| /******************************************************************************* |
| * Copyright (c) 2014 Obeo. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Obeo - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.emf.compare.rcp.internal.match; |
| |
| import java.util.regex.Pattern; |
| |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.emf.compare.match.eobject.WeightProvider; |
| import org.eclipse.emf.compare.rcp.extension.PluginClassDescriptor; |
| |
| /** |
| * Describes an extension as contributed to the "org.eclipse.emf.compare.rcp.weightProvider" extension point. |
| * |
| * @author <a href="mailto:axel.richard@obeo.fr">Axel Richard</a> |
| */ |
| public class WeightProviderDescriptorRCPImpl extends PluginClassDescriptor<WeightProvider> implements WeightProvider.Descriptor { |
| |
| /** The wrapped weight provider. */ |
| private WeightProvider instance; |
| |
| /** The ranking of the weight provider. */ |
| private int ranking; |
| |
| /** The pattern of namespace URI on which this weight provider can be applied. */ |
| private Pattern nsURI; |
| |
| /** |
| * Creates a descriptor corresponding to the information of the given <em>element</em>. |
| * |
| * @param element |
| * Configuration element from which to create this descriptor. |
| * @param ranking |
| * the ranking of the weight provider. |
| * @param nsURI |
| * The pattern of namespace URI on which this post processor can be applied. |
| */ |
| public WeightProviderDescriptorRCPImpl(IConfigurationElement element, int ranking, Pattern nsURI) { |
| super(element, WeightProviderDescriptorRegistryListener.ATT_CLASS); |
| this.ranking = ranking; |
| this.nsURI = nsURI; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Pattern getNsURI() { |
| return nsURI; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public int getRanking() { |
| return ranking; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public WeightProvider getWeightProvider() { |
| if (instance == null) { |
| instance = createInstance(); |
| } |
| return instance; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public String getInstanceClassName() { |
| return element.getAttribute(attributeName); |
| } |
| |
| } |