Package org.jvnet.hk2.config

Class WriteableView

java.lang.Object

org.jvnet.hk2.config.WriteableView

All Implemented Interfaces:

InvocationHandler, ConfigView, Transactor

public class WriteableView
extends Object
implements InvocationHandler, Transactor, ConfigView

A WriteableView is a view of a ConfigBean object that allow access to the setters of the ConfigBean.

Author:

Jerome Dochez

Constructor Summary

Constructors

Constructor	Description
WriteableView(ConfigBeanProxy readView)

Method Summary

Modifier and Type	Method	Description
void	abort(Transaction t)	Aborts this Transaction, reverting the state
<T extends ConfigBeanProxy> T	allocateProxy(Class<T> type)	Allocate a new ConfigBean object as part of the Transaction associated with this configuration object.
boolean	canCommit(Transaction t)	Returns true of this Transaction can be committed on this object
List<PropertyChangeEvent>	commit(Transaction t)	Commit this Transaction.
ConfigBean	getMasterView()
ConfigModel.Property	getProperty(String xmlName)
String	getPropertyValue(String propertyName)
<T extends ConfigBeanProxy> T	getProxy(Class<T> type)
<T extends ConfigBeanProxy> Class<T>	getProxyType()
Object	getter(ConfigModel.Property property, Type t)
Transaction	getTransaction()
Object	invoke(Object proxy, Method method, Object[] args)
boolean	join(Transaction t)	Enter a new Transaction, this method should return false if this object is already enlisted in another transaction, or cannot be enlisted with the passed transaction.
void	setMasterView(ConfigView view)
void	setter(ConfigModel.Property property, Object newValue, Type t)
static String	stripMarkers(String s)	remove @ or <> eg "@foo" => "foo" or "" => "foo"

Methods inherited from class java.lang.Object

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

Constructor Detail

WriteableView

public WriteableView(ConfigBeanProxy readView)

Method Detail

getTransaction

public Transaction getTransaction()

invoke

public Object invoke(Object proxy,
                     Method method,
                     Object[] args)
              throws Throwable

Specified by:

invoke in interface InvocationHandler

Throws:

Throwable

getPropertyValue

public String getPropertyValue(String propertyName)

getter

public Object getter(ConfigModel.Property property,
                     Type t)

setter

public void setter(ConfigModel.Property property,
                   Object newValue,
                   Type t)

getProperty

public ConfigModel.Property getProperty(String xmlName)

join

public boolean join(Transaction t)

Enter a new Transaction, this method should return false if this object is already enlisted in another transaction, or cannot be enlisted with the passed transaction. If the object returns true, the object is enlisted in the passed transaction and cannot be enlisted in another transaction until either commit or abort has been issued.

Specified by:

join in interface Transactor

Parameters:

t - the transaction to enlist with

Returns:

true if the enlisting with the passed transaction was accepted, false otherwise

canCommit

public boolean canCommit(Transaction t)
                  throws TransactionFailure

Returns true of this Transaction can be committed on this object

Specified by:

canCommit in interface Transactor

Parameters:

t - is the transaction to commit, should be the same as the one passed during the join(Transaction t) call.

Returns:

true if the trsaction commiting would be successful

Throws:

TransactionFailure - if the changes cannot be validated

stripMarkers

public static String stripMarkers(String s)

remove @ or <> eg "@foo" => "foo" or "" => "foo"

commit

public List<PropertyChangeEvent> commit(Transaction t)
                                 throws TransactionFailure

Commit this Transaction.

Specified by:

commit in interface Transactor

Parameters:

t - the transaction commiting.

Returns:

list of applied property changes

Throws:

TransactionFailure - if the transaction commit failed

abort

public void abort(Transaction t)

Aborts this Transaction, reverting the state

Specified by:

abort in interface Transactor

Parameters:

t - the aborting transaction

allocateProxy

public <T extends ConfigBeanProxy> T allocateProxy(Class<T> type)
                                            throws TransactionFailure

Allocate a new ConfigBean object as part of the Transaction associated with this configuration object. This will eventually be moved to a factory.

Parameters:

type - the request configuration object type

Returns:

the propertly constructed configuration object

Throws:

TransactionFailure - if the allocation failed

getMasterView

public ConfigBean getMasterView()

Specified by:

getMasterView in interface ConfigView

setMasterView

public void setMasterView(ConfigView view)

Specified by:

setMasterView in interface ConfigView

getProxyType

public <T extends ConfigBeanProxy> Class<T> getProxyType()

Specified by:

getProxyType in interface ConfigView

getProxy

public <T extends ConfigBeanProxy> T getProxy(Class<T> type)

Specified by:

getProxy in interface ConfigView