Package org.apache.tomcat.dbcp.dbcp2

Class Jdbc41Bridge

java.lang.Object

org.apache.tomcat.dbcp.dbcp2.Jdbc41Bridge

public class Jdbc41Bridge
extends Object

Defines bridge methods to JDBC 4.1 (Java 7) methods to allow call sites to operate safely (without AbstractMethodError) when using a JDBC driver written for JDBC 4.0 (Java 6).

There should be no need to this kind of code for JDBC 4.2 in Java 8 due to JDBC's use of default methods.

This should probably be moved or at least copied in some form to Apache Commons DbUtils.

Since:

2.6.0

Constructor Summary

Constructors

Constructor	Description
Jdbc41Bridge()

Method Summary

Modifier and Type	Method	Description
static void	abort(Connection connection, Executor executor)	Delegates to Connection.abort(Executor) without throwing an AbstractMethodError.
static void	closeOnCompletion(Statement statement)	Delegates to Statement.closeOnCompletion() without throwing an AbstractMethodError.
static boolean	generatedKeyAlwaysReturned(DatabaseMetaData databaseMetaData)	Delegates to DatabaseMetaData.generatedKeyAlwaysReturned() without throwing a AbstractMethodError.
static int	getNetworkTimeout(Connection connection)	Delegates to Connection.getNetworkTimeout() without throwing an AbstractMethodError.
static <T> T	getObject(ResultSet resultSet, int columnIndex, Class<T> type)	Delegates to ResultSet.getObject(int, Class) without throwing an AbstractMethodError.
static <T> T	getObject(ResultSet resultSet, String columnLabel, Class<T> type)	Delegates to ResultSet.getObject(String, Class) without throwing an AbstractMethodError.
static Logger	getParentLogger(CommonDataSource commonDataSource)	Delegates to CommonDataSource.getParentLogger() without throwing an AbstractMethodError.
static ResultSet	getPseudoColumns(DatabaseMetaData databaseMetaData, String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern)	Delegates to DatabaseMetaData.getPseudoColumns(String, String, String, String) without throwing a AbstractMethodError.
static String	getSchema(Connection connection)	Delegates to Connection.getSchema() without throwing an AbstractMethodError.
static boolean	isCloseOnCompletion(Statement statement)	Delegates to Statement.isCloseOnCompletion() without throwing an AbstractMethodError.
static void	setNetworkTimeout(Connection connection, Executor executor, int milliseconds)	Delegates to Connection.setNetworkTimeout(Executor, int) without throwing an AbstractMethodError.
static void	setSchema(Connection connection, String schema)	Delegates to Connection.setSchema(String) without throwing an AbstractMethodError.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Jdbc41Bridge

public Jdbc41Bridge()

Method Details

abort

public static void abort(Connection connection,
 Executor executor)
                  throws SQLException

Delegates to Connection.abort(Executor) without throwing an AbstractMethodError.

If the JDBC driver does not implement Connection.abort(Executor), then call Connection.close().

Parameters:

connection - the receiver

executor - See Connection.abort(Executor).

Throws:

SQLException - See Connection.abort(Executor).

See Also:

• Connection.abort(Executor)

generatedKeyAlwaysReturned

public static boolean generatedKeyAlwaysReturned(DatabaseMetaData databaseMetaData)
                                          throws SQLException

Delegates to DatabaseMetaData.generatedKeyAlwaysReturned() without throwing a AbstractMethodError.

If the JDBC driver does not implement DatabaseMetaData.generatedKeyAlwaysReturned(), then return false.

Parameters:

databaseMetaData - See DatabaseMetaData.generatedKeyAlwaysReturned()

Returns:

See DatabaseMetaData.generatedKeyAlwaysReturned()

Throws:

SQLException - See DatabaseMetaData.generatedKeyAlwaysReturned()

See Also:

• DatabaseMetaData.generatedKeyAlwaysReturned()

getNetworkTimeout

public static int getNetworkTimeout(Connection connection)
                             throws SQLException

Delegates to Connection.getNetworkTimeout() without throwing an AbstractMethodError.

If the JDBC driver does not implement Connection.getNetworkTimeout(), then return 0.

Parameters:

connection - the receiver

Returns:

See Connection.getNetworkTimeout()

Throws:

SQLException - See Connection.getNetworkTimeout()

See Also:

• Connection.getNetworkTimeout()

getObject

public static <T> T getObject(ResultSet resultSet,
 int columnIndex,
 Class<T> type)
                       throws SQLException

Delegates to ResultSet.getObject(int, Class) without throwing an AbstractMethodError.

If the JDBC driver does not implement ResultSet.getObject(int, Class), then return 0.

Type Parameters:

T - See ResultSet.getObject(int, Class)

Parameters:

resultSet - See ResultSet.getObject(int, Class)

columnIndex - See ResultSet.getObject(int, Class)

type - See ResultSet.getObject(int, Class)

Returns:

See ResultSet.getObject(int, Class)

Throws:

SQLException - See ResultSet.getObject(int, Class)

See Also:

• ResultSet.getObject(int, Class)

getObject

public static <T> T getObject(ResultSet resultSet,
 String columnLabel,
 Class<T> type)
                       throws SQLException

Delegates to ResultSet.getObject(String, Class) without throwing an AbstractMethodError.

Type Parameters:

T - See ResultSet.getObject(String, Class)

Parameters:

resultSet - See ResultSet.getObject(String, Class)

columnLabel - See ResultSet.getObject(String, Class)

type - See ResultSet.getObject(String, Class)

Returns:

See ResultSet.getObject(String, Class)

Throws:

SQLException - See ResultSet.getObject(String, Class)

See Also:

• ResultSet.getObject(int, Class)

getPseudoColumns

public static ResultSet getPseudoColumns(DatabaseMetaData databaseMetaData,
 String catalog,
 String schemaPattern,
 String tableNamePattern,
 String columnNamePattern)
                                  throws SQLException

Delegates to DatabaseMetaData.getPseudoColumns(String, String, String, String) without throwing a AbstractMethodError.

If the JDBC driver does not implement DatabaseMetaData.getPseudoColumns(String, String, String, String), then return null.

Parameters:

databaseMetaData - the receiver

catalog - See DatabaseMetaData.getPseudoColumns(String, String, String, String)

schemaPattern - See DatabaseMetaData.getPseudoColumns(String, String, String, String)

tableNamePattern - See DatabaseMetaData.getPseudoColumns(String, String, String, String)

columnNamePattern - See DatabaseMetaData.getPseudoColumns(String, String, String, String)

Returns:

See DatabaseMetaData.getPseudoColumns(String, String, String, String)

Throws:

SQLException - See DatabaseMetaData.getPseudoColumns(String, String, String, String)

See Also:

• DatabaseMetaData.getPseudoColumns(String, String, String, String)

getSchema

public static String getSchema(Connection connection)
                        throws SQLException

Delegates to Connection.getSchema() without throwing an AbstractMethodError.

If the JDBC driver does not implement Connection.getSchema(), then return null.

Parameters:

connection - the receiver

Returns:

null for a JDBC 4 driver or a value per Connection.getSchema().

Throws:

SQLException - See Connection.getSchema().

See Also:

• Connection.getSchema()

setNetworkTimeout

public static void setNetworkTimeout(Connection connection,
 Executor executor,
 int milliseconds)
                              throws SQLException

Delegates to Connection.setNetworkTimeout(Executor, int) without throwing an AbstractMethodError.

If the JDBC driver does not implement Connection.setNetworkTimeout(Executor, int), then do nothing.

Parameters:

connection - the receiver

executor - See Connection.setNetworkTimeout(Executor, int)

milliseconds - Connection.setNetworkTimeout(Executor, int)

Throws:

SQLException - Connection.setNetworkTimeout(Executor, int)

See Also:

• Connection.setNetworkTimeout(Executor, int)

setSchema

public static void setSchema(Connection connection,
 String schema)
                      throws SQLException

Delegates to Connection.setSchema(String) without throwing an AbstractMethodError.

If the JDBC driver does not implement Connection.setSchema(String), then do nothing.

Parameters:

connection - the receiver

schema - See Connection.setSchema(String).

Throws:

SQLException - See Connection.setSchema(String).

See Also:

• Connection.setSchema(String)

closeOnCompletion

public static void closeOnCompletion(Statement statement)
                              throws SQLException

Delegates to Statement.closeOnCompletion() without throwing an AbstractMethodError.

If the JDBC driver does not implement Statement.closeOnCompletion(), then just check that the connection is closed to then throw an SQLException.

Parameters:

statement - See Statement.closeOnCompletion()

Throws:

SQLException - See Statement.closeOnCompletion()

See Also:

• Statement.closeOnCompletion()

isCloseOnCompletion

public static boolean isCloseOnCompletion(Statement statement)
                                   throws SQLException

Delegates to Statement.isCloseOnCompletion() without throwing an AbstractMethodError.

If the JDBC driver does not implement Statement.isCloseOnCompletion(), then just check that the connection is closed to then throw an SQLException.

Parameters:

statement - See Statement.isCloseOnCompletion()

Returns:

See Statement.isCloseOnCompletion()

Throws:

SQLException - See Statement.isCloseOnCompletion()

See Also:

• Statement.closeOnCompletion()

getParentLogger

public static Logger getParentLogger(CommonDataSource commonDataSource)
                              throws SQLFeatureNotSupportedException

Delegates to CommonDataSource.getParentLogger() without throwing an AbstractMethodError.

If the JDBC driver does not implement CommonDataSource.getParentLogger(), then return null.

Parameters:

commonDataSource - See CommonDataSource.getParentLogger()

Returns:

See CommonDataSource.getParentLogger()

Throws:

SQLFeatureNotSupportedException - See CommonDataSource.getParentLogger()