/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.sql;
import com.caucho.env.meter.ActiveTimeSensor;
import com.caucho.util.L10N;
import java.sql.*;
import java.util.ArrayList;
import java.util.Map;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Adapts the JDBC 2.0 connection pooling and XA support for database drivers
* which don't understand it.
*
* <p>Closing the connection will return the real connection to the pool
* and close any statements.
*/
public class UserConnection implements java.sql.Connection {
protected static final Logger log
= Logger.getLogger(UserConnection.class.getName());
protected static final L10N L = new L10N(UserConnection.class);
// The parent XAConnectionAdapter
private ManagedConnectionImpl _mConn;
// Maximum statements saved for automatic closing
private Statement _statement;
// ArrayList of all the statements created by this connection
private ArrayList<Statement> _statements;
/**
* Creates a new PooledConnection.
*
* @param pool the pool the connection belongs to.
* @param conn the underlying connection.
*/
UserConnection(ManagedConnectionImpl mConn)
{
if (mConn == null || mConn.getDriverConnection() == null)
throw new NullPointerException();
_mConn = mConn;
}
/**
* Returns the underlying connection.
*/
public Connection getConnection()
throws SQLException
{
Connection conn = getDriverConnection();
if (conn instanceof com.caucho.sql.spy.SpyConnection)
conn = ((com.caucho.sql.spy.SpyConnection)conn).getConnection();
return conn;
}
ActiveTimeSensor getTimeProbe()
{
return _mConn.getDBPool().getTimeProbe();
}
public Class<?> getDriverClass()
{
return getMConn().getDriverClass();
}
public String getURL()
{
return getMConn().getDBPool().getURL();
}
/**
* Associates with a different mConn.
*/
void associate(ManagedConnectionImpl mConn)
{
_mConn = mConn;
}
/**
* JDBC api to create a new statement. Any SQL exception thrown here
* will make the connection invalid, i.e. it can't be put back into
* the pool.
*
* @return a new JDBC statement.
*/
@Override
public Statement createStatement()
throws SQLException
{
Statement stmt;
Connection conn = getDriverConnection();
try {
stmt = conn.createStatement();
} catch (RuntimeException e) {
onFatalException(e);
throw e;
} catch (SQLException e) {
onFatalException(e);
throw e;
}
addStatement(stmt);
if (_mConn.isWrapStatements())
return new UserStatement(this, stmt);
else
return stmt;
}
/**
* JDBC api to create a new statement. Any SQL exception thrown here
* will make the connection invalid, i.e. it can't be put back into
* the pool.
*
* @return a new JDBC statement.
*/
@Override
public Statement createStatement(int resultSetType, int resultSetConcurrency)
throws SQLException
{
Statement stmt;
Connection conn = getDriverConnection();
try {
stmt = conn.createStatement(resultSetType, resultSetConcurrency);
} catch (SQLException e) {
onFatalException(e);
throw e;
} catch (RuntimeException e) {
onFatalException(e);
throw e;
}
addStatement(stmt);
if (_mConn.isWrapStatements())
return new UserStatement(this, stmt);
else
return stmt;
}
/**
* Creates a statement.
*/
@Override
public Statement createStatement(int resultSetType,
int resultSetConcurrency,
int resultSetHoldability)
throws SQLException
{
Statement stmt;
Connection conn = getDriverConnection();
try {
stmt = conn.createStatement(resultSetType,
resultSetConcurrency,
resultSetHoldability);
} catch (SQLException e) {
onFatalException(e);
throw e;
} catch (RuntimeException e) {
onFatalException(e);
throw e;
}
addStatement(stmt);
if (_mConn.isWrapStatements())
return new UserStatement(this, stmt);
else
return stmt;
}
/**
* Returns a prepared statement with the given sql.
*
* @param sql the prepared sql.
*/
@Override
public PreparedStatement prepareStatement(String sql)
throws SQLException
{
PreparedStatement stmt;
if (getDriverConnection() == null) {
fatalEvent();
throw new SQLException(L.l("can't create statement from closed connection."));
}
try {
stmt = getMConn().prepareStatement(this, sql);
} catch (SQLException e) {
onFatalException(e);
throw e;
} catch (RuntimeException e) {
onFatalException(e);
throw e;
}
addStatement(stmt);
if (_mConn.isWrapStatements())
return new UserPreparedStatement(this, stmt);
else
return stmt;
}
/**
* Returns a prepared statement with the given sql.
*
* @param sql the prepared sql.
*/
@Override
public PreparedStatement prepareStatement(String sql,
int resultSetType,
int resultSetConcurrency)
throws SQLException
{
PreparedStatement stmt;
if (getDriverConnection() == null) {
fatalEvent();
throw new SQLException(L.l("can't create statement from closed connection."));
}
try {
stmt = getDriverConnection().prepareStatement(sql, resultSetType, resultSetConcurrency);
} catch (SQLException e) {
onFatalException(e);
throw e;
} catch (RuntimeException e) {
onFatalException(e);
throw e;
}
addStatement(stmt);
if (_mConn.isWrapStatements())
return new UserPreparedStatement(this, stmt);
else
return stmt;
}
/**
* Returns a prepared statement with the given sql.
*
* @param sql the prepared sql.
*/
@Override
public PreparedStatement prepareStatement(String sql,
int resultSetType,
int resultSetConcurrency,
int resultSetHoldability)
throws SQLException
{
PreparedStatement stmt;
if (getDriverConnection() == null) {
fatalEvent();
throw new SQLException(L.l("can't create statement from closed connection."));
}
try {
stmt = getDriverConnection().prepareStatement(sql,
resultSetType,
resultSetConcurrency,
resultSetHoldability);
} catch (SQLException e) {
onFatalException(e);
throw e;
} catch (RuntimeException e) {
onFatalException(e);
throw e;
}
addStatement(stmt);
if (_mConn.isWrapStatements())
return new UserPreparedStatement(this, stmt);
else
return stmt;
}
/**
* Returns a prepared statement with the given sql.
*
* @param sql the prepared sql.
*/
@Override
public PreparedStatement prepareStatement(String sql,
int resultSetType)
throws SQLException
{
PreparedStatement stmt;
if (getDriverConnection() == null) {
fatalEvent();
throw new SQLException(L.l("can't create statement from closed connection."));
}
try {
stmt = getMConn().prepareStatement(this, sql, resultSetType);
} catch (SQLException e) {
onFatalException(e);
throw e;
} catch (RuntimeException e) {
onFatalException(e);
throw e;
}
if (stmt == null)
throw new IllegalStateException(L.l("prepareStatement returned empty SQL\n{0}",
sql));
addStatement(stmt);
if (_mConn.isWrapStatements())
return new UserPreparedStatement(this, stmt);
else
return stmt;
}
/**
* Returns a prepared statement with the given sql.
*
* @param sql the prepared sql.
*/
@Override
public PreparedStatement prepareStatement(String sql,
int []columnIndexes)
throws SQLException
{
PreparedStatement stmt;
if (getDriverConnection() == null) {
fatalEvent();
throw new SQLException(L.l("can't create statement from closed connection."));
}
try {
stmt = getDriverConnection().prepareStatement(sql, columnIndexes);
} catch (SQLException e) {
onFatalException(e);
throw e;
} catch (RuntimeException e) {
onFatalException(e);
throw e;
}
addStatement(stmt);
if (_mConn.isWrapStatements())
return new UserPreparedStatement(this, stmt);
else
return stmt;
}
/**
* Returns a prepared statement with the given sql.
*
* @param sql the prepared sql.
*/
@Override
public PreparedStatement prepareStatement(String sql,
String []columnNames)
throws SQLException
{
PreparedStatement stmt;
if (getDriverConnection() == null) {
fatalEvent();
throw new SQLException(L.l("can't create statement from closed connection."));
}
try {
stmt = getDriverConnection().prepareStatement(sql, columnNames);
} catch (SQLException e) {
onFatalException(e);
throw e;
} catch (RuntimeException e) {
onFatalException(e);
throw e;
}
addStatement(stmt);
if (_mConn.isWrapStatements())
return new UserPreparedStatement(this, stmt);
else
return stmt;
}
@Override
public CallableStatement prepareCall(String sql, int resultSetType,
int resultSetConcurrency)
throws SQLException
{
CallableStatement stmt;
if (getDriverConnection() == null) {
fatalEvent();
throw new SQLException(L.l("can't create statement from closed connection."));
}
try {
stmt = getDriverConnection().prepareCall(sql, resultSetType, resultSetConcurrency);
} catch (SQLException e) {
onFatalException(e);
throw e;
} catch (RuntimeException e) {
onFatalException(e);
throw e;
}
addStatement(stmt);
if (_mConn.isWrapStatements())
return new UserCallableStatement(this, stmt);
else
return stmt;
}
@Override
public CallableStatement prepareCall(String sql)
throws SQLException
{
CallableStatement stmt;
if (getDriverConnection() == null) {
fatalEvent();
throw new SQLException(L.l("can't create statement from closed connection."));
}
try {
stmt = getDriverConnection().prepareCall(sql);
} catch (SQLException e) {
onFatalException(e);
throw e;
} catch (RuntimeException e) {
onFatalException(e);
throw e;
}
addStatement(stmt);
if (_mConn.isWrapStatements())
return new UserCallableStatement(this, stmt);
else
return stmt;
}
@Override
public CallableStatement prepareCall(String sql,
int resultSetType,
int resultSetConcurrency,
int resultSetHoldability)
throws SQLException
{
CallableStatement stmt;
if (getDriverConnection() == null) {
fatalEvent();
throw new SQLException(L.l("can't create statement from closed connection."));
}
try {
stmt = getDriverConnection().prepareCall(sql,
resultSetType,
resultSetConcurrency,
resultSetHoldability);
} catch (SQLException e) {
onFatalException(e);
throw e;
} catch (RuntimeException e) {
onFatalException(e);
throw e;
}
addStatement(stmt);
if (_mConn.isWrapStatements())
return new UserCallableStatement(this, stmt);
else
return stmt;
}
/**
* JDBC api to return the connection's catalog.
*
* @return the JDBC catalog.
*/
@Override
public String getCatalog()
throws SQLException
{
try {
return getDriverConnection().getCatalog();
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
/**
* Sets the JDBC catalog.
*/
@Override
public void setCatalog(String catalog)
throws SQLException
{
try {
getMConn().setCatalog(catalog);
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
/**
* Gets the connection's metadata.
*/
@Override
public DatabaseMetaData getMetaData()
throws SQLException
{
try {
return getDriverConnection().getMetaData();
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
/**
* Returns the connection's type map.
*/
@Override
public Map<String,Class<?>> getTypeMap()
throws SQLException
{
try {
return getDriverConnection().getTypeMap();
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
/**
* Sets the connection's type map.
*/
@Override
public void setTypeMap(Map<String,Class<?>> map)
throws SQLException
{
try {
getMConn().setTypeMap(map);
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
/**
* Calls the nativeSQL method for the connection.
*/
@Override
public String nativeSQL(String sql)
throws SQLException
{
try {
return getDriverConnection().nativeSQL(sql);
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public int getTransactionIsolation()
throws SQLException
{
try {
return getDriverConnection().getTransactionIsolation();
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public void setTransactionIsolation(int isolation)
throws SQLException
{
try {
getMConn().setTransactionIsolation(isolation);
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public SQLWarning getWarnings()
throws SQLException
{
try {
Connection conn = getDriverConnection();
if (conn != null)
return conn.getWarnings();
else
return null;
} catch (SQLException e) {
onFatalException(e);
throw e;
} catch (RuntimeException e) {
onFatalException(e);
throw e;
}
}
@Override
public void clearWarnings()
throws SQLException
{
try {
Connection conn = getDriverConnection();
if (conn != null)
conn.clearWarnings();
} catch (SQLException e) {
onFatalException(e);
throw e;
} catch (RuntimeException e) {
onFatalException(e);
throw e;
}
}
@Override
public void setReadOnly(boolean readOnly)
throws SQLException
{
try {
getMConn().setReadOnly(readOnly);
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public boolean isReadOnly()
throws SQLException
{
try {
return getDriverConnection().isReadOnly();
} catch (SQLException e) {
onFatalException(e);
throw e;
} catch (RuntimeException e) {
onFatalException(e);
throw e;
}
}
@Override
public boolean getAutoCommit()
throws SQLException
{
try {
return getDriverConnection().getAutoCommit();
} catch (SQLException e) {
onFatalException(e);
throw e;
} catch (RuntimeException e) {
onFatalException(e);
throw e;
}
}
@Override
public void setAutoCommit(boolean autoCommit)
throws SQLException
{
try {
getMConn().setAutoCommit(autoCommit);
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public void commit()
throws SQLException
{
try {
Connection conn = getDriverConnection();
if (conn != null)
conn.commit();
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public void rollback()
throws SQLException
{
try {
Connection conn = getDriverConnection();
if (conn != null)
conn.rollback();
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
public void setHoldability(int hold)
throws SQLException
{
try {
getDriverConnection().setHoldability(hold);
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public int getHoldability()
throws SQLException
{
try {
return getDriverConnection().getHoldability();
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public Savepoint setSavepoint()
throws SQLException
{
try {
return getDriverConnection().setSavepoint();
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public Savepoint setSavepoint(String name)
throws SQLException
{
try {
return getDriverConnection().setSavepoint(name);
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public void releaseSavepoint(Savepoint savepoint)
throws SQLException
{
try {
getDriverConnection().releaseSavepoint(savepoint);
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public void rollback(Savepoint savepoint)
throws SQLException
{
try {
getDriverConnection().rollback(savepoint);
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public Clob createClob()
throws SQLException
{
try {
return getDriverConnection().createClob();
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public Blob createBlob()
throws SQLException
{
try {
return getDriverConnection().createBlob();
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public NClob createNClob()
throws SQLException
{
try {
return getDriverConnection().createNClob();
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public SQLXML createSQLXML()
throws SQLException
{
try {
return getDriverConnection().createSQLXML();
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public boolean isValid(int timeout)
throws SQLException
{
try {
return getDriverConnection().isValid(timeout);
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public void setClientInfo(String name, String value)
throws SQLClientInfoException
{
try {
getDriverConnection().setClientInfo(name, value);
} catch (SQLClientInfoException e) {
onSqlException(e);
throw e;
} catch (SQLException e) {
onSqlException(e);
throw new RuntimeException(e);
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public void setClientInfo(Properties properties)
throws SQLClientInfoException
{
try {
getDriverConnection().setClientInfo(properties);
} catch (SQLClientInfoException e) {
onSqlException(e);
throw e;
} catch (SQLException e) {
onSqlException(e);
throw new RuntimeException(e);
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public String getClientInfo(String name)
throws SQLException
{
try {
return getDriverConnection().getClientInfo(name);
} catch (SQLClientInfoException e) {
onSqlException(e);
throw e;
} catch (SQLException e) {
onSqlException(e);
throw new RuntimeException(e);
} catch (RuntimeException e) {
onRuntimeException(e);
throw new RuntimeException(e);
}
}
@Override
public Properties getClientInfo()
throws SQLException
{
try {
return getDriverConnection().getClientInfo();
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public Array createArrayOf(String typeName, Object[] elements)
throws SQLException
{
try {
return getDriverConnection().createArrayOf(typeName, elements);
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
public Struct createStruct(String typeName, Object[] attributes)
throws SQLException
{
try {
return getDriverConnection().createStruct(typeName, attributes);
} catch (SQLException e) {
onSqlException(e);
throw e;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
@Override
@SuppressWarnings("unchecked")
public <T> T unwrap(Class<T> iface)
throws SQLException
{
return (T) getConnection();
}
@Override
public boolean isWrapperFor(Class<?> iface)
throws SQLException
{
return iface.isAssignableFrom(getConnection().getClass());
}
/**
* Returns true if the connection is closed.
*/
@Override
public boolean isClosed()
throws SQLException
{
try {
return (_mConn == null
|| getDriverConnection() == null
|| getDriverConnection().isClosed());
} catch (SQLException e) {
onSqlException(e);
log.log(Level.FINER, e.toString(), e);
return true;
} catch (RuntimeException e) {
onRuntimeException(e);
throw e;
}
}
/**
* Reset the connection and return the underlying JDBC connection to
* the pool.
*/
@Override
public void close() throws SQLException
{
ManagedConnectionImpl mConn;
synchronized (this) {
mConn = _mConn;
_mConn = null;
if (mConn == null)
return;
}
try {
// Clean up the connection and put it back in the pool
resetConnection(mConn);
} catch (Throwable e) {
mConn.fatalEvent();
log.log(Level.WARNING, e.toString(), e);
/*
if (e instanceof SQLException)
throw (SQLException) e;
else if (e instanceof RuntimeException)
throw (RuntimeException) e;
else
throw new SQLExceptionWrapper(e);
*/
} finally {
mConn.closeEvent(this);
}
}
/**
* Adds the statement to a list, so they can be automatically closed
* when the connection returns to the pool.
*/
private void addStatement(Statement stmt)
{
if (_statement == null)
_statement = stmt;
else if (_statements != null)
_statements.add(stmt);
else {
_statements = new ArrayList<Statement>();
_statements.add(stmt);
}
}
/**
* Resets the underlying connection to its initial state and closes
* any open statements.
*/
private void resetConnection(ManagedConnectionImpl mConn)
{
closeStatements(mConn);
}
/**
* Closes a single statement.
*/
void closeStatement(Statement stmt)
{
if (_statement == stmt)
_statement = null;
else if (_statements != null)
_statements.remove(stmt);
}
/**
* Closes the connection's statements.
*/
private void closeStatements(ManagedConnectionImpl mConn)
{
ArrayList<Statement> statements = _statements;
_statements = null;
Statement stmt = _statement;
_statement = null;
try {
if (stmt != null)
stmt.close();
} catch (Throwable e) {
log.log(Level.FINE, e.toString(), e);
// Can't set fatalEvent because Sybase throws an exception
// if statements are closed twice
// fatalEvent();
}
for (int i = 0; statements != null && i < statements.size(); i++) {
try {
stmt = statements.get(i);
if (stmt != null)
stmt.close();
} catch (Throwable e) {
log.log(Level.FINE, e.toString(), e);
// Can't set fatalEvent because Sybase throws an exception
// if statements are closed twice
// fatalEvent();
}
}
}
/**
* Returns the underlying connection.
*/
public Connection getDriverConnection()
throws SQLException
{
ManagedConnectionImpl mConn = getMConn();
if (mConn == null)
throw new IllegalStateException(L.l("Cannot use closed connection. Check max-active-time and review application code. "));
Connection conn = mConn.getDriverConnection();
return conn;
}
/**
* Returns the underlying connection.
*/
public ManagedConnectionImpl getMConn()
{
ManagedConnectionImpl mConn = _mConn;
if (mConn == null)
throw new IllegalStateException("connection is closed");
return mConn;
}
/**
* Marks the connection as error.
*/
public void discardConnection()
{
fatalEvent();
}
/**
* Returns the underlying connection.
*/
private void fatalEvent()
{
ManagedConnectionImpl mConn = _mConn;
if (mConn != null)
mConn.fatalEvent();
}
/**
* Returns the underlying connection.
*/
private void onSqlException(SQLException e)
{
System.out.println("SQL-MCONN: " + e);
ManagedConnectionImpl mConn = _mConn;
if (mConn != null)
mConn.onSqlException(e);
}
/**
* Returns the underlying connection.
*/
private void onRuntimeException(RuntimeException e)
{
System.out.println("RTE-MCONN: " + e);
ManagedConnectionImpl mConn = _mConn;
if (mConn != null)
mConn.onRuntimeException(e);
}
protected void setPingRequired()
{
ManagedConnectionImpl mConn = _mConn;
if (mConn != null)
mConn.setPingRequired();
}
/**
* Returns the underlying connection.
*/
private void onFatalException(Exception e)
{
ManagedConnectionImpl mConn = _mConn;
if (mConn != null)
mConn.sendFatalEvent(e);
}
/**
* Returns the underlying connection.
*/
void killPool()
{
ManagedConnectionImpl mConn = _mConn;
if (mConn != null)
mConn.killPool();
}
@Override
protected void finalize()
throws Exception
{
close();
}
@Override
public String toString()
{
return getClass().getSimpleName() + "[" + _mConn + "]";
}
}