Remove postgresql jdbc files, per Peter.

1 files changed, 0 insertions, 744 deletions

diff --git a/src/interfaces/jdbc/postgresql/Connection.java b/src/interfaces/jdbc/postgresql/Connection.java
deleted file mode 100644
index 4d95a585f73..00000000000
--- a/src/interfaces/jdbc/postgresql/Connection.java
+++ /dev/null
@@ -1,744 +0,0 @@
-package postgresql;
-
-import java.io.*;
-import java.net.*;
-import java.sql.*;
-import java.util.*;
-import postgresql.Field;
-import postgresql.fastpath.*;
-import postgresql.largeobject.*;
-import postgresql.util.*;
-
-/**
- * $Id: Connection.java,v 1.20 1999/09/15 20:39:50 peter Exp $
- *
- * This abstract class is used by postgresql.Driver to open either the JDBC1 or
- * JDBC2 versions of the Connection class.
- *
- */
-public abstract class Connection
-{
-  // This is the network stream associated with this connection
-  public PG_Stream pg_stream;
-  
-  // This is set by postgresql.Statement.setMaxRows()
-  public int maxrows = 0;		// maximum no. of rows; 0 = unlimited
-  
-  private String PG_HOST;
-  private int PG_PORT;
-  private String PG_USER;
-  private String PG_PASSWORD;
-  private String PG_DATABASE;
-  private boolean PG_STATUS;
-  
-  public boolean CONNECTION_OK = true;
-  public boolean CONNECTION_BAD = false;
-  
-  public boolean autoCommit = true;
-  public boolean readOnly = false;
-  
-  public Driver this_driver;
-  private String this_url;
-  private String cursor = null;	// The positioned update cursor name
-  
-  // These are new for v6.3, they determine the current protocol versions
-  // supported by this version of the driver. They are defined in
-  // src/include/libpq/pqcomm.h
-  protected static final int PG_PROTOCOL_LATEST_MAJOR = 2;
-  protected static final int PG_PROTOCOL_LATEST_MINOR = 0;
-  private static final int SM_DATABASE	= 64;
-  private static final int SM_USER	= 32;
-  private static final int SM_OPTIONS	= 64;
-  private static final int SM_UNUSED	= 64;
-  private static final int SM_TTY	= 64;
-  
-  private static final int AUTH_REQ_OK       = 0;
-  private static final int AUTH_REQ_KRB4     = 1;
-  private static final int AUTH_REQ_KRB5     = 2;
-  private static final int AUTH_REQ_PASSWORD = 3;
-  private static final int AUTH_REQ_CRYPT    = 4;
-  
-  // New for 6.3, salt value for crypt authorisation
-  private String salt;
-  
-  // This is used by Field to cache oid -> names.
-  // It's here, because it's shared across this connection only.
-  // Hence it cannot be static within the Field class, because it would then
-  // be across all connections, which could be to different backends.
-  public Hashtable fieldCache = new Hashtable();
-  
-  // Now handle notices as warnings, so things like "show" now work
-  public SQLWarning firstWarning = null;
-    
-    // The PID an cancellation key we get from the backend process
-    public int pid;
-    public int ckey;
-    
-    /**
-     * This is called by Class.forName() from within postgresql.Driver
-     */
-    public Connection()
-    {
-    }
-    
-    /**
-     * This method actually opens the connection. It is called by Driver.
-     *
-     * @param host the hostname of the database back end
-     * @param port the port number of the postmaster process
-     * @param info a Properties[] thing of the user and password
-     * @param database the database to connect to
-     * @param u the URL of the connection
-     * @param d the Driver instantation of the connection
-     * @return a valid connection profile
-     * @exception SQLException if a database access error occurs
-     */
-    protected void openConnection(String host, int port, Properties info, String database, String url, Driver d) throws SQLException
-    {
-    // Throw an exception if the user or password properties are missing
-    // This occasionally occurs when the client uses the properties version
-    // of getConnection(), and is a common question on the email lists
-    if(info.getProperty("user")==null)
-      throw new PSQLException("postgresql.con.user");
-    if(info.getProperty("password")==null)
-      throw new PSQLException("postgresql.con.pass");
-    
-    this_driver = d;
-    this_url = new String(url);
-    PG_DATABASE = new String(database);
-    PG_PASSWORD = new String(info.getProperty("password"));
-    PG_USER = new String(info.getProperty("user"));
-    PG_PORT = port;
-    PG_HOST = new String(host);
-    PG_STATUS = CONNECTION_BAD;
-    
-    // Now make the initial connection
-    try
-      {
-	pg_stream = new PG_Stream(host, port);
-      } catch (ConnectException cex) {
-	// Added by Peter Mount <[email protected]>
-	// ConnectException is thrown when the connection cannot be made.
-	// we trap this an return a more meaningful message for the end user
-	throw new PSQLException ("postgresql.con.refused");
-      } catch (IOException e) {
-	throw new PSQLException ("postgresql.con.failed",e);
-      }
-      
-      // Now we need to construct and send a startup packet
-      try
-	{
-	  // Ver 6.3 code
-	  pg_stream.SendInteger(4+4+SM_DATABASE+SM_USER+SM_OPTIONS+SM_UNUSED+SM_TTY,4);
-	  pg_stream.SendInteger(PG_PROTOCOL_LATEST_MAJOR,2);
-	  pg_stream.SendInteger(PG_PROTOCOL_LATEST_MINOR,2);
-	  pg_stream.Send(database.getBytes(),SM_DATABASE);
-	  
-	  // This last send includes the unused fields
-	  pg_stream.Send(PG_USER.getBytes(),SM_USER+SM_OPTIONS+SM_UNUSED+SM_TTY);
-	  
-	  // now flush the startup packets to the backend
-	  pg_stream.flush();
-	  
-	  // Now get the response from the backend, either an error message
-	  // or an authentication request
-	  int areq = -1; // must have a value here
-	  do {
-	    int beresp = pg_stream.ReceiveChar();
-	    switch(beresp)
-	      {
-	      case 'E':
-		// An error occured, so pass the error message to the
-		// user.
-		//
-		// The most common one to be thrown here is:
-		// "User authentication failed"
-		//
-		throw new SQLException(pg_stream.ReceiveString(4096));
-		
-	      case 'R':
-		// Get the type of request
-		areq = pg_stream.ReceiveIntegerR(4);
-		
-		// Get the password salt if there is one
-		if(areq == AUTH_REQ_CRYPT) {
-		  byte[] rst = new byte[2];
-		  rst[0] = (byte)pg_stream.ReceiveChar();
-		  rst[1] = (byte)pg_stream.ReceiveChar();
-		  salt = new String(rst,0,2);
-		  DriverManager.println("Salt="+salt);
-		}
-		
-		// now send the auth packet
-		switch(areq)
-		  {
-		  case AUTH_REQ_OK:
-		    break;
-		    
-		  case AUTH_REQ_KRB4:
-		    DriverManager.println("postgresql: KRB4");
-		    throw new PSQLException("postgresql.con.kerb4");
-		    
-		  case AUTH_REQ_KRB5:
-		    DriverManager.println("postgresql: KRB5");
-		    throw new PSQLException("postgresql.con.kerb5");
-		    
-		  case AUTH_REQ_PASSWORD:
-		    DriverManager.println("postgresql: PASSWORD");
-		    pg_stream.SendInteger(5+PG_PASSWORD.length(),4);
-		    pg_stream.Send(PG_PASSWORD.getBytes());
-		    pg_stream.SendInteger(0,1);
-		    pg_stream.flush();
-		    break;
-		    
-		  case AUTH_REQ_CRYPT:
-		    DriverManager.println("postgresql: CRYPT");
-		    String crypted = UnixCrypt.crypt(salt,PG_PASSWORD);
-		    pg_stream.SendInteger(5+crypted.length(),4);
-		    pg_stream.Send(crypted.getBytes());
-		    pg_stream.SendInteger(0,1);
-		    pg_stream.flush();
-		    break;
-		    
-		  default:
-		    throw new PSQLException("postgresql.con.auth",new Integer(areq));
-		  }
-		break;
-		
-	      default:
-		throw new PSQLException("postgresql.con.authfail");
-	      }
-	    } while(areq != AUTH_REQ_OK);
-	  
-	} catch (IOException e) {
-	  throw new PSQLException("postgresql.con.failed",e);
-	}
-	
-
-      // As of protocol version 2.0, we should now receive the cancellation key and the pid
-      int beresp = pg_stream.ReceiveChar();
-      switch(beresp) {
-        case 'K':
-          pid = pg_stream.ReceiveInteger(4);
-          ckey = pg_stream.ReceiveInteger(4);
-          break;
-	case 'E':
-	case 'N':
-           throw new SQLException(pg_stream.ReceiveString(4096));
-        default:
-          throw new PSQLException("postgresql.con.setup");
-      }
-
-      // Expect ReadyForQuery packet
-      beresp = pg_stream.ReceiveChar();
-      switch(beresp) {
-        case 'Z':
-	   break;
-	case 'E':
-	case 'N':
-           throw new SQLException(pg_stream.ReceiveString(4096));
-        default:
-          throw new PSQLException("postgresql.con.setup");
-      }
-
-      // Originally we issued a SHOW DATESTYLE statement to find the databases default
-      // datestyle. However, this caused some problems with timestamps, so in 6.5, we
-      // went the way of ODBC, and set the connection to ISO.
-      //
-      // This may cause some clients to break when they assume anything other than ISO,
-      // but then - they should be using the proper methods ;-)
-      //
-      //
-      firstWarning = null;
-      
-      ExecSQL("set datestyle to 'ISO'");
-      
-      // Initialise object handling
-      initObjectTypes();
-      
-      // Mark the connection as ok, and cleanup
-      firstWarning = null;
-      PG_STATUS = CONNECTION_OK;
-    }
-    
-    // These methods used to be in the main Connection implementation. As they
-    // are common to all implementations (JDBC1 or 2), they are placed here.
-    // This should make it easy to maintain the two specifications.
-    
-    /**
-     * This adds a warning to the warning chain.
-     * @param msg message to add
-     */
-    public void addWarning(String msg)
-    {
-	DriverManager.println(msg);
-	
-	// Add the warning to the chain
-	if(firstWarning!=null)
-	    firstWarning.setNextWarning(new SQLWarning(msg));
-	else
-	    firstWarning = new SQLWarning(msg);
-	
-	// Now check for some specific messages
-	
-	// This is obsolete in 6.5, but I've left it in here so if we need to use this
-	// technique again, we'll know where to place it.
-	//
-	// This is generated by the SQL "show datestyle"
-	//if(msg.startsWith("NOTICE:") && msg.indexOf("DateStyle")>0) {
-	//// 13 is the length off "DateStyle is "
-	//msg = msg.substring(msg.indexOf("DateStyle is ")+13);
-	//  
-	//for(int i=0;i<dateStyles.length;i+=2)
-	//if(msg.startsWith(dateStyles[i]))
-	//currentDateStyle=i+1; // this is the index of the format
-	//}
-    }
-    
-    /**
-     * Send a query to the backend.  Returns one of the ResultSet
-     * objects.
-     *
-     * <B>Note:</B> there does not seem to be any method currently
-     * in existance to return the update count.
-     *
-     * @param sql the SQL statement to be executed
-     * @return a ResultSet holding the results
-     * @exception SQLException if a database error occurs
-     */
-    public java.sql.ResultSet ExecSQL(String sql) throws SQLException
-    {
-	// added Oct 7 1998 to give us thread safety.
-	synchronized(pg_stream) {
-	    
-	    Field[] fields = null;
-	    Vector tuples = new Vector();
-	    byte[] buf = new byte[sql.length()];
-	    int fqp = 0;
-	    boolean hfr = false;
-	    String recv_status = null, msg;
-		int update_count = 1;
-	    SQLException final_error = null;
-	    
-	    if (sql.length() > 8192)
-		throw new PSQLException("postgresql.con.toolong",sql);
-	    try
-		{
-		    pg_stream.SendChar('Q');
-		    buf = sql.getBytes();
-		    pg_stream.Send(buf);
-		    pg_stream.SendChar(0);
-		    pg_stream.flush();
-		} catch (IOException e) {
-		    throw new PSQLException("postgresql.con.ioerror",e);
-		}
-	    
-	    while (!hfr || fqp > 0)
-		{
-		    Object tup=null;	// holds rows as they are recieved
-		    
-		    int c = pg_stream.ReceiveChar();
-		    
-		    switch (c)
-			{
-			case 'A':	// Asynchronous Notify
-			    pid = pg_stream.ReceiveInteger(4);
-			    msg = pg_stream.ReceiveString(8192);
-			    break;
-			case 'B':	// Binary Data Transfer
-			    if (fields == null)
-				throw new PSQLException("postgresql.con.tuple");
-			    tup = pg_stream.ReceiveTuple(fields.length, true);
-			    // This implements Statement.setMaxRows()
-			    if(maxrows==0 || tuples.size()<maxrows)
-				tuples.addElement(tup);
-			    break;
-			case 'C':	// Command Status
-			    recv_status = pg_stream.ReceiveString(8192);
-				
-				// Now handle the update count correctly.
-				if(recv_status.startsWith("INSERT") || recv_status.startsWith("UPDATE")) {
-					try {
-						update_count = Integer.parseInt(recv_status.substring(1+recv_status.lastIndexOf(' ')));
-					} catch(NumberFormatException nfe) {
-						throw new PSQLException("postgresql.con.fathom",recv_status);
-					}
-				}
-			    if (fields != null)
-				hfr = true;
-			    else
-				{
-				    try
-					{
-					    pg_stream.SendChar('Q');
-					    pg_stream.SendChar(' ');
-					    pg_stream.SendChar(0);
-					    pg_stream.flush();
-					} catch (IOException e) {
-					    throw new PSQLException("postgresql.con.ioerror",e);
-					}
-				    fqp++;
-				}
-			    break;
-			case 'D':	// Text Data Transfer
-			    if (fields == null)
-				throw new PSQLException("postgresql.con.tuple");
-			    tup = pg_stream.ReceiveTuple(fields.length, false);
-			    // This implements Statement.setMaxRows()
-			    if(maxrows==0 || tuples.size()<maxrows)
-				tuples.addElement(tup);
-			    break;
-			case 'E':	// Error Message
-			    msg = pg_stream.ReceiveString(4096);
-			    final_error = new SQLException(msg);
-			    hfr = true;
-			    break;
-			case 'I':	// Empty Query
-			    int t = pg_stream.ReceiveChar();
-			    
-			    if (t != 0)
-				throw new PSQLException("postgresql.con.garbled");
-			    if (fqp > 0)
-				fqp--;
-			    if (fqp == 0)
-				hfr = true;
-			    break;
-			case 'N':	// Error Notification
-			    addWarning(pg_stream.ReceiveString(4096));
-			    break;
-			case 'P':	// Portal Name
-			    String pname = pg_stream.ReceiveString(8192);
-			    break;
-			case 'T':	// MetaData Field Description
-			    if (fields != null)
-				throw new PSQLException("postgresql.con.multres");
-			    fields = ReceiveFields();
-			    break;
-			case 'Z':       // backend ready for query, ignore for now :-)
-			    break;
-			default:
-			    throw new PSQLException("postgresql.con.type",new Character((char)c));
-			}
-		}
-	    if (final_error != null)
-		throw final_error;
-		
-	    return getResultSet(this, fields, tuples, recv_status, update_count);
-	}
-    }
-
-    /**
-     * Receive the field descriptions from the back end
-     *
-     * @return an array of the Field object describing the fields
-     * @exception SQLException if a database error occurs
-     */
-    private Field[] ReceiveFields() throws SQLException
-    {
-	int nf = pg_stream.ReceiveIntegerR(2), i;
-	Field[] fields = new Field[nf];
-	
-	for (i = 0 ; i < nf ; ++i)
-	    {
-		String typname = pg_stream.ReceiveString(8192);
-		int typid = pg_stream.ReceiveIntegerR(4);
-		int typlen = pg_stream.ReceiveIntegerR(2);
-		int typmod = pg_stream.ReceiveIntegerR(4);
-		fields[i] = new Field(this, typname, typid, typlen, typmod);
-	    }
-	return fields;
-    }
-    
-    /**
-     * In SQL, a result table can be retrieved through a cursor that
-     * is named.  The current row of a result can be updated or deleted
-     * using a positioned update/delete statement that references the
-     * cursor name.
-     *
-     * We support one cursor per connection.
-     *
-     * setCursorName sets the cursor name.
-     *
-     * @param cursor the cursor name
-     * @exception SQLException if a database access error occurs
-     */
-    public void setCursorName(String cursor) throws SQLException
-    {
-	this.cursor = cursor;
-    }
-    
-    /**
-     * getCursorName gets the cursor name.
-     *
-     * @return the current cursor name
-     * @exception SQLException if a database access error occurs
-     */
-    public String getCursorName() throws SQLException
-    {
-	return cursor;
-    }
-    
-    /**
-     * We are required to bring back certain information by
-     * the DatabaseMetaData class.  These functions do that.
-     *
-     * Method getURL() brings back the URL (good job we saved it)
-     *
-     * @return the url
-     * @exception SQLException just in case...
-     */
-    public String getURL() throws SQLException
-    {
-	return this_url;
-    }
-    
-    /**
-     * Method getUserName() brings back the User Name (again, we
-     * saved it)
-     *
-     * @return the user name
-     * @exception SQLException just in case...
-     */
-    public String getUserName() throws SQLException
-    {
-	return PG_USER;
-    }
-    
-    /**
-     * This returns the Fastpath API for the current connection.
-     *
-     * <p><b>NOTE:</b> This is not part of JDBC, but allows access to
-     * functions on the postgresql backend itself.
-     *
-     * <p>It is primarily used by the LargeObject API
-     *
-     * <p>The best way to use this is as follows:
-     *
-     * <p><pre>
-     * import postgresql.fastpath.*;
-     * ...
-     * Fastpath fp = ((postgresql.Connection)myconn).getFastpathAPI();
-     * </pre>
-     *
-     * <p>where myconn is an open Connection to postgresql.
-     *
-     * @return Fastpath object allowing access to functions on the postgresql
-     * backend.
-     * @exception SQLException by Fastpath when initialising for first time
-     */
-    public Fastpath getFastpathAPI() throws SQLException
-    {
-	if(fastpath==null)
-	    fastpath = new Fastpath(this,pg_stream);
-	return fastpath;
-    }
-    
-    // This holds a reference to the Fastpath API if already open
-    private Fastpath fastpath = null;
-    
-    /**
-     * This returns the LargeObject API for the current connection.
-     *
-     * <p><b>NOTE:</b> This is not part of JDBC, but allows access to
-     * functions on the postgresql backend itself.
-     *
-     * <p>The best way to use this is as follows:
-     *
-     * <p><pre>
-     * import postgresql.largeobject.*;
-     * ...
-     * LargeObjectManager lo = ((postgresql.Connection)myconn).getLargeObjectAPI();
-     * </pre>
-     *
-     * <p>where myconn is an open Connection to postgresql.
-     *
-     * @return LargeObject object that implements the API
-     * @exception SQLException by LargeObject when initialising for first time
-     */
-    public LargeObjectManager getLargeObjectAPI() throws SQLException
-    {
-	if(largeobject==null)
-	    largeobject = new LargeObjectManager(this);
-	return largeobject;
-    }
-    
-    // This holds a reference to the LargeObject API if already open
-    private LargeObjectManager largeobject = null;
-    
-    /**
-     * This method is used internally to return an object based around
-     * postgresql's more unique data types.
-     *
-     * <p>It uses an internal Hashtable to get the handling class. If the
-     * type is not supported, then an instance of postgresql.util.PGobject
-     * is returned.
-     *
-     * You can use the getValue() or setValue() methods to handle the returned
-     * object. Custom objects can have their own methods.
-     *
-     * In 6.4, this is extended to use the postgresql.util.Serialize class to
-     * allow the Serialization of Java Objects into the database without using
-     * Blobs. Refer to that class for details on how this new feature works.
-     *
-     * @return PGobject for this type, and set to value
-     * @exception SQLException if value is not correct for this type
-     * @see postgresql.util.Serialize
-     */
-    public Object getObject(String type,String value) throws SQLException
-    {
-	try {
-	    Object o = objectTypes.get(type);
-	    
-	    // If o is null, then the type is unknown, so check to see if type
-	    // is an actual table name. If it does, see if a Class is known that
-	    // can handle it
-	    if(o == null) {
-		Serialize ser = new Serialize(this,type);
-		objectTypes.put(type,ser);
-		return ser.fetch(Integer.parseInt(value));
-	    }
-	    
-	    // If o is not null, and it is a String, then its a class name that
-	    // extends PGobject.
-	    //
-	    // This is used to implement the postgresql unique types (like lseg,
-	    // point, etc).
-	    if(o instanceof String) {
-		// 6.3 style extending PG_Object
-		PGobject obj = null;
-		obj = (PGobject)(Class.forName((String)o).newInstance());
-		obj.setType(type);
-		obj.setValue(value);
-		return (Object)obj;
-	    } else {
-		// If it's an object, it should be an instance of our Serialize class
-		// If so, then call it's fetch method.
-		if(o instanceof Serialize)
-		    return ((Serialize)o).fetch(Integer.parseInt(value));
-	    }
-	} catch(SQLException sx) {
-	    // rethrow the exception. Done because we capture any others next
-	    sx.fillInStackTrace();
-	    throw sx;
-	} catch(Exception ex) {
-	    throw new PSQLException("postgresql.con.creobj",type,ex);
-	}
-	
-	// should never be reached
-	return null;
-    }
-    
-    /**
-     * This stores an object into the database.
-     * @param o Object to store
-     * @return OID of the new rectord
-     * @exception SQLException if value is not correct for this type
-     * @see postgresql.util.Serialize
-     */
-    public int putObject(Object o) throws SQLException
-    {
-	try {
-	    String type = o.getClass().getName();
-	    Object x = objectTypes.get(type);
-	    
-	    // If x is null, then the type is unknown, so check to see if type
-	    // is an actual table name. If it does, see if a Class is known that
-	    // can handle it
-	    if(x == null) {
-		Serialize ser = new Serialize(this,type);
-		objectTypes.put(type,ser);
-		return ser.store(o);
-	    }
-	    
-	    // If it's an object, it should be an instance of our Serialize class
-	    // If so, then call it's fetch method.
-	    if(x instanceof Serialize)
-		return ((Serialize)x).store(o);
-	    
-	    // Thow an exception because the type is unknown
-	    throw new PSQLException("postgresql.con.strobj");
-	    
-	} catch(SQLException sx) {
-	    // rethrow the exception. Done because we capture any others next
-	    sx.fillInStackTrace();
-	    throw sx;
-	} catch(Exception ex) {
-	    throw new PSQLException("postgresql.con.strobjex",ex);
-	}
-    }
-    
-    /**
-     * This allows client code to add a handler for one of postgresql's
-     * more unique data types.
-     *
-     * <p><b>NOTE:</b> This is not part of JDBC, but an extension.
-     *
-     * <p>The best way to use this is as follows:
-     *
-     * <p><pre>
-     * ...
-     * ((postgresql.Connection)myconn).addDataType("mytype","my.class.name");
-     * ...
-     * </pre>
-     *
-     * <p>where myconn is an open Connection to postgresql.
-     *
-     * <p>The handling class must extend postgresql.util.PGobject
-     *
-     * @see postgresql.util.PGobject
-     */
-    public void addDataType(String type,String name)
-    {
-	objectTypes.put(type,name);
-    }
-    
-    // This holds the available types
-    private Hashtable objectTypes = new Hashtable();
-    
-    // This array contains the types that are supported as standard.
-    //
-    // The first entry is the types name on the database, the second
-    // the full class name of the handling class.
-    //
-    private static final String defaultObjectTypes[][] = {
-	{"box",		"postgresql.geometric.PGbox"},
-	{"circle",	"postgresql.geometric.PGcircle"},
-	{"line",	"postgresql.geometric.PGline"},
-	{"lseg",	"postgresql.geometric.PGlseg"},
-	{"path",	"postgresql.geometric.PGpath"},
-	{"point",	"postgresql.geometric.PGpoint"},
-	{"polygon",	"postgresql.geometric.PGpolygon"},
-	{"money",	"postgresql.util.PGmoney"}
-    };
-    
-    // This initialises the objectTypes hashtable
-    private void initObjectTypes()
-    {
-	for(int i=0;i<defaultObjectTypes.length;i++)
-	    objectTypes.put(defaultObjectTypes[i][0],defaultObjectTypes[i][1]);
-    }
-    
-    // These are required by other common classes
-    public abstract java.sql.Statement createStatement() throws SQLException;
-    
-    /**
-     * This returns a resultset. It must be overridden, so that the correct
-     * version (from jdbc1 or jdbc2) are returned.
-     */
-    protected abstract java.sql.ResultSet getResultSet(postgresql.Connection conn, Field[] fields, Vector tuples, String status, int updateCount) throws SQLException;
-    
-    public abstract void close() throws SQLException;
-	
-    /**
-     * Overides finalize(). If called, it closes the connection.
-     *
-     * This was done at the request of Rachel Greenham
-     * <[email protected]> who hit a problem where multiple
-     * clients didn't close the connection, and once a fortnight enough
-     * clients were open to kill the postgres server.
-     */
-    public void finalize() throws Throwable
-    {
-	close();
-    }
-}