org.apache.avalon.cornerstone.blocks.datasources

Class DefaultDataSourceSelector

java.lang.Object

org.apache.avalon.framework.logger.AbstractLogEnabled

org.apache.avalon.cornerstone.blocks.datasources.DefaultDataSourceSelector

All Implemented Interfaces:

org.apache.avalon.cornerstone.services.datasources.DataSourceSelector, org.apache.avalon.framework.activity.Disposable, org.apache.avalon.framework.activity.Initializable, org.apache.avalon.framework.configuration.Configurable, org.apache.avalon.framework.context.Contextualizable, org.apache.avalon.framework.logger.LogEnabled, org.apache.avalon.framework.service.ServiceSelector

public class DefaultDataSourceSelector
extends org.apache.avalon.framework.logger.AbstractLogEnabled
implements org.apache.avalon.cornerstone.services.datasources.DataSourceSelector, org.apache.avalon.framework.context.Contextualizable, org.apache.avalon.framework.configuration.Configurable, org.apache.avalon.framework.activity.Initializable, org.apache.avalon.framework.activity.Disposable

A default implementation for DataSourceSelector. The Configuration is like this:

 <myBlock>
   <data-source name="default"
     class="org.apache.avalon.excalibur.datasource.JdbcDataSource">
     <!-- configuration for JdbcDataSource -->
     <pool-controller min="5" max="10" connection-class="my.overrided.ConnectionClass">
       <keep-alive>select 1</keep-alive>
     </pool-controller>
     <driver>com.database.jdbc.JdbcDriver</driver>
     <dburl>jdbc:driver://host/mydb</dburl>
     <user>username</user>
     <password>password</password>
   </data-source>
 </myBlock>
 

Author:

Avalon Development Team

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.String	m_blockName
private org.apache.avalon.framework.configuration.Configuration	m_configuration
private java.util.Map	m_dataSources

Fields inherited from interface org.apache.avalon.cornerstone.services.datasources.DataSourceSelector

ROLE

Constructor Summary

Constructors

Constructor and Description
DefaultDataSourceSelector()

Method Summary

Methods

Modifier and Type	Method and Description
void	configure(org.apache.avalon.framework.configuration.Configuration configuration)
void	contextualize(org.apache.avalon.framework.context.Context context) Contextualization of the component by the container.
void	dispose()
private org.apache.avalon.framework.configuration.Configuration[]	getDataSourceConfig()
void	initialize()
boolean	isSelectable(java.lang.Object hint)
void	release(java.lang.Object component)
java.lang.Object	select(java.lang.Object hint)

Methods inherited from class org.apache.avalon.framework.logger.AbstractLogEnabled

enableLogging, getLogger, setupLogger, setupLogger, setupLogger

Methods inherited from class java.lang.Object

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

Field Detail

m_configuration

private org.apache.avalon.framework.configuration.Configuration m_configuration

m_dataSources

private java.util.Map m_dataSources

m_blockName

private java.lang.String m_blockName

Constructor Detail

DefaultDataSourceSelector

public DefaultDataSourceSelector()

Method Detail

contextualize

public void contextualize(org.apache.avalon.framework.context.Context context)
                   throws org.apache.avalon.framework.context.ContextException

Contextualization of the component by the container.

Specified by:

contextualize in interface org.apache.avalon.framework.context.Contextualizable

Parameters:

context - the supplied context object

Throws:

org.apache.avalon.framework.context.ContextException

configure

public void configure(org.apache.avalon.framework.configuration.Configuration configuration)

Specified by:

configure in interface org.apache.avalon.framework.configuration.Configurable

initialize

public void initialize()
                throws java.lang.Exception

Specified by:

initialize in interface org.apache.avalon.framework.activity.Initializable

Throws:

java.lang.Exception

getDataSourceConfig

private org.apache.avalon.framework.configuration.Configuration[] getDataSourceConfig()

dispose

public void dispose()

Specified by:

dispose in interface org.apache.avalon.framework.activity.Disposable

isSelectable

public boolean isSelectable(java.lang.Object hint)

Specified by:

isSelectable in interface org.apache.avalon.framework.service.ServiceSelector

select

public java.lang.Object select(java.lang.Object hint)
                        throws org.apache.avalon.framework.service.ServiceException

Specified by:

select in interface org.apache.avalon.framework.service.ServiceSelector

Throws:

org.apache.avalon.framework.service.ServiceException

release

public void release(java.lang.Object component)

Specified by:

release in interface org.apache.avalon.framework.service.ServiceSelector