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package javax.sql;

import java.sql.SQLException;
import java.io.PrintWriter;


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



/**
 * Interface that defines the methods which are common between <code>DataSource</code>,
 * <code>XADataSource</code> and <code>ConnectionPoolDataSource</code>.
 *<p>
 */
public interface CommonDataSource {

  
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.

Throws:
See Also:
Returns:the log writer for this data source or null if
       logging is disabled
Since:1.4
/**
   * <p>Retrieves the log writer for this <code>DataSource</code>
   * object.
   *
   * <p>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 <code>java.sql.DriverManager</code> class.  When a
   * <code>DataSource</code> object is
   * created, the log writer is initially null; in other words, the
   * default is for logging to be disabled.
   *
   * @return the log writer for this data source or null if
   *        logging is disabled
   * @exception java.sql.SQLException if a database access error occurs
   * @see #setLogWriter
   * @since 1.4
   */
  java.io.PrintWriter getLogWriter() 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.

Params:
  • out – the new log writer; to disable logging, set to null
Throws:
See Also:
Since:1.4
/**
   * <p>Sets the log writer for this <code>DataSource</code>
   * object to the given <code>java.io.PrintWriter</code> object.
   *
   * <p>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 <code>java.sql.DriverManager</code> class. When a
   * <code>DataSource</code> object is created the log writer is
   * initially null; in other words, the default is for logging to be
   * disabled.
   *
   * @param out the new log writer; to disable logging, set to null
   * @exception SQLException if a database access error occurs
   * @see #getLogWriter
   * @since 1.4
   */
  void setLogWriter(java.io.PrintWriter out) 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.

Params:
  • seconds – the data source login time limit
Throws:
See Also:
Since:1.4
/**
   * <p>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 <code>DataSource</code> object is created, the login timeout is
   * initially zero.
   *
   * @param seconds the data source login time limit
   * @exception SQLException if a database access error occurs.
   * @see #getLoginTimeout
   * @since 1.4
   */
  void setLoginTimeout(int seconds) 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.

Throws:
See Also:
Returns:the data source login time limit
Since:1.4
/**
   * 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 <code>DataSource</code> object is created, the login timeout is
   * initially zero.
   *
   * @return the data source login time limit
   * @exception SQLException if a database access error occurs.
   * @see #setLoginTimeout
   * @since 1.4
   */
  int getLoginTimeout() throws SQLException;

}