程序包 javax.sql

接口 CommonDataSource

所有已知子接口:

ConnectionPoolDataSource, DataSource

public interface CommonDataSource

Interface that defines the methods which are common between DataSource, XADataSource and ConnectionPoolDataSource.

方法概要

限定符和类型	方法	说明
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.
Logger	getParentLogger()	Return the parent Logger of all the Loggers used by this data source.
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.

方法详细资料

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.

返回:

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

抛出:

SQLException - if a database access error occurs

从以下版本开始:

1.4

另请参阅:

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.

参数:

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

抛出:

SQLException - if a database access error occurs

从以下版本开始:

1.4

另请参阅:

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.

参数:

seconds - the data source login time limit

抛出:

SQLException - if a database access error occurs.

从以下版本开始:

1.4

另请参阅:

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.

返回:

the data source login time limit

抛出:

SQLException - if a database access error occurs.

从以下版本开始:

1.4

另请参阅:

setLoginTimeout(int)

getParentLogger

Logger getParentLogger()
                throws SQLFeatureNotSupportedException

Return the parent Logger of all the Loggers used by this data source. This should be the Logger farthest from the root Logger that is still an ancestor of all of the Loggers used by this data source. Configuring this Logger will affect all of the log messages generated by the data source. In the worst case, this may be the root Logger.

返回:

the parent Logger for this data source

抛出:

SQLFeatureNotSupportedException - if the data source does not use java.util.logging

从以下版本开始:

1.7