/**
 * <copyright>
 *
 * Copyright (c) 2015 itemis and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.html
 *
 * Contributors:
 *     itemis - Initial API and implementation
 *
 * </copyright>
 */
package org.eclipse.sphinx.emf.workspace.ui.viewers.state.providers;

import org.eclipse.ui.IMemento;

public interface ITreeElementStateProvider {

	boolean hasUnderlyingModel();

	boolean canUnderlyingModelBeLoaded();

	boolean isUnderlyingModelLoaded();

	void loadUnderlyingModel();

	boolean isResolved();

	boolean isStale();

	boolean canBeExpanded();

	boolean isExpanded();

	Object getTreeElement();

	void appendToMemento(IMemento parentMemento);
}