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StatementWrapper.java
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Tue, Aug 20, 21:19

StatementWrapper.java
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/*
Copyright (c) 2002, 2016, Oracle and/or its affiliates. All rights reserved.
The MySQL Connector/J is licensed under the terms of the GPLv2
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most MySQL Connectors.
There are special exceptions to the terms and conditions of the GPLv2 as it is applied to
this software, see the FOSS License Exception
<http://www.mysql.com/about/legal/licensing/foss-exception.html>.
This program 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; version 2
of the License.
This program 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.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this
program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth
Floor, Boston, MA 02110-1301 USA
*/
package com.mysql.jdbc.jdbc2.optional;
import java.lang.reflect.Constructor;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.SQLWarning;
import java.sql.Statement;
import com.mysql.jdbc.SQLError;
import com.mysql.jdbc.StatementImpl;
import com.mysql.jdbc.Util;
/**
* Wraps statements so that errors can be reported correctly to ConnectionEventListeners.
*/
public class StatementWrapper extends WrapperBase implements Statement {
private static final Constructor<?> JDBC_4_STATEMENT_WRAPPER_CTOR;
static {
if (Util.isJdbc4()) {
try {
JDBC_4_STATEMENT_WRAPPER_CTOR = Class.forName("com.mysql.jdbc.jdbc2.optional.JDBC4StatementWrapper")
.getConstructor(new Class[] { ConnectionWrapper.class, MysqlPooledConnection.class, Statement.class });
} catch (SecurityException e) {
throw new RuntimeException(e);
} catch (NoSuchMethodException e) {
throw new RuntimeException(e);
} catch (ClassNotFoundException e) {
throw new RuntimeException(e);
}
} else {
JDBC_4_STATEMENT_WRAPPER_CTOR = null;
}
}
protected static StatementWrapper getInstance(ConnectionWrapper c, MysqlPooledConnection conn, Statement toWrap) throws SQLException {
if (!Util.isJdbc4()) {
return new StatementWrapper(c, conn, toWrap);
}
return (StatementWrapper) Util.handleNewInstance(JDBC_4_STATEMENT_WRAPPER_CTOR, new Object[] { c, conn, toWrap }, conn.getExceptionInterceptor());
}
protected Statement wrappedStmt;
protected ConnectionWrapper wrappedConn;
public StatementWrapper(ConnectionWrapper c, MysqlPooledConnection conn, Statement toWrap) {
super(conn);
this.wrappedStmt = toWrap;
this.wrappedConn = c;
}
public Connection getConnection() throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedConn;
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return null; // we actually never get here, but the compiler can't figure that out
}
public void setCursorName(String name) throws SQLException {
try {
if (this.wrappedStmt != null) {
this.wrappedStmt.setCursorName(name);
} else {
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
}
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
}
public void setEscapeProcessing(boolean enable) throws SQLException {
try {
if (this.wrappedStmt != null) {
this.wrappedStmt.setEscapeProcessing(enable);
} else {
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
}
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
}
public void setFetchDirection(int direction) throws SQLException {
try {
if (this.wrappedStmt != null) {
this.wrappedStmt.setFetchDirection(direction);
} else {
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
}
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
}
public int getFetchDirection() throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.getFetchDirection();
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return ResultSet.FETCH_FORWARD; // we actually never get here, but the compiler can't figure that out
}
public void setFetchSize(int rows) throws SQLException {
try {
if (this.wrappedStmt != null) {
this.wrappedStmt.setFetchSize(rows);
} else {
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
}
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
}
public int getFetchSize() throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.getFetchSize();
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return 0; // we actually never get here, but the compiler can't figure that out
}
public ResultSet getGeneratedKeys() throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.getGeneratedKeys();
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return null; // we actually never get here, but the compiler can't figure that out
}
public void setMaxFieldSize(int max) throws SQLException {
try {
if (this.wrappedStmt != null) {
this.wrappedStmt.setMaxFieldSize(max);
} else {
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
}
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
}
public int getMaxFieldSize() throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.getMaxFieldSize();
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return 0; // we actually never get here, but the compiler can't figure that out
}
public void setMaxRows(int max) throws SQLException {
try {
if (this.wrappedStmt != null) {
this.wrappedStmt.setMaxRows(max);
} else {
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
}
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
}
public int getMaxRows() throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.getMaxRows();
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return 0; // we actually never get here, but the compiler can't figure that out
}
public boolean getMoreResults() throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.getMoreResults();
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return false;
}
public boolean getMoreResults(int current) throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.getMoreResults(current);
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return false;
}
public void setQueryTimeout(int seconds) throws SQLException {
try {
if (this.wrappedStmt != null) {
this.wrappedStmt.setQueryTimeout(seconds);
} else {
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
}
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
}
public int getQueryTimeout() throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.getQueryTimeout();
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return 0;
}
public ResultSet getResultSet() throws SQLException {
try {
if (this.wrappedStmt != null) {
ResultSet rs = this.wrappedStmt.getResultSet();
if (rs != null) {
((com.mysql.jdbc.ResultSetInternalMethods) rs).setWrapperStatement(this);
}
return rs;
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return null;
}
public int getResultSetConcurrency() throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.getResultSetConcurrency();
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return 0;
}
public int getResultSetHoldability() throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.getResultSetHoldability();
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return Statement.CLOSE_CURRENT_RESULT;
}
public int getResultSetType() throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.getResultSetType();
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return ResultSet.TYPE_FORWARD_ONLY;
}
public int getUpdateCount() throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.getUpdateCount();
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return -1;
}
public SQLWarning getWarnings() throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.getWarnings();
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return null;
}
public void addBatch(String sql) throws SQLException {
try {
if (this.wrappedStmt != null) {
this.wrappedStmt.addBatch(sql);
}
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
}
public void cancel() throws SQLException {
try {
if (this.wrappedStmt != null) {
this.wrappedStmt.cancel();
}
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
}
public void clearBatch() throws SQLException {
try {
if (this.wrappedStmt != null) {
this.wrappedStmt.clearBatch();
}
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
}
public void clearWarnings() throws SQLException {
try {
if (this.wrappedStmt != null) {
this.wrappedStmt.clearWarnings();
}
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
}
public void close() throws SQLException {
try {
if (this.wrappedStmt != null) {
this.wrappedStmt.close();
}
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
} finally {
this.wrappedStmt = null;
this.pooledConnection = null;
}
}
public boolean execute(String sql, int autoGeneratedKeys) throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.execute(sql, autoGeneratedKeys);
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return false; // we actually never get here, but the compiler can't figure that out
}
public boolean execute(String sql, int[] columnIndexes) throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.execute(sql, columnIndexes);
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return false; // we actually never get here, but the compiler can't figure that out
}
public boolean execute(String sql, String[] columnNames) throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.execute(sql, columnNames);
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return false; // we actually never get here, but the compiler can't figure that out
}
public boolean execute(String sql) throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.execute(sql);
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return false; // we actually never get here, but the compiler can't figure that out
}
public int[] executeBatch() throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.executeBatch();
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return null; // we actually never get here, but the compiler can't figure that out
}
public ResultSet executeQuery(String sql) throws SQLException {
ResultSet rs = null;
try {
if (this.wrappedStmt == null) {
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
}
rs = this.wrappedStmt.executeQuery(sql);
((com.mysql.jdbc.ResultSetInternalMethods) rs).setWrapperStatement(this);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return rs;
}
public int executeUpdate(String sql, int autoGeneratedKeys) throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.executeUpdate(sql, autoGeneratedKeys);
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return -1; // we actually never get here, but the compiler can't figure that out
}
public int executeUpdate(String sql, int[] columnIndexes) throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.executeUpdate(sql, columnIndexes);
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return -1; // we actually never get here, but the compiler can't figure that out
}
public int executeUpdate(String sql, String[] columnNames) throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.executeUpdate(sql, columnNames);
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return -1; // we actually never get here, but the compiler can't figure that out
}
public int executeUpdate(String sql) throws SQLException {
try {
if (this.wrappedStmt != null) {
return this.wrappedStmt.executeUpdate(sql);
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return -1; // we actually never get here, but the compiler can't figure that out
}
public void enableStreamingResults() throws SQLException {
try {
if (this.wrappedStmt != null) {
((com.mysql.jdbc.Statement) this.wrappedStmt).enableStreamingResults();
} else {
throw SQLError.createSQLException("No operations allowed after statement closed", SQLError.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor);
}
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
}
/**
* JDBC 4.2
* Same as {@link #executeBatch()} but returns long[] instead of int[].
*/
public long[] executeLargeBatch() throws SQLException {
try {
if (this.wrappedStmt != null) {
return ((StatementImpl) this.wrappedStmt).executeLargeBatch();
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return null; // we actually never get here, but the compiler can't figure that out
}
/**
* JDBC 4.2
* Same as {@link #executeUpdate(String)} but returns long instead of int.
*/
public long executeLargeUpdate(String sql) throws SQLException {
try {
if (this.wrappedStmt != null) {
return ((StatementImpl) this.wrappedStmt).executeLargeUpdate(sql);
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return -1; // we actually never get here, but the compiler can't figure that out
}
/**
* JDBC 4.2
* Same as {@link #executeUpdate(String, int)} but returns long instead of int.
*/
public long executeLargeUpdate(String sql, int autoGeneratedKeys) throws SQLException {
try {
if (this.wrappedStmt != null) {
return ((StatementImpl) this.wrappedStmt).executeLargeUpdate(sql, autoGeneratedKeys);
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return -1; // we actually never get here, but the compiler can't figure that out
}
/**
* JDBC 4.2
* Same as {@link #executeUpdate(String, int[])} but returns long instead of int.
*/
public long executeLargeUpdate(String sql, int[] columnIndexes) throws SQLException {
try {
if (this.wrappedStmt != null) {
return ((StatementImpl) this.wrappedStmt).executeLargeUpdate(sql, columnIndexes);
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return -1; // we actually never get here, but the compiler can't figure that out
}
/**
* JDBC 4.2
* Same as {@link #executeUpdate(String, String[])} but returns long instead of int.
*/
public long executeLargeUpdate(String sql, String[] columnNames) throws SQLException {
try {
if (this.wrappedStmt != null) {
return ((StatementImpl) this.wrappedStmt).executeLargeUpdate(sql, columnNames);
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return -1; // we actually never get here, but the compiler can't figure that out
}
/**
* JDBC 4.2
* Same as {@link #getMaxRows()} but returns long instead of int.
*/
public long getLargeMaxRows() throws SQLException {
try {
if (this.wrappedStmt != null) {
return ((StatementImpl) this.wrappedStmt).getLargeMaxRows();
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return 0; // we actually never get here, but the compiler can't figure that out
}
/**
* JDBC 4.2
* Same as {@link #getUpdateCount()} but returns long instead of int;
*/
public long getLargeUpdateCount() throws SQLException {
try {
if (this.wrappedStmt != null) {
return ((StatementImpl) this.wrappedStmt).getLargeUpdateCount();
}
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
return -1;
}
/**
* JDBC 4.2
* Same as {@link #setMaxRows(int)} but accepts a long value instead of an int.
*/
public void setLargeMaxRows(long max) throws SQLException {
try {
if (this.wrappedStmt != null) {
((StatementImpl) this.wrappedStmt).setLargeMaxRows(max);
} else {
throw SQLError.createSQLException("Statement already closed", SQLError.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor);
}
} catch (SQLException sqlEx) {
checkAndFireConnectionError(sqlEx);
}
}
}

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