DataSource: Difference between revisions
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This page refers to a JSE [https://docs.oracle.com/javase/7/docs/api/javax/sql/DataSource.html javax.sql.DataSource]. The DataSource is part of [[JDBC]] and it is the main interface exposed by the <tt>javax.sql</tt> package. DataSource is part of JSE since 1.4. JDBC specifies that a database Connection can be obtained from a DriverManager or a DataSource. The DataSource is the preferred way of getting the Connection. JEE also mentions DataSource, defining it as a [[JCA_Concepts#Resource_Manager|resource manager]] connection factory for <tt>java.sql.Connection</tt> objects. | This page refers to a JSE [https://docs.oracle.com/javase/7/docs/api/javax/sql/DataSource.html javax.sql.DataSource]. The DataSource is part of [[JDBC]] and it is the main interface exposed by the <tt>javax.sql</tt> package. DataSource is part of JSE since 1.4. JDBC specifies that a database Connection can be obtained from a DriverManager or a DataSource. The DataSource is the preferred way of getting the Connection. JEE also mentions DataSource, defining it as a [[JCA_Concepts#Resource_Manager|resource manager]] connection factory for <tt>java.sql.Connection</tt> objects. | ||
=Initialization= | |||
=TODO= | =TODO= | ||
Revision as of 14:40, 25 September 2017
External
- https://docs.oracle.com/javase/7/docs/api/javax/sql/DataSource.html
- https://docs.oracle.com/javase/7/docs/api/javax/sql/package-summary.html
Internal
Overview
This page refers to a JSE javax.sql.DataSource. The DataSource is part of JDBC and it is the main interface exposed by the javax.sql package. DataSource is part of JSE since 1.4. JDBC specifies that a database Connection can be obtained from a DriverManager or a DataSource. The DataSource is the preferred way of getting the Connection. JEE also mentions DataSource, defining it as a resource manager connection factory for java.sql.Connection objects.
Initialization
TODO
Organizatorium
DataSources can be injected with the JEE @javax.annotation.Resource annotation.
According to JDBC Javadoc, a DataSource is a factory for connections to the physical data source that this DataSource object represents.
An object that implements the DataSource interface will typically be registered with a naming service based on the JavaTM Naming and Directory (JNDI) API.
Example: {{{
DataSource ds = (DataSource)ic.lookup("java:/DefaultDS");
Connection conn = ds.getConnection();
....
conn.close();
}}}