| /******************************************************************************* |
| * Copyright (c) 2006, 2008 IBM Corporation and others. |
| * 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.core.runtime.spi; |
| |
| import org.eclipse.core.runtime.IContributor; |
| |
| /** |
| * This class describes a registry contributor which is an entity that supplies information |
| * to the extension registry. Depending on the registry strategy, contributor might delegate |
| * some of its functionality to a "host" contributor. For instance, OSGi registry strategy |
| * uses "host" contributor to delegate some functionality from fragments to plug-ins. |
| * <p> |
| * This class can be instantiated by the registry Service Providers. |
| * </p><p> |
| * This class can be used without OSGi running. |
| * </p><p> |
| * This class can not be extended. |
| * </p><p> |
| * <b>Note:</b> This class/interface is part of an interim API that is still under |
| * development and expected to change significantly before reaching stability. |
| * It is being made available at this early stage to solicit feedback from pioneering |
| * adopters on the understanding that any code that uses this API will almost certainly |
| * be broken (repeatedly) as the API evolves. |
| * </p> |
| * @since org.eclipse.equinox.registry 3.2 |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| public final class RegistryContributor implements IContributor { |
| |
| /** |
| * Actual ID of the contributor (e.g., "12"). IDs are expected to be unique in the workspace. |
| */ |
| private String actualContributorId; |
| |
| /** |
| * Actual name of the contributor (e.g., "org.eclipse.core.runtime.fragment"). |
| */ |
| private String actualContributorName; |
| |
| /** |
| * ID associated with the entity "in charge" of the contributor (e.g., "1"). IDs are expected |
| * to be unique in the workspace. If contributor does not rely on a host, this value should be |
| * the same as the actual contributor ID. |
| */ |
| private String hostId; |
| |
| /** |
| * Name of the entity "in charge" of the contributor (e.g. "org.eclipse.core.runtime"). |
| * If contributor does not rely on a host, this value should be the same as the actual |
| * contributor name. |
| */ |
| private String hostName; |
| |
| /** |
| * Constructor for the registry contributor. |
| * <p> |
| * The actual ID is a string identifier for the contributor (e.g., "12") and is expected |
| * to be unique within the workspace. The actual ID of the contributor must not |
| * be <code>null</code>. |
| * </p><p> |
| * The actual name is the name associated with the contributor |
| * (e.g., "org.eclipse.core.runtime.fragment"). The actual name of the contributor must |
| * not be <code>null</code>. |
| * </p><p> |
| * The host ID is the identifier associated with the entity "in charge" of the contributor |
| * (e.g., "1"). IDs are expected to be unique in the workspace. If contributor does not |
| * rely on a host, then <code>null</code> should be used as the host ID. |
| * </p><p> |
| * The host name is the name of the entity "in charge" of the contributor |
| * (e.g., "org.eclipse.core.runtime"). If contributor does not rely on a host, then |
| * <code>null</code> should be used as the host name. |
| * </p><p> |
| * There should be 1-to-1 mapping between the contributor and the contibutor ID. |
| * The IDs (either actual or host) can not be re-used in the same registry. |
| * For example, if ID of 12 was used to identify contributorA, the ID of 12 can not |
| * be used to identify contributorB or a host for the contributorC. |
| * </p> |
| * @param actualId contributor identifier |
| * @param actualName name of the contributor |
| * @param hostId id associated with the host, or <code>null</code> |
| * @param hostName name of the host, or <code>null</code> |
| */ |
| public RegistryContributor(String actualId, String actualName, String hostId, String hostName) { |
| this.actualContributorId = actualId; |
| this.actualContributorName = actualName; |
| if (hostId != null) { |
| this.hostId = hostId; |
| this.hostName = hostName; |
| } else { |
| this.hostId = actualId; |
| this.hostName = actualName; |
| } |
| } |
| |
| /** |
| * Provides actual ID associated with the registry contributor (e.g., "12"). IDs are expected |
| * to be unique in the workspace. |
| * |
| * @return actual ID of the registry contributor |
| */ |
| public String getActualId() { |
| return actualContributorId; |
| } |
| |
| /** |
| * Provides actual name of the registry contributor (e.g., "org.eclipe.core.runtime.fragment"). |
| * |
| * @return actual name of the registry contributor |
| */ |
| public String getActualName() { |
| return actualContributorName; |
| } |
| |
| /** |
| * Provides ID associated with the entity "in charge" of the contributor (e.g., "1"). IDs are expected |
| * to be unique in the workspace. If contributor does not rely on a host, this value should be |
| * the same as the actual contributor ID. |
| * |
| * @return id of the registry contributor |
| */ |
| public String getId() { |
| return hostId; |
| } |
| |
| /** |
| * Provides name of the entity "in charge" of the contributor (e.g., "org.eclipse.core.runtime"). |
| * If contributor does not rely on a host, this value should be the same as the actual contributor name. |
| * |
| * @return name of the registry contributor |
| */ |
| public String getName() { |
| return hostName; |
| } |
| |
| /* (non-Javadoc) |
| * @see java.lang.Object#toString() |
| */ |
| public String toString() { |
| return actualContributorName + "[" + actualContributorId + "]"; //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| } |