Class ConfigurationListener

java.lang.Object

org.glassfish.hk2.configuration.internal.ConfigurationListener

All Implemented Interfaces:

BeanDatabaseUpdateListener

@Singleton
@Visibility(LOCAL)
public class ConfigurationListener
extends Object
implements BeanDatabaseUpdateListener

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	ConfigurationListener.DescriptorListener
private static class	ConfigurationListener.ModificationInformation

Field Summary

Fields

Modifier and Type	Field	Description
private HashSet<ActiveDescriptor<?>>	allProgenitors
private DynamicConfigurationService	configurationService
private ConfiguredByContext	context
private Hub	hub
private ConfiguredByInjectionResolver	injectionResolver
private ServiceLocator	locator
private final Object	progenitorLock
private final ConcurrentHashMap<String, ConfigurationListener.ModificationInformation>	typeInformation

Constructor Summary

Constructors

Constructor	Description
ConfigurationListener()

Method Summary

Modifier and Type	Method	Description
private ActiveDescriptor<?>	addInstanceDescriptor(DynamicConfiguration config, ActiveDescriptor<?> parent, String name, String type, Object bean, Object metadata)
private void	calculateProgenitorAddsAndRemoves()
void	commitDatabaseChange(BeanDatabase reference, BeanDatabase newDatabase, Object commitMessage, List<Change> changes)	This method is called after the change of database has already happened.
private String	getTypeFromConfiguredBy(ActiveDescriptor<?> descriptor)
private void	initialize(BeanDatabase database)
private void	invokePostMethod(Object target, List<PropertyChangeEvent> changes, String typeName)
private boolean	invokePreMethod(Object target, List<PropertyChangeEvent> changes, String typeName)
private static boolean	isEager(ActiveDescriptor<?> descriptor)
private void	modifyInstanceDescriptor(ActiveDescriptor<?> parent, String name, Object bean, Object metadata, String typeName, List<PropertyChangeEvent> changes)
private void	postConstruct()
void	prepareDatabaseChange(BeanDatabase currentDatabase, BeanDatabase proposedDatabase, Object commitMessage, List<Change> changes)	This method will be called prior to the bean database being updated.
void	rollbackDatabaseChange(BeanDatabase currentDatabase, BeanDatabase proposedDatabase, Object commitMessage, List<Change> changes)	If any BeanDatabaseUpdateListener.prepareDatabaseChange(BeanDatabase, BeanDatabase, Object, List) throws an exception this method will be called on all listeners whose BeanDatabaseUpdateListener.prepareDatabaseChange(BeanDatabase, BeanDatabase, Object, List) had already been succesfully called.
String	toString()

Methods inherited from class Object

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

Field Details

hub

@Inject
private Hub hub

locator

@Inject
private ServiceLocator locator

configurationService

@Inject
private DynamicConfigurationService configurationService

injectionResolver

@Inject
private ConfiguredByInjectionResolver injectionResolver

context

@Inject
private ConfiguredByContext context

typeInformation

private final ConcurrentHashMap<String, ConfigurationListener.ModificationInformation> typeInformation

progenitorLock

private final Object progenitorLock

allProgenitors

private HashSet<ActiveDescriptor<?>> allProgenitors

Constructor Details

ConfigurationListener

public ConfigurationListener()

Method Details

postConstruct

@PostConstruct
private void postConstruct()

addInstanceDescriptor

private ActiveDescriptor<?> addInstanceDescriptor(DynamicConfiguration config,
 ActiveDescriptor<?> parent,
 String name,
 String type,
 Object bean,
 Object metadata)

invokePreMethod

private boolean invokePreMethod(Object target,
 List<PropertyChangeEvent> changes,
 String typeName)

invokePostMethod

private void invokePostMethod(Object target,
 List<PropertyChangeEvent> changes,
 String typeName)

modifyInstanceDescriptor

private void modifyInstanceDescriptor(ActiveDescriptor<?> parent,
 String name,
 Object bean,
 Object metadata,
 String typeName,
 List<PropertyChangeEvent> changes)

initialize

private void initialize(BeanDatabase database)

isEager

private static boolean isEager(ActiveDescriptor<?> descriptor)

getTypeFromConfiguredBy

private String getTypeFromConfiguredBy(ActiveDescriptor<?> descriptor)

commitDatabaseChange

public void commitDatabaseChange(BeanDatabase reference,
 BeanDatabase newDatabase,
 Object commitMessage,
 List<Change> changes)

Description copied from interface: BeanDatabaseUpdateListener

This method is called after the change of database has already happened. If this method throws an exception subsequent listeners commit methods will be called, but the WriteableBeanDatabase.commit() method will throw an exception, indicating a possibly inconsistent state

Specified by:

commitDatabaseChange in interface BeanDatabaseUpdateListener

Parameters:

reference - The database from which the current database was derived

newDatabase - The current bean database

commitMessage - An object passed to the commit method in a dynamic change

changes - The changes that were made to arrive at the current database

calculateProgenitorAddsAndRemoves

private void calculateProgenitorAddsAndRemoves()

prepareDatabaseChange

public void prepareDatabaseChange(BeanDatabase currentDatabase,
 BeanDatabase proposedDatabase,
 Object commitMessage,
 List<Change> changes)

Description copied from interface: BeanDatabaseUpdateListener

This method will be called prior to the bean database being updated. If this method throws an exception subsequent listeners prepare methods will not be called and the rollback method of any listeners that had run previously will be called and the proposedDatabase will not become the current database. If all the registered bean update listeners prepare methods return normally then the proposedDatabase will become the current database

Specified by:

prepareDatabaseChange in interface BeanDatabaseUpdateListener

Parameters:

currentDatabase - The bean database that is current in effect

proposedDatabase - The bean database that will go into effect

commitMessage - An object passed to the commit method in a dynamic change

changes - The changes that were made to the current database

rollbackDatabaseChange

public void rollbackDatabaseChange(BeanDatabase currentDatabase,
 BeanDatabase proposedDatabase,
 Object commitMessage,
 List<Change> changes)

Description copied from interface: BeanDatabaseUpdateListener

If any BeanDatabaseUpdateListener.prepareDatabaseChange(BeanDatabase, BeanDatabase, Object, List) throws an exception this method will be called on all listeners whose BeanDatabaseUpdateListener.prepareDatabaseChange(BeanDatabase, BeanDatabase, Object, List) had already been succesfully called. If this method throws an exception subsequent listeners rollback methods will be called and the exception will be returned in the exception thrown to the caller of WriteableBeanDatabase.commit() method

Specified by:

rollbackDatabaseChange in interface BeanDatabaseUpdateListener

Parameters:

currentDatabase - The bean database that is current in effect

proposedDatabase - The bean database that was to go into effect (but which will not)

commitMessage - An object passed to the commit method in a dynamic change

changes - The changes that were proposed to be made to the current database

toString

public String toString()

Overrides:

toString in class Object