Package org.eclipse.emf.compare.ide.ui.internal.subscriber

Class SubscriberProviderRegistryListener

java.lang.Object

org.eclipse.emf.compare.rcp.extension.AbstractRegistryEventListener

org.eclipse.emf.compare.ide.ui.internal.subscriber.SubscriberProviderRegistryListener

All Implemented Interfaces:

EventListener, org.eclipse.core.runtime.IRegistryEventListener

public class SubscriberProviderRegistryListener
extends AbstractRegistryEventListener

This listener will react to changes against the subscriber provider extension point, allowing us to be in sync with plugin activation and deactivation.

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.emf.compare.rcp.extension.AbstractRegistryEventListener

AbstractRegistryEventListener.Action

Constructor Summary

Constructors

Constructor	Description
SubscriberProviderRegistryListener(String pluginID, String extensionPointID, org.eclipse.core.runtime.ILog log, SubscriberProviderRegistry registry)	Initialize a registry event listener for our handlers.

Method Summary

Modifier and Type	Method	Description
protected boolean	addedValid(org.eclipse.core.runtime.IConfigurationElement element)	Process the given element as the addition of a valid element extension.
protected boolean	removedValid(org.eclipse.core.runtime.IConfigurationElement element)	Process the given element as the removal of a valid element extension.
protected boolean	validateExtensionElement(org.eclipse.core.runtime.IConfigurationElement element)	Validates if the given element is an element for the given extension and is well constructed.

Methods inherited from class org.eclipse.emf.compare.rcp.extension.AbstractRegistryEventListener

added, added, log, log, log, logMissingAttribute, readElement, readRegistry, removed, removed

Methods inherited from class java.lang.Object

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

Constructor Details

SubscriberProviderRegistryListener

public SubscriberProviderRegistryListener(String pluginID,
 String extensionPointID,
 org.eclipse.core.runtime.ILog log,
 SubscriberProviderRegistry registry)

Initialize a registry event listener for our handlers.

Parameters:

pluginID - ID of the plugin contributing the extension point to monitor.

extensionPointID - Actual id of the extension point to monitor.

log - Log in which errors/warning should be logged.

registry - The actual store of handlers this registry will alter.

Method Details

validateExtensionElement

protected boolean validateExtensionElement(org.eclipse.core.runtime.IConfigurationElement element)

Validates if the given element is an element for the given extension and is well constructed. Returns true if the element should be further parsed for addition or removal.

Specified by:

validateExtensionElement in class AbstractRegistryEventListener

Parameters:

element - the element to validate.

Returns:

true if the element should be further parsed for addition or removal, else otherwise.

addedValid

protected boolean addedValid(org.eclipse.core.runtime.IConfigurationElement element)

Process the given element as the addition of a valid element extension.

Specified by:

addedValid in class AbstractRegistryEventListener

Parameters:

element - the element to be added.

Returns:

true if the given element has been added and if its children should be processed, false otherwise.

removedValid

protected boolean removedValid(org.eclipse.core.runtime.IConfigurationElement element)

Process the given element as the removal of a valid element extension.

Specified by:

removedValid in class AbstractRegistryEventListener

Parameters:

element - the element to be removed.

Returns:

true if the given element has been removed and if its children should be processed, false otherwise.