetErrmsg(se);
n = -1;
} catch (Exception e) {
SetErrmsg(e);
n = -2;
} //end try/catch
return n;
} // end of Execute
public int GetResult() {
int ncol = 0;
try {
rs = stmt.getResultSet();
if (rs != null) {
rsmd = rs.getMetaData();
ncol = rsmd.getColumnCount();
if (DEBUG)
System.out.println("Result set has " + rsmd.getColumnCount() + " column(s)");
} // endif rs
} catch (SQLException se) {
SetErrmsg(se);
ncol = -1;
} catch (Exception e) {
SetErrmsg(e);
ncol = -2;
} //end try/catch
return ncol;
} // end of GetResult
public int ExecuteQuery(String query) {
int ncol = 0;
if (DEBUG)
System.out.println("Executing query '" + query + "'");
try {
rs = stmt.executeQuery(query);
rsmd = rs.getMetaData();
ncol = rsmd.getColumnCount();
if (DEBUG) {
System.out.println("Query '" + query + "' executed successfully");
System.out.println("Result set has " + rsmd.getColumnCount() + " column(s)");
} // endif DEBUG
} catch (SQLException se) {
SetErrmsg(se);
ncol = -1;
} catch (Exception e) {
SetErrmsg(e);
ncol = -2;
} //end try/catch
return ncol;
} // end of ExecuteQuery
public int ExecuteUpdate(String query) {
int n = 0;
if (DEBUG)
System.out.println("Executing update query '" + query + "'");
try {
n = stmt.executeUpdate(query);
if (DEBUG)
System.out.println("Update Query '" + query + "' executed: n = " + n);
} catch (SQLException se) {
SetErrmsg(se);
n = -1;
} catch (Exception e) {
SetErrmsg(e);
n = -2;
} //end try/catch
return n;
} // end of ExecuteUpdate
public int ReadNext() {
if (rs != null) {
try {
return rs.next() ? 1 : 0;
} catch (SQLException se) {
SetErrmsg(se);
return -1;
} //end try/catch
} else
return 0;
} // end of ReadNext
public boolean Fetch(int row) {
if (rs != null) {
try {
return rs.absolute(row);
} catch (SQLException se) {
SetErrmsg(se);
return false;
} //end try/catch
} else
return false;
} // end of Fetch
public String ColumnName(int n) {
if (rsmd == null) {
System.out.println("No result metadata");
} else try {
return rsmd.getColumnLabel(n);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of ColumnName
public int ColumnType(int n, String name) {
if (rsmd == null) {
System.out.println("No result metadata");
} else try {
if (n == 0)
n = rs.findColumn(name);
return rsmd.getColumnType(n);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return 666; // Not a type
} // end of ColumnType
public String ColumnDesc(int n, int[] val) {
if (rsmd == null) {
System.out.println("No result metadata");
return null;
} else try {
val[0] = rsmd.getColumnType(n);
val[1] = rsmd.getPrecision(n);
val[2] = rsmd.getScale(n);
val[3] = rsmd.isNullable(n);
return rsmd.getColumnLabel(n);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of ColumnDesc
public String StringField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getString(n) : rs.getString(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of StringField
public int IntField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getInt(n) : rs.getInt(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return 0;
} // end of IntField
public long BigintField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
BigDecimal bigDecimal = (n > 0) ? rs.getBigDecimal(n) : rs.getBigDecimal(name);
return bigDecimal != null ? bigDecimal.longValue() : 0;
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return 0;
} // end of BiginttField
public double DoubleField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getDouble(n) : rs.getDouble(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return 0.;
} // end of DoubleField
public float FloatField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getFloat(n) : rs.getFloat(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return 0;
} // end of FloatField
public boolean BooleanField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getBoolean(n) : rs.getBoolean(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return false;
} // end of BooleanField
public Date DateField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getDate(n) : rs.getDate(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of DateField
public Time TimeField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getTime(n) : rs.getTime(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of TimeField
public Timestamp TimestampField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getTimestamp(n) : rs.getTimestamp(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of TimestampField
public String ObjectField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getObject(n).toString() : rs.getObject(name).toString();
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of ObjectField
public int GetDrivers(String[] s, int mxs) {
int n = 0;
List<Driver> drivers = Collections.list(DriverManager.getDrivers());
int size = Math.min(mxs, drivers.size());
for (int i = 0; i < size; i++) {
Driver driver = (Driver)drivers.get(i);
// Get name of driver
s[n++] = driver.getClass().getName();
// Get version info
s[n++] = driver.getMajorVersion() + "." + driver.getMinorVersion();
s[n++] = driver.jdbcCompliant() ? "Yes" : "No";
s[n++] = driver.toString();
} // endfor i
return size;
} // end of GetDrivers
/**
* Adds the specified path to the java library path
* from Fahd Shariff blog
*
* @param pathToAdd the path to add
static public int addLibraryPath(String pathToAdd) {
System.out.println("jpath = " + pathToAdd);
try {
Field usrPathsField = ClassLoader.class.getDeclaredField("usr_paths");
usrPathsField.setAccessible(true);
//get array of paths
String[] paths = (String[])usrPathsField.get(null);
//check if the path to add is already present
for (String path : paths) {
System.out.println("path = " + path);
if (path.equals(pathToAdd))
return -5;
} // endfor path
//add the new path
String[] newPaths = Arrays.copyOf(paths, paths.length + 1);
newPaths[paths.length] = pathToAdd;
usrPathsField.set(null, newPaths);
System.setProperty("java.library.path",
System.getProperty("java.library.path") + File.pathSeparator + pathToAdd);
Field fieldSysPath = ClassLoader.class.getDeclaredField("sys_paths");
fieldSysPath.setAccessible(true);
fieldSysPath.set(null, null);
} catch (Exception e) {
SetErrmsg(e);
return -1;
} // end try/catch
return 0;
} // end of addLibraryPath
*/
} // end of class JdbcInterface
storage/connect/java/ds/JdbcInterface.class 0 → 100644
View file @ 80942283
This diff was suppressed by a .gitattributes entry.
storage/connect/java/ds/JdbcInterface.java 0 → 100644
View file @ 80942283
import java.math.*;
import java.sql.*;
import java.util.Collections;
import java.util.Hashtable;
import java.util.List;
import javax.sql.DataSource;
import org.mariadb.jdbc.MariaDbDataSource;
import org.postgresql.jdbc2.optional.PoolingDataSource;
import com.mysql.cj.jdbc.MysqlDataSource;
import oracle.jdbc.pool.OracleDataSource;
public class JdbcInterface {
boolean DEBUG = false;
String Errmsg = "No error";
Connection conn = null;
DatabaseMetaData dbmd = null;
Statement stmt = null;
PreparedStatement pstmt = null;
ResultSet rs = null;
ResultSetMetaData rsmd = null;
Hashtable<String,DataSource> dst = null;
// === Constructors/finalize =========================================
public JdbcInterface() {
this(true);
} // end of default constructor
public JdbcInterface(boolean b) {
DEBUG = b;
dst = new Hashtable<String, DataSource>();
} // end of constructor
private void SetErrmsg(Exception e) {
if (DEBUG)
System.out.println(e.getMessage());
Errmsg = e.toString();
} // end of SetErrmsg
private void SetErrmsg(String s) {
if (DEBUG)
System.out.println(s);
Errmsg = s;
} // end of SetErrmsg
public String GetErrmsg() {
String err = Errmsg;
Errmsg = "No error";
return err;
} // end of GetErrmsg
public int JdbcConnect(String[] parms, int fsize, boolean scrollable) {
int rc = 0;
String url = parms[1];
DataSource ds = null;
MysqlDataSource mds = null;
MariaDbDataSource ads = null;
OracleDataSource ods = null;
PoolingDataSource pds = null;
if (url == null) {
SetErrmsg("URL cannot be null");
return -1;
} // endif driver
try {
if ((ds = dst.get(url)) == null) {
if (url.toLowerCase().contains("mysql")) {
mds = new MysqlDataSource();
mds.setURL(url);
mds.setUser(parms[2]);
mds.setPassword(parms[3]);
ds = mds;
} else if (url.toLowerCase().contains("mariadb")) {
ads = new MariaDbDataSource();
ads.setUrl(url);
ads.setUser(parms[2]);
ads.setPassword(parms[3]);
ds = ads;
} else if (url.toLowerCase().contains("oracle")) {
ods = new OracleDataSource();
ods.setURL(url);
ods.setUser(parms[2]);
ods.setPassword(parms[3]);
ds = ods;
} else if (url.toLowerCase().contains("postgresql")) {
pds = new PoolingDataSource();
pds.setUrl(url);
pds.setUser(parms[2]);
pds.setPassword(parms[3]);
ds = pds;
} else {
SetErrmsg("Unsupported driver");
return -4;
} // endif driver
dst.put(url, ds);
} // endif ds
// Get a connection from the data source
conn = ds.getConnection();
// Get the data base meta data object
dbmd = conn.getMetaData();
// Get a statement from the connection
if (scrollable)
stmt = conn.createStatement(java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE, java.sql.ResultSet.CONCUR_READ_ONLY);
else
stmt = conn.createStatement(java.sql.ResultSet.TYPE_FORWARD_ONLY, java.sql.ResultSet.CONCUR_READ_ONLY);
if (DEBUG)
System.out.println("Statement type = " + stmt.getResultSetType()
+ " concurrency = " + stmt.getResultSetConcurrency());
if (DEBUG) // Get the fetch size of a statement
System.out.println("Default fetch size = " + stmt.getFetchSize());
if (fsize != 0) {
// Set the fetch size
stmt.setFetchSize(fsize);
if (DEBUG)
System.out.println("New fetch size = " + stmt.getFetchSize());
} // endif fsize
} catch (SQLException se) {
SetErrmsg(se);
rc = -2;
} catch( Exception e ) {
SetErrmsg(e);
rc = -3;
} // end try/catch
return rc;
} // end of JdbcConnect
public int CreatePrepStmt(String sql) {
int rc = 0;
try {
pstmt = conn.prepareStatement(sql);
} catch (SQLException se) {
SetErrmsg(se);
rc = -1;
} catch (Exception e) {
SetErrmsg(e);
rc = -2;
} // end try/catch
return rc;
} // end of CreatePrepStmt
public void SetStringParm(int i, String s) {
try {
pstmt.setString(i, s);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetStringParm
public void SetIntParm(int i, int n) {
try {
pstmt.setInt(i, n);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetIntParm
public void SetShortParm(int i, short n) {
try {
pstmt.setShort(i, n);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetShortParm
public void SetBigintParm(int i, long n) {
try {
pstmt.setLong(i, n);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetBigintParm
public void SetFloatParm(int i, float f) {
try {
pstmt.setFloat(i, f);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetFloatParm
public void SetDoubleParm(int i, double d) {
try {
pstmt.setDouble(i, d);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetDoubleParm
public void SetTimestampParm(int i, Timestamp t) {
try {
pstmt.setTimestamp(i, t);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetTimestampParm
public int ExecutePrep() {
int n = -3;
if (pstmt != null) try {
n = pstmt.executeUpdate();
} catch (SQLException se) {
SetErrmsg(se);
n = -1;
} catch (Exception e) {
SetErrmsg(e);
n = -2;
} //end try/catch
return n;
} // end of ExecutePrep
public boolean ClosePrepStmt() {
boolean b = false;
if (pstmt != null) try {
pstmt.close();
pstmt = null;
} catch (SQLException se) {
SetErrmsg(se);
b = true;
} catch (Exception e) {
SetErrmsg(e);
b = true;
} // end try/catch
return b;
} // end of ClosePrepStmt
public int JdbcDisconnect() {
int rc = 0;
// Cancel pending statement
if (stmt != null)
try {
System.out.println("Cancelling statement");
stmt.cancel();
} catch(SQLException se) {
SetErrmsg(se);
rc += 1;
} // nothing more we can do
// Close the statement and the connection
if (rs != null)
try {
if (DEBUG)
System.out.println("Closing result set");
rs.close();
} catch(SQLException se) {
SetErrmsg(se);
rc = 2;
} // nothing more we can do
if (stmt != null)
try {
if (DEBUG)
System.out.println("Closing statement");
stmt.close();
} catch(SQLException se) {
SetErrmsg(se);
rc += 4;
} // nothing more we can do
ClosePrepStmt();
if (conn != null)
try {
if (DEBUG)
System.out.println("Closing connection");
conn.close();
} catch (SQLException se) {
SetErrmsg(se);
rc += 8;
} //end try/catch
if (DEBUG)
System.out.println("All closed");
return rc;
} // end of JdbcDisconnect
public int GetMaxValue(int n) {
int m = 0;
try {
switch (n) {
case 1: // Max columns in table
m = dbmd.getMaxColumnsInTable();
break;
case 2: // Max catalog name length
m = dbmd.getMaxCatalogNameLength();
break;
case 3: // Max schema name length
m = dbmd.getMaxSchemaNameLength();
break;
case 4: // Max table name length
m = dbmd.getMaxTableNameLength();
break;
case 5: // Max column name length
m = dbmd.getMaxColumnNameLength();
break;
} // endswitch n
} catch(Exception e) {
SetErrmsg(e);
m = -1;
} // end try/catch
return m;
} // end of GetMaxValue
public int GetColumns(String[] parms) {
int ncol = 0;
try {
if (rs != null) rs.close();
rs = dbmd.getColumns(parms[0], parms[1], parms[2], parms[3]);
if (rs != null) {
rsmd = rs.getMetaData();
ncol = rsmd.getColumnCount();
} // endif rs
} catch(SQLException se) {
SetErrmsg(se);
} // end try/catch
return ncol;
} // end of GetColumns
public int GetTables(String[] parms) {
int ncol = 0;
String[] typ = null;
if (parms[3] != null) {
typ = new String[1];
typ[0] = parms[3];
} // endif parms
try {
if (rs != null) rs.close();
rs = dbmd.getTables(parms[0], parms[1], parms[2], typ);
if (rs != null) {
rsmd = rs.getMetaData();
ncol = rsmd.getColumnCount();
} // endif rs
} catch(SQLException se) {
SetErrmsg(se);
} // end try/catch
return ncol;
} // end of GetColumns
public int Execute(String query) {
int n = 0;
if (DEBUG)
System.out.println("Executing '" + query + "'");
try {
boolean b = stmt.execute(query);
if (b == false) {
n = stmt.getUpdateCount();
if (rs != null) rs.close();
} // endif b
if (DEBUG)
System.out.println("Query '" + query + "' executed: n = " + n);
} catch (SQLException se) {
SetErrmsg(se);
n = -1;
} catch (Exception e) {
SetErrmsg(e);
n = -2;
} //end try/catch
return n;
} // end of Execute
public int GetResult() {
int ncol = 0;
try {
rs = stmt.getResultSet();
if (rs != null) {
rsmd = rs.getMetaData();
ncol = rsmd.getColumnCount();
if (DEBUG)
System.out.println("Result set has " + rsmd.getColumnCount() + " column(s)");
} // endif rs
} catch (SQLException se) {
SetErrmsg(se);
ncol = -1;
} catch (Exception e) {
SetErrmsg(e);
ncol = -2;
} //end try/catch
return ncol;
} // end of GetResult
public int ExecuteQuery(String query) {
int ncol = 0;
if (DEBUG)
System.out.println("Executing query '" + query + "'");
try {
rs = stmt.executeQuery(query);
rsmd = rs.getMetaData();
ncol = rsmd.getColumnCount();
if (DEBUG) {
System.out.println("Query '" + query + "' executed successfully");
System.out.println("Result set has " + rsmd.getColumnCount() + " column(s)");
} // endif DEBUG
} catch (SQLException se) {
SetErrmsg(se);
ncol = -1;
} catch (Exception e) {
SetErrmsg(e);
ncol = -2;
} //end try/catch
return ncol;
} // end of ExecuteQuery
public int ExecuteUpdate(String query) {
int n = 0;
if (DEBUG)
System.out.println("Executing update query '" + query + "'");
try {
n = stmt.executeUpdate(query);
if (DEBUG)
System.out.println("Update Query '" + query + "' executed: n = " + n);
} catch (SQLException se) {
SetErrmsg(se);
n = -1;
} catch (Exception e) {
SetErrmsg(e);
n = -2;
} //end try/catch
return n;
} // end of ExecuteUpdate
public int ReadNext() {
if (rs != null) {
try {
return rs.next() ? 1 : 0;
} catch (SQLException se) {
SetErrmsg(se);
return -1;
} //end try/catch
} else
return 0;
} // end of ReadNext
public boolean Fetch(int row) {
if (rs != null) {
try {
return rs.absolute(row);
} catch (SQLException se) {
SetErrmsg(se);
return false;
} //end try/catch
} else
return false;
} // end of Fetch
public String ColumnName(int n) {
if (rsmd == null) {
System.out.println("No result metadata");
} else try {
return rsmd.getColumnLabel(n);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of ColumnName
public int ColumnType(int n, String name) {
if (rsmd == null) {
System.out.println("No result metadata");
} else try {
if (n == 0)
n = rs.findColumn(name);
return rsmd.getColumnType(n);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return 666; // Not a type
} // end of ColumnType
public String ColumnDesc(int n, int[] val) {
if (rsmd == null) {
System.out.println("No result metadata");
return null;
} else try {
val[0] = rsmd.getColumnType(n);
val[1] = rsmd.getPrecision(n);
val[2] = rsmd.getScale(n);
val[3] = rsmd.isNullable(n);
return rsmd.getColumnLabel(n);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of ColumnDesc
public String StringField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getString(n) : rs.getString(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of StringField
public int IntField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getInt(n) : rs.getInt(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return 0;
} // end of IntField
public long BigintField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
BigDecimal bigDecimal = (n > 0) ? rs.getBigDecimal(n) : rs.getBigDecimal(name);
return bigDecimal != null ? bigDecimal.longValue() : 0;
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return 0;
} // end of BiginttField
public double DoubleField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getDouble(n) : rs.getDouble(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return 0.;
} // end of DoubleField
public float FloatField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getFloat(n) : rs.getFloat(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return 0;
} // end of FloatField
public boolean BooleanField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getBoolean(n) : rs.getBoolean(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return false;
} // end of BooleanField
public Date DateField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getDate(n) : rs.getDate(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of DateField
public Time TimeField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getTime(n) : rs.getTime(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of TimeField
public Timestamp TimestampField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getTimestamp(n) : rs.getTimestamp(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of TimestampField
public String ObjectField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getObject(n).toString() : rs.getObject(name).toString();
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of ObjectField
public int GetDrivers(String[] s, int mxs) {
int n = 0;
List<Driver> drivers = Collections.list(DriverManager.getDrivers());
int size = Math.min(mxs, drivers.size());
for (int i = 0; i < size; i++) {
Driver driver = (Driver)drivers.get(i);
// Get name of driver
s[n++] = driver.getClass().getName();
// Get version info
s[n++] = driver.getMajorVersion() + "." + driver.getMinorVersion();
s[n++] = driver.jdbcCompliant() ? "Yes" : "No";
s[n++] = driver.toString();
} // endfor i
return size;
} // end of GetDrivers
/**
* Adds the specified path to the java library path
* from Fahd Shariff blog
*
* @param pathToAdd the path to add
static public int addLibraryPath(String pathToAdd) {
System.out.println("jpath = " + pathToAdd);
try {
Field usrPathsField = ClassLoader.class.getDeclaredField("usr_paths");
usrPathsField.setAccessible(true);
//get array of paths
String[] paths = (String[])usrPathsField.get(null);
//check if the path to add is already present
for (String path : paths) {
System.out.println("path = " + path);
if (path.equals(pathToAdd))
return -5;
} // endfor path
//add the new path
String[] newPaths = Arrays.copyOf(paths, paths.length + 1);
newPaths[paths.length] = pathToAdd;
usrPathsField.set(null, newPaths);
System.setProperty("java.library.path",
System.getProperty("java.library.path") + File.pathSeparator + pathToAdd);
Field fieldSysPath = ClassLoader.class.getDeclaredField("sys_paths");
fieldSysPath.setAccessible(true);
fieldSysPath.set(null, null);
} catch (Exception e) {
SetErrmsg(e);
return -1;
} // end try/catch
return 0;
} // end of addLibraryPath
*/
} // end of class JdbcInterface
storage/connect/java/std/JdbcInterface.class 0 → 100644
View file @ 80942283
This diff was suppressed by a .gitattributes entry.
storage/connect/java/std/JdbcInterface.java 0 → 100644
View file @ 80942283
import java.math.*;
import java.sql.*;
//import java.util.Arrays;
import java.util.Collections;
import java.util.List;
//import java.io.File;
//import java.lang.reflect.Field;
public class JdbcInterface {
boolean DEBUG = false;
String Errmsg = "No error";
Connection conn = null;
DatabaseMetaData dbmd = null;
Statement stmt = null;
PreparedStatement pstmt = null;
ResultSet rs = null;
ResultSetMetaData rsmd = null;
// === Constructors/finalize =========================================
public JdbcInterface() {
this(true);
} // end of default constructor
public JdbcInterface(boolean b) {
DEBUG = b;
} // end of constructor
private void SetErrmsg(Exception e) {
if (DEBUG)
System.out.println(e.getMessage());
Errmsg = e.toString();
} // end of SetErrmsg
public String GetErrmsg() {
String err = Errmsg;
Errmsg = "No error";
return err;
} // end of GetErrmsg
public int JdbcConnect(String[] parms, int fsize, boolean scrollable) {
int rc = 0;
if (DEBUG)
System.out.println("In JdbcInterface: driver=" + parms[0]);
try {
if (DEBUG)
System.out.println("In try block");
if (parms[0] != null && !parms[0].isEmpty()) {
if (DEBUG)
System.out.println("Loading class" + parms[0]);
Class.forName(parms[0]); //loads the driver
} // endif driver
if (DEBUG)
System.out.println("URL=" + parms[1]);
if (parms[2] != null && !parms[2].isEmpty()) {
if (DEBUG)
System.out.println("user=" + parms[2] + " pwd=" + parms[3]);
conn = DriverManager.getConnection(parms[1], parms[2], parms[3]);
} else
conn = DriverManager.getConnection(parms[1]);
if (DEBUG)
System.out.println("Connection " + conn.toString() + " established");
// Get the data base meta data object
dbmd = conn.getMetaData();
// Get a statement from the connection
if (scrollable)
stmt = conn.createStatement(java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE, java.sql.ResultSet.CONCUR_READ_ONLY);
else
stmt = conn.createStatement(java.sql.ResultSet.TYPE_FORWARD_ONLY, java.sql.ResultSet.CONCUR_READ_ONLY);
if (DEBUG)
System.out.println("Statement type = " + stmt.getResultSetType()
+ " concurrency = " + stmt.getResultSetConcurrency());
if (DEBUG) // Get the fetch size of a statement
System.out.println("Default fetch size = " + stmt.getFetchSize());
if (fsize != 0) {
// Set the fetch size
stmt.setFetchSize(fsize);
if (DEBUG)
System.out.println("New fetch size = " + stmt.getFetchSize());
} // endif fsize
} catch(ClassNotFoundException e) {
SetErrmsg(e);
rc = -1;
} catch (SQLException se) {
SetErrmsg(se);
rc = -2;
} catch( Exception e ) {
SetErrmsg(e);
rc = -3;
} // end try/catch
return rc;
} // end of JdbcConnect
public int CreatePrepStmt(String sql) {
int rc = 0;
try {
pstmt = conn.prepareStatement(sql);
} catch (SQLException se) {
SetErrmsg(se);
rc = -1;
} catch (Exception e) {
SetErrmsg(e);
rc = -2;
} // end try/catch
return rc;
} // end of CreatePrepStmt
public void SetStringParm(int i, String s) {
try {
pstmt.setString(i, s);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetStringParm
public void SetIntParm(int i, int n) {
try {
pstmt.setInt(i, n);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetIntParm
public void SetShortParm(int i, short n) {
try {
pstmt.setShort(i, n);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetShortParm
public void SetBigintParm(int i, long n) {
try {
pstmt.setLong(i, n);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetBigintParm
public void SetFloatParm(int i, float f) {
try {
pstmt.setFloat(i, f);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetFloatParm
public void SetDoubleParm(int i, double d) {
try {
pstmt.setDouble(i, d);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetDoubleParm
public void SetTimestampParm(int i, Timestamp t) {
try {
pstmt.setTimestamp(i, t);
} catch (Exception e) {
SetErrmsg(e);
} // end try/catch
} // end of SetTimestampParm
public int ExecutePrep() {
int n = -3;
if (pstmt != null) try {
n = pstmt.executeUpdate();
} catch (SQLException se) {
SetErrmsg(se);
n = -1;
} catch (Exception e) {
SetErrmsg(e);
n = -2;
} //end try/catch
return n;
} // end of ExecutePrep
public boolean ClosePrepStmt() {
boolean b = false;
if (pstmt != null) try {
pstmt.close();
pstmt = null;
} catch (SQLException se) {
SetErrmsg(se);
b = true;
} catch (Exception e) {
SetErrmsg(e);
b = true;
} // end try/catch
return b;
} // end of ClosePrepStmt
public int JdbcDisconnect() {
int rc = 0;
// Cancel pending statement
if (stmt != null)
try {
System.out.println("Cancelling statement");
stmt.cancel();
} catch(SQLException se) {
SetErrmsg(se);
rc += 1;
} // nothing more we can do
// Close the statement and the connection
if (rs != null)
try {
if (DEBUG)
System.out.println("Closing result set");
rs.close();
} catch(SQLException se) {
SetErrmsg(se);
rc = 2;
} // nothing more we can do
if (stmt != null)
try {
if (DEBUG)
System.out.println("Closing statement");
stmt.close();
} catch(SQLException se) {
SetErrmsg(se);
rc += 4;
} // nothing more we can do
ClosePrepStmt();
if (conn != null)
try {
if (DEBUG)
System.out.println("Closing connection");
conn.close();
} catch (SQLException se) {
SetErrmsg(se);
rc += 8;
} //end try/catch
if (DEBUG)
System.out.println("All closed");
return rc;
} // end of JdbcDisconnect
public int GetMaxValue(int n) {
int m = 0;
try {
switch (n) {
case 1: // Max columns in table
m = dbmd.getMaxColumnsInTable();
break;
case 2: // Max catalog name length
m = dbmd.getMaxCatalogNameLength();
break;
case 3: // Max schema name length
m = dbmd.getMaxSchemaNameLength();
break;
case 4: // Max table name length
m = dbmd.getMaxTableNameLength();
break;
case 5: // Max column name length
m = dbmd.getMaxColumnNameLength();
break;
} // endswitch n
} catch(Exception e) {
SetErrmsg(e);
m = -1;
} // end try/catch
return m;
} // end of GetMaxValue
public int GetColumns(String[] parms) {
int ncol = 0;
try {
if (rs != null) rs.close();
rs = dbmd.getColumns(parms[0], parms[1], parms[2], parms[3]);
if (rs != null) {
rsmd = rs.getMetaData();
ncol = rsmd.getColumnCount();
} // endif rs
} catch(SQLException se) {
SetErrmsg(se);
} // end try/catch
return ncol;
} // end of GetColumns
public int GetTables(String[] parms) {
int ncol = 0;
String[] typ = null;
if (parms[3] != null) {
typ = new String[1];
typ[0] = parms[3];
} // endif parms
try {
if (rs != null) rs.close();
rs = dbmd.getTables(parms[0], parms[1], parms[2], typ);
if (rs != null) {
rsmd = rs.getMetaData();
ncol = rsmd.getColumnCount();
} // endif rs
} catch(SQLException se) {
SetErrmsg(se);
} // end try/catch
return ncol;
} // end of GetColumns
public int Execute(String query) {
int n = 0;
if (DEBUG)
System.out.println("Executing '" + query + "'");
try {
boolean b = stmt.execute(query);
if (b == false) {
n = stmt.getUpdateCount();
if (rs != null) rs.close();
} // endif b
if (DEBUG)
System.out.println("Query '" + query + "' executed: n = " + n);
} catch (SQLException se) {
SetErrmsg(se);
n = -1;
} catch (Exception e) {
SetErrmsg(e);
n = -2;
} //end try/catch
return n;
} // end of Execute
public int GetResult() {
int ncol = 0;
try {
rs = stmt.getResultSet();
if (rs != null) {
rsmd = rs.getMetaData();
ncol = rsmd.getColumnCount();
if (DEBUG)
System.out.println("Result set has " + rsmd.getColumnCount() + " column(s)");
} // endif rs
} catch (SQLException se) {
SetErrmsg(se);
ncol = -1;
} catch (Exception e) {
SetErrmsg(e);
ncol = -2;
} //end try/catch
return ncol;
} // end of GetResult
public int ExecuteQuery(String query) {
int ncol = 0;
if (DEBUG)
System.out.println("Executing query '" + query + "'");
try {
rs = stmt.executeQuery(query);
rsmd = rs.getMetaData();
ncol = rsmd.getColumnCount();
if (DEBUG) {
System.out.println("Query '" + query + "' executed successfully");
System.out.println("Result set has " + rsmd.getColumnCount() + " column(s)");
} // endif DEBUG
} catch (SQLException se) {
SetErrmsg(se);
ncol = -1;
} catch (Exception e) {
SetErrmsg(e);
ncol = -2;
} //end try/catch
return ncol;
} // end of ExecuteQuery
public int ExecuteUpdate(String query) {
int n = 0;
if (DEBUG)
System.out.println("Executing update query '" + query + "'");
try {
n = stmt.executeUpdate(query);
if (DEBUG)
System.out.println("Update Query '" + query + "' executed: n = " + n);
} catch (SQLException se) {
SetErrmsg(se);
n = -1;
} catch (Exception e) {
SetErrmsg(e);
n = -2;
} //end try/catch
return n;
} // end of ExecuteUpdate
public int ReadNext() {
if (rs != null) {
try {
return rs.next() ? 1 : 0;
} catch (SQLException se) {
SetErrmsg(se);
return -1;
} //end try/catch
} else
return 0;
} // end of ReadNext
public boolean Fetch(int row) {
if (rs != null) {
try {
return rs.absolute(row);
} catch (SQLException se) {
SetErrmsg(se);
return false;
} //end try/catch
} else
return false;
} // end of Fetch
public String ColumnName(int n) {
if (rsmd == null) {
System.out.println("No result metadata");
} else try {
return rsmd.getColumnLabel(n);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of ColumnName
public int ColumnType(int n, String name) {
if (rsmd == null) {
System.out.println("No result metadata");
} else try {
if (n == 0)
n = rs.findColumn(name);
return rsmd.getColumnType(n);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return 666; // Not a type
} // end of ColumnType
public String ColumnDesc(int n, int[] val) {
if (rsmd == null) {
System.out.println("No result metadata");
return null;
} else try {
val[0] = rsmd.getColumnType(n);
val[1] = rsmd.getPrecision(n);
val[2] = rsmd.getScale(n);
val[3] = rsmd.isNullable(n);
return rsmd.getColumnLabel(n);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of ColumnDesc
public String StringField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getString(n) : rs.getString(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of StringField
public int IntField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getInt(n) : rs.getInt(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return 0;
} // end of IntField
public long BigintField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
BigDecimal bigDecimal = (n > 0) ? rs.getBigDecimal(n) : rs.getBigDecimal(name);
return bigDecimal != null ? bigDecimal.longValue() : 0;
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return 0;
} // end of BiginttField
public double DoubleField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getDouble(n) : rs.getDouble(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return 0.;
} // end of DoubleField
public float FloatField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getFloat(n) : rs.getFloat(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return 0;
} // end of FloatField
public boolean BooleanField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getBoolean(n) : rs.getBoolean(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return false;
} // end of BooleanField
public Date DateField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getDate(n) : rs.getDate(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of DateField
public Time TimeField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getTime(n) : rs.getTime(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of TimeField
public Timestamp TimestampField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getTimestamp(n) : rs.getTimestamp(name);
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of TimestampField
public String ObjectField(int n, String name) {
if (rs == null) {
System.out.println("No result set");
} else try {
return (n > 0) ? rs.getObject(n).toString() : rs.getObject(name).toString();
} catch (SQLException se) {
SetErrmsg(se);
} //end try/catch
return null;
} // end of ObjectField
public int GetDrivers(String[] s, int mxs) {
int n = 0;
List<Driver> drivers = Collections.list(DriverManager.getDrivers());
int size = Math.min(mxs, drivers.size());
for (int i = 0; i < size; i++) {
Driver driver = (Driver)drivers.get(i);
// Get name of driver
s[n++] = driver.getClass().getName();
// Get version info
s[n++] = driver.getMajorVersion() + "." + driver.getMinorVersion();
s[n++] = driver.jdbcCompliant() ? "Yes" : "No";
s[n++] = driver.toString();
} // endfor i
return size;
} // end of GetDrivers
/**
* Adds the specified path to the java library path
* from Fahd Shariff blog
*
* @param pathToAdd the path to add
static public int addLibraryPath(String pathToAdd) {
System.out.println("jpath = " + pathToAdd);
try {
Field usrPathsField = ClassLoader.class.getDeclaredField("usr_paths");
usrPathsField.setAccessible(true);
//get array of paths
String[] paths = (String[])usrPathsField.get(null);
//check if the path to add is already present
for (String path : paths) {
System.out.println("path = " + path);
if (path.equals(pathToAdd))
return -5;
} // endfor path
//add the new path
String[] newPaths = Arrays.copyOf(paths, paths.length + 1);
newPaths[paths.length] = pathToAdd;
usrPathsField.set(null, newPaths);
System.setProperty("java.library.path",
System.getProperty("java.library.path") + File.pathSeparator + pathToAdd);
Field fieldSysPath = ClassLoader.class.getDeclaredField("sys_paths");
fieldSysPath.setAccessible(true);
fieldSysPath.set(null, null);
} catch (Exception e) {
SetErrmsg(e);
return -1;
} // end try/catch
return 0;
} // end of addLibraryPath
*/
} // end of class JdbcInterface
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