org.eclipse.osbp.runtime.web.vaadin.databinding/src/org/eclipse/osbp/runtime/web/vaadin/databinding/values/SimpleVaadinPropertyObservableValue.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.runtime.web.vaadin.databinding.values;

import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.property.value.SimpleValueProperty;
import org.eclipse.core.internal.databinding.property.value.SimplePropertyObservableValue;

import com.vaadin.data.Property;
import com.vaadin.data.Property.Viewer;
import com.vaadin.ui.AbstractSelect;

// TODO: Auto-generated Javadoc
/**
 * The Class SimpleVaadinPropertyObservableValue.
 */
@SuppressWarnings("restriction")
public class SimpleVaadinPropertyObservableValue extends
		SimplePropertyObservableValue {

	/**
	 * Instantiates a new simple vaadin property observable value.
	 *
	 * @param realm
	 *            the realm
	 * @param source
	 *            the source
	 * @param property
	 *            the property
	 */
	public SimpleVaadinPropertyObservableValue(Realm realm, Object source,
			SimpleValueProperty property) {
		super(realm, source, property);
	}

	/* (non-Javadoc)
	 * @see org.eclipse.core.internal.databinding.property.value.SimplePropertyObservableValue#getValueType()
	 */
	@Override
	public Object getValueType() {
		// delegate call to getValueType to vaadin property
		com.vaadin.data.Property<?> property = (com.vaadin.data.Property<?>) getObserved();

		if (property instanceof AbstractSelect) {
			AbstractSelect select = (AbstractSelect) property;
			if (select.isMultiSelect()) {
				return select.getType();
			}
		}

		if (property instanceof Property.Viewer) {
			Property.Viewer viewer = (Viewer) property;
			com.vaadin.data.Property<?> internalProperty = viewer
					.getPropertyDataSource();
			if (internalProperty != null) {
				return internalProperty.getType();
			}
		}

		return property.getType();
	}

}