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org.apache.avalon.framework.container
Class ContainerUtil

java.lang.Object
  org.apache.avalon.framework.container.ContainerUtil

public final class ContainerUtil

extends java.lang.Object

Utility class that makes it easier to transfer a component throught it's lifecycle stages.

Version:

$Id: ContainerUtil.java 30977 2004-07-30 08:57:54Z niclas $

Author:

Avalon Development Team

Method Summary

static void	compose(java.lang.Object object, ComponentManager componentManager) Deprecated. compose() is no longer the preferred method via which components will be supplied with Components. Please Use service() from Composable instead.
static void	configure(java.lang.Object object, Configuration configuration) Configure specified object if it implements the Configurable interface.
static void	contextualize(java.lang.Object object, Context context) Supply specified object with a Context object if it implements the Contextualizable interface.
static void	dispose(java.lang.Object object) Dispose specified object if it implements the Disposable interface.
static void	enableLogging(java.lang.Object object, Logger logger) Supply specified object with Logger if it implements the LogEnabled interface.
static void	execute(java.lang.Object object) Execute the specified object if it implements the Executable interface.
static void	initialize(java.lang.Object object) Initialize specified object if it implements the Initializable interface.
static void	parameterize(java.lang.Object object, Parameters parameters) Parameterize specified object if it implements the Parameterizable interface.
static void	service(java.lang.Object object, ServiceManager serviceManager) Supply specified object with ServiceManager if it implements the Serviceable interface.
static void	shutdown(java.lang.Object object) Run specified object through shutdown lifecycle stages (Stop and Dispose).
static void	start(java.lang.Object object) Start specified object if it implements the Startable interface.
static void	stop(java.lang.Object object) Stop specified object if it implements the Startable interface.

Methods inherited from class java.lang.Object

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

Method Detail

shutdown

public static void shutdown(java.lang.Object object)
                     throws java.lang.Exception

Run specified object through shutdown lifecycle stages (Stop and Dispose).

Parameters:

object - the object to shutdown

Throws:

java.lang.Exception - if there is a problem stoppping object

enableLogging

public static void enableLogging(java.lang.Object object,
                                 Logger logger)

Supply specified object with Logger if it implements the LogEnabled interface.

Parameters:

object - the object to Start

logger - the logger to enable component with. May be null in which case the specified object must not implement LogEnabled.

Throws:

java.lang.IllegalArgumentException - if the object is LogEnabled but Logger is null

contextualize

public static void contextualize(java.lang.Object object,
                                 Context context)
                          throws ContextException

Supply specified object with a Context object if it implements the Contextualizable interface.

Parameters:

object - the object to contextualize

context - the context object to use for object. May be null in which case the specified object must not implement Contextualizable.

Throws:

ContextException - if there is a problem contextualizing object

java.lang.IllegalArgumentException - if the object is Contextualizable but context is null

service

public static void service(java.lang.Object object,
                           ServiceManager serviceManager)
                    throws ServiceException

Supply specified object with ServiceManager if it implements the Serviceable interface.

Parameters:

object - the object to service

serviceManager - the serviceManager object to use for object. May be null in which case the specified object must not implement Serviceable.

Throws:

ServiceException - if there is a problem servicing object

java.lang.IllegalArgumentException - if the object is Servicable but ServiceManager is null

compose

public static void compose(java.lang.Object object,
                           ComponentManager componentManager)
                    throws ComponentException

Deprecated. compose() is no longer the preferred method via which components will be supplied with Components. Please Use service() from Composable instead.

Supply specified object with ComponentManager if it implements the Composable interface.

Parameters:

object - the object to compose

componentManager - the ComponentManager object to use for object. May be null in which case the specified object must not implement Composable.

Throws:

ComponentException - if there is a problem composing object

java.lang.IllegalArgumentException - if the object is Composable but ComponentManager is null

configure

public static void configure(java.lang.Object object,
                             Configuration configuration)
                      throws ConfigurationException

Configure specified object if it implements the Configurable interface.

Parameters:

object - the object to Start

configuration - the configuration object to use during configuration. May be null in which case the specified object must not implement Configurable

Throws:

ConfigurationException - if there is a problem Configuring object, or the object is Configurable but Configuration is null

java.lang.IllegalArgumentException - if the object is Configurable but Configuration is null

parameterize

public static void parameterize(java.lang.Object object,
                                Parameters parameters)
                         throws ParameterException

Parameterize specified object if it implements the Parameterizable interface.

Parameters:

object - the object to Parameterize.

parameters - the parameters object to use during Parameterization. May be null in which case the specified object must not implement Parameterizable.

Throws:

ParameterException - if there is a problem Parameterizing object

java.lang.IllegalArgumentException - if the object is Parameterizable but parameters is null

initialize

public static void initialize(java.lang.Object object)
                       throws java.lang.Exception

Initialize specified object if it implements the Initializable interface.

Parameters:

object - the object to Initialize

Throws:

java.lang.Exception - if there is a problem Initializing object

start

public static void start(java.lang.Object object)
                  throws java.lang.Exception

Start specified object if it implements the Startable interface.

Parameters:

object - the object to Start

Throws:

java.lang.Exception - if there is a problem Starting object

execute

public static void execute(java.lang.Object object)
                    throws java.lang.Exception

Execute the specified object if it implements the Executable interface.

Parameters:

object - the object to execute

Throws:

java.lang.Exception - if there is a problem executing object

stop

public static void stop(java.lang.Object object)
                 throws java.lang.Exception

Stop specified object if it implements the Startable interface.

Parameters:

object - the object to stop

Throws:

java.lang.Exception - if there is a problem stoppping object

dispose

public static void dispose(java.lang.Object object)

Dispose specified object if it implements the Disposable interface.

Parameters:

object - the object to dispose