# CommonDataSource

public interface **CommonDataSource**

|---|---|---|
| Known Indirect Subclasses [ConnectionPoolDataSource](https://developers.google.com/j2objc/javadoc/jre/reference/javax/sql/ConnectionPoolDataSource.html), [DataSource](https://developers.google.com/j2objc/javadoc/jre/reference/javax/sql/DataSource.html) |---|---| | [ConnectionPoolDataSource](https://developers.google.com/j2objc/javadoc/jre/reference/javax/sql/ConnectionPoolDataSource.html) | A factory for `PooledConnection` objects. | | [DataSource](https://developers.google.com/j2objc/javadoc/jre/reference/javax/sql/DataSource.html) | A factory for connections to the physical data source that this `DataSource` object represents. | |||

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


### Public Method Summary

|---|---|
| abstract [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html) | [getLogWriter](https://developers.google.com/j2objc/javadoc/jre/reference/javax/sql/CommonDataSource.html#getLogWriter())() Retrieves the log writer for this `DataSource` object. |
| abstract int | [getLoginTimeout](https://developers.google.com/j2objc/javadoc/jre/reference/javax/sql/CommonDataSource.html#getLoginTimeout())() Gets the maximum time in seconds that this data source can wait while attempting to connect to a database. |
| abstract [Logger](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/logging/Logger.html) | [getParentLogger](https://developers.google.com/j2objc/javadoc/jre/reference/javax/sql/CommonDataSource.html#getParentLogger())() Return the parent Logger of all the Loggers used by this data source. |
| abstract void | [setLogWriter](https://developers.google.com/j2objc/javadoc/jre/reference/javax/sql/CommonDataSource.html#setLogWriter(java.io.PrintWriter))([PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html) out) Sets the log writer for this `DataSource` object to the given `java.io.PrintWriter` object. |
| abstract void | [setLoginTimeout](https://developers.google.com/j2objc/javadoc/jre/reference/javax/sql/CommonDataSource.html#setLoginTimeout(int))(int seconds) Sets the maximum time in seconds that this data source will wait while attempting to connect to a database. |

## Public Methods

#### public abstract [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html)
**getLogWriter**
()

<br />

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.

##### Returns

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

##### Throws

| [SQLException](https://developers.google.com/j2objc/javadoc/jre/reference/java/sql/SQLException.html) | if a database access error occurs |
|---|---|

##### See Also

- `https://developers.google.com/j2objc/javadoc/jre/reference/javax/sql/CommonDataSource.html#setLogWriter(java.io.PrintWriter)`

#### public abstract int
**getLoginTimeout**
()

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.

##### Returns

- the data source login time limit

##### Throws

| [SQLException](https://developers.google.com/j2objc/javadoc/jre/reference/java/sql/SQLException.html) | if a database access error occurs. |
|---|---|

##### See Also

- `https://developers.google.com/j2objc/javadoc/jre/reference/javax/sql/CommonDataSource.html#setLoginTimeout(int)`

#### public abstract [Logger](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/logging/Logger.html)
**getParentLogger**
()

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.

##### Returns

- the parent Logger for this data source

##### Throws

| [SQLFeatureNotSupportedException](https://developers.google.com/j2objc/javadoc/jre/reference/java/sql/SQLFeatureNotSupportedException.html) | if the data source does not use `` java.util.logging`.` `` |
|---|---|

#### public abstract void
**setLogWriter**
([PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html) out)

<br />

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.

##### Parameters

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

##### Throws

| [SQLException](https://developers.google.com/j2objc/javadoc/jre/reference/java/sql/SQLException.html) | if a database access error occurs |
|---|---|

##### See Also

- `https://developers.google.com/j2objc/javadoc/jre/reference/javax/sql/CommonDataSource.html#getLogWriter()`

#### public abstract void
**setLoginTimeout**
(int seconds)

<br />

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.

##### Parameters

| seconds | the data source login time limit |
|---|---|

##### Throws

| [SQLException](https://developers.google.com/j2objc/javadoc/jre/reference/java/sql/SQLException.html) | if a database access error occurs. |
|---|---|

##### See Also

- `https://developers.google.com/j2objc/javadoc/jre/reference/javax/sql/CommonDataSource.html#getLoginTimeout()`