A factory for connections to the physical data source that this DataSource object represents. A replacement for the DriverManager facility, a DataSource object is the preferred means of getting a connection.
An instance of a DataSource object can be used in a stand alone program to create Connection objects. In the following example, an instance of DB2eDataSource is used to create a Connection to a DB2 Everyplace database with url "jdbc:db2e:myDataSource":
com.ibm.db2e.jdbc.DB2eDataSource ds = new com.ibm.db2e.jdbc.DB2eDataSource();
ds.setUrl("jdbc:db2e:myDataSource");
Connection con = ds.getConnection();
javax.sql package
public interface DataSource
Tabulka 110 and Tabulka 111 list the properties for the DataSource
interface that are supported by DB2 Everyplace. The properties can be
accessed using "getter" and "setter" methods. (DataSource properties
follow the convention specified for properties of JavaBeans(TM) components in
the JavaBeans 1.01 Specification.)
Tabulka 110. Standard DataSource properties supported by DB2 Everyplace
| Property Name | Type | Description |
|---|---|---|
| description | String | description of this data source |
| password | String | database password |
| user | String | user's account name |
Tabulka 111 lists the supported properties for the DataSource interface
that are specific to DB2 Everyplace.
Tabulka 111. DB2 Everyplace-specific properties for the DataSource interface
| Property Name | Type | Description |
|---|---|---|
| encoding | String | character encoding |
| URL | String | data source |
Tabulka 112 lists the methods in the DataSource interface that are
supported by DB2 Everyplace.
Tabulka 112. DataSource interface methods
| Method return value type | Method |
|---|---|
| Connection | getConnection() Attempts to establish a connection with the data source that this DataSource object represents. |
| Connection | getConnection (java.lang.String username, java.lang.String password) Attempts to establish a connection with the data source that this DataSource object represents. |
| int | getLoginTimeout() Gets the maximum time in seconds that this data source can wait while attempting to connect to a database. |
| java.io.PrintWriter | getLogWriter() Retrieves the log writer for this DataSource object. |
| 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(java.io.PrintWriter out) Sets the log writer for this DataSource object to the given java.io.PrintWriter object. |
Související úlohy
Související odkazy