Module java.sql

Package javax.sql

Interface XADataSource

All Superinterfaces:

CommonDataSource

public interface XADataSource
extends CommonDataSource

A factory for XAConnection objects that is used internally. An object that implements the XADataSource interface is typically registered with a naming service that uses the Java Naming and Directory Interface (JNDI).

An implementation of XADataSource must include a public no-arg constructor.

Since:

1.4

Method Summary

Modifier and Type	Method	Description
default XAConnectionBuilder	createXAConnectionBuilder()	Creates a new XAConnectionBuilder instance
int	getLoginTimeout()	Gets the maximum time in seconds that this data source can wait while attempting to connect to a database.
PrintWriter	getLogWriter()	Retrieves the log writer for this DataSource object.
XAConnection	getXAConnection()	Attempts to establish a physical database connection that can be used in a distributed transaction.
XAConnection	getXAConnection(String user, String password)	Attempts to establish a physical database connection, using the given user name and password.
void	setLoginTimeout(int seconds)	Sets the maximum time in seconds that this data source will wait while attempting to connect to a database.
void	setLogWriter(PrintWriter out)	Sets the log writer for this DataSource object to the given java.io.PrintWriter object.

Methods declared in interface javax.sql.CommonDataSource

createShardingKeyBuilder, getParentLogger

Method Details

getXAConnection

XAConnection getXAConnection()
                      throws SQLException

Attempts to establish a physical database connection that can be used in a distributed transaction.

Returns:

an XAConnection object, which represents a physical connection to a data source, that can be used in a distributed transaction

Throws:

SQLException - if a database access error occurs

SQLFeatureNotSupportedException - if the JDBC driver does not support this method

SQLTimeoutException - when the driver has determined that the timeout value specified by the setLoginTimeout method has been exceeded and has at least tried to cancel the current database connection attempt

Since:

1.4

getXAConnection

XAConnection getXAConnection(String user,
 String password)
                      throws SQLException

Attempts to establish a physical database connection, using the given user name and password. The connection that is returned is one that can be used in a distributed transaction.

Parameters:

user - the database user on whose behalf the connection is being made

password - the user's password

Returns:

an XAConnection object, which represents a physical connection to a data source, that can be used in a distributed transaction

Throws:

SQLException - if a database access error occurs

SQLFeatureNotSupportedException - if the JDBC driver does not support this method

SQLTimeoutException - when the driver has determined that the timeout value specified by the setLoginTimeout method has been exceeded and has at least tried to cancel the current database connection attempt

Since:

1.4

getLogWriter

PrintWriter getLogWriter()
                  throws SQLException

Retrieves the log writer for this DataSource object.

The log writer is a character output stream to which all logging and tracing messages for this data source will be printed. This includes messages printed by the methods of this object, messages printed by methods of other objects manufactured by this object, and so on. Messages printed to a data source specific log writer are not printed to the log writer associated with the java.sql.DriverManager class. When a DataSource object is created, the log writer is initially null; in other words, the default is for logging to be disabled.

Specified by:

getLogWriter in interface CommonDataSource

Returns:

the log writer for this data source or null if logging is disabled

Throws:

SQLException - if a database access error occurs

Since:

1.4

See Also:

• CommonDataSource.setLogWriter(java.io.PrintWriter)

setLogWriter

void setLogWriter(PrintWriter out)
           throws SQLException

Sets the log writer for this DataSource object to the given java.io.PrintWriter object.

The log writer is a character output stream to which all logging and tracing messages for this data source will be printed. This includes messages printed by the methods of this object, messages printed by methods of other objects manufactured by this object, and so on. Messages printed to a data source- specific log writer are not printed to the log writer associated with the java.sql.DriverManager class. When a DataSource object is created the log writer is initially null; in other words, the default is for logging to be disabled.

Specified by:

setLogWriter in interface CommonDataSource

Parameters:

out - the new log writer; to disable logging, set to null

Throws:

SQLException - if a database access error occurs

Since:

1.4

See Also:

• CommonDataSource.getLogWriter()

setLoginTimeout

void setLoginTimeout(int seconds)
              throws SQLException

Sets the maximum time in seconds that this data source will wait while attempting to connect to a database. A value of zero specifies that the timeout is the default system timeout if there is one; otherwise, it specifies that there is no timeout. When a DataSource object is created, the login timeout is initially zero.

Specified by:

setLoginTimeout in interface CommonDataSource

Parameters:

seconds - the data source login time limit

Throws:

SQLException - if a database access error occurs.

Since:

1.4

See Also:

• CommonDataSource.getLoginTimeout()

getLoginTimeout

int getLoginTimeout()
             throws SQLException

Gets the maximum time in seconds that this data source can wait while attempting to connect to a database. A value of zero means that the timeout is the default system timeout if there is one; otherwise, it means that there is no timeout. When a DataSource object is created, the login timeout is initially zero.

Specified by:

getLoginTimeout in interface CommonDataSource

Returns:

the data source login time limit

Throws:

SQLException - if a database access error occurs.

Since:

1.4

See Also:

• CommonDataSource.setLoginTimeout(int)

createXAConnectionBuilder

default XAConnectionBuilder createXAConnectionBuilder()
                                               throws SQLException

Creates a new XAConnectionBuilder instance

Implementation Requirements:

The default implementation will throw a SQLFeatureNotSupportedException.

Returns:

The XAConnectionBuilder instance that was created

Throws:

SQLException - if an error occurs creating the builder

SQLFeatureNotSupportedException - if the driver does not support sharding

Since:

9

See Also:

• XAConnectionBuilder