org.eclipse.osbp.ide.core.ui/src/org/eclipse/osbp/ide/core/ui/display/WorkbenchAvailableService.java

/**
 * Copyright (c) 2011, 2015 - Lunifera GmbH (Gross Enzersdorf, Austria), Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0 
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *         Florian Pirchner - Initial implementation
 */
package org.eclipse.osbp.ide.core.ui.display;

import org.eclipse.osbp.runtime.common.ui.IWorkbenchAvailable;
import org.eclipse.ui.IWorkbench;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
import org.osgi.service.component.annotations.ReferenceCardinality;

/**
 * A marker service which is registered as soon as the
 * org.eclipse.e4.ui.workbench.IWorkbench is registered as an OSGi-service.<br>
 * This prevents that services requiring this service are only started, if the
 * swt.Display has been created.
 */
@Component(immediate = true)
public class WorkbenchAvailableService implements IWorkbenchAvailable {

	@SuppressWarnings("unused")
	private IWorkbench workbench;

	@Reference(service = IWorkbench.class, cardinality=ReferenceCardinality.MANDATORY)
	void bindWorkbench(IWorkbench workbench) {
		this.workbench = workbench;
	}

	void unbindWorkbench(IWorkbench workbench) {
		this.workbench = null;
	}

}