org.wamblee.support.persistence
Class ExternalDatabase

java.lang.Object
  org.wamblee.support.persistence.AbstractDatabase
      org.wamblee.support.persistence.ExternalDatabase

All Implemented Interfaces:

Database

public class ExternalDatabase
extends AbstractDatabase

Database that encapsulates connection to an external database. Database connection details can be configured through system properties and environment variables, see DB_URL_PROP, DB_USER_PROP, and {@link #DB_PASSWORD_PROP|. This class assumes modern database drivers that work together with java.util.ServiceLoader so that explicitly doing a Class.forName() is not necessary to load the database driver.

Field Summary

static java.lang.String	DB_PASSWORD_PROP System property/environment variable that defines the database password.
static java.lang.String	DB_URL_PROP System property/environment variable that defines the database URL.
static java.lang.String	DB_USER_PROP System property/environment variable that defines the database user.

Constructor Summary

ExternalDatabase()

Method Summary

void	doStart()
void	doStop()
java.lang.String	getExternalJdbcUrl() Gets the external Jdbc URL to connect to this database from other JVMs.
java.lang.String	getJdbcUrl() Gets the Jdbc Url to connect to this database.
java.lang.String	getPassword() Gets the password to connect to the database.
java.lang.String	getUsername() Gets the username to connect to the database.

Methods inherited from class org.wamblee.support.persistence.AbstractDatabase

createDataSource, getActiveConnections, getProperty, start, stop

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DB_URL_PROP

public static final java.lang.String DB_URL_PROP

System property/environment variable that defines the database URL.

See Also:

Constant Field Values

DB_USER_PROP

public static final java.lang.String DB_USER_PROP

System property/environment variable that defines the database user.

See Also:

Constant Field Values

DB_PASSWORD_PROP

public static final java.lang.String DB_PASSWORD_PROP

System property/environment variable that defines the database password.

See Also:

Constant Field Values

Constructor Detail

ExternalDatabase

public ExternalDatabase()

Method Detail

getExternalJdbcUrl

public java.lang.String getExternalJdbcUrl()

Description copied from interface: Database

Gets the external Jdbc URL to connect to this database from other JVMs.

getJdbcUrl

public java.lang.String getJdbcUrl()

Description copied from interface: Database

Gets the Jdbc Url to connect to this database.

Returns:

Jdbc Url.

getPassword

public java.lang.String getPassword()

Description copied from interface: Database

Gets the password to connect to the database.

Returns:

password.

getUsername

public java.lang.String getUsername()

Description copied from interface: Database

Gets the username to connect to the database.

Returns:

username.

doStart

public void doStart()

Specified by:

doStart in class AbstractDatabase

doStop

public void doStop()

Specified by:

doStop in class AbstractDatabase