ViewContentProvider.java

package org.mongodb.meclipse.views.objects;

import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;

/**
 * @author Flavio [FlaPer87] Percoco Premoli
 */
public class ViewContentProvider
		implements
			IStructuredContentProvider,
			ITreeContentProvider {

	@Override
	public void inputChanged(Viewer v, Object oldInput, Object newInput) {
	}

	@Override
	public void dispose() {
	}

	@Override
	public Object[] getElements(Object parent) {
		return getChildren(parent);
	}

	@Override
	public Object getParent(Object child) {
		if (child instanceof TreeObject) {
			return ((TreeObject) child).getParent();
		}
		return null;
	}

	@Override
	public Object[] getChildren(Object parent) {
		if (parent instanceof TreeParent) {
			return ((TreeParent) parent).getChildren();
		}
		return new Object[0];
	}

	@Override
	public boolean hasChildren(Object parent) {
		return getChildren(parent).length > 0;
	}

}