XADataSource (JBoss J2EE API) - JBoss 3.2.7 j2ee API Documentation 英文版文档
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javax.sql
Interface XADataSource
- public interface XADataSource
A factory for XAConnection objects. An object that implements the XADataSource interface is typically registered with a JNDI service provider.
| Method Summary | |
int |
getLoginTimeout()
Gets the maximum time in seconds that this data source can wait while attempting to connect to a database. |
PrintWriter |
getLogWriter()
Get the log writer for this data source. |
XAConnection |
getXAConnection()
Attempt to establish a database connection. |
XAConnection |
getXAConnection(String user,
String password)
Attempt to establish a database connection. |
void |
setLoginTimeout(int sec)
Sets the maximum time in seconds that this data source will wait while attempting to connect to a database. |
void |
setLogWriter(PrintWriter printWriter)
Set the log writer for this data source. |
| Method Detail |
getLogWriter
public PrintWriter getLogWriter() throws SQLException
Get the log writer for this data source.
The log writer is a character output stream to which all logging and tracing messages for this data source object instance 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 data source object is created the log writer is initially null, in other words, logging is disabled.
- Returns:
- the log writer for this data source, null if disabled
- Throws:
SQLException- - if a database-access error occurs.
getLoginTimeout
public 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 data source object is created the login timeout
is initially zero.
- Returns:
- the data source login time limit
- Throws:
SQLException- - if a database-access error occurs.
getXAConnection
public XAConnection getXAConnection() throws SQLException
- Attempt to establish a database connection.
- Returns:
- a Connection to the database
- Throws:
SQLException- - if a database-access error occurs.
getXAConnection
public XAConnection getXAConnection(String user, String password) throws SQLException
- Attempt to establish a database connection.
- Parameters:
user- - the database user on whose behalf the Connection is being madepassword- - the user's password- Returns:
- a Connection to the database
- Throws:
SQLException- - if a database-access error occurs.
setLogWriter
public void setLogWriter(PrintWriter printWriter) throws SQLException
Set the log writer for this data source.
The log writer is a character output stream to which all logging and tracing messages for this data source object instance 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 data source object is created the log writer is initially null, in other words, logging is disabled.
- Parameters:
printWriter- - the new log writer; to disable, set to null- Throws:
SQLException- - if a database-access error occurs.
setLoginTimeout
public void setLoginTimeout(int sec)
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 data source object is created the
login timeout is initially zero.
- Parameters:
sec- - the data source login time limit- Throws:
SQLException- - if a database-access error occurs.
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