NotesContentProvider.java

/*******************************************************************************
 * Copyright (c) 2007-2009, G. Weirich and Elexis
 * 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:
 *    G. Weirich - initial implementation
 *    
 *******************************************************************************/
package ch.elexis.notes;

import java.util.Collections;
import java.util.List;

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

import ch.elexis.data.Query;

/**
 * ContentProvider to fill the Notes View
 * 
 * @author gerry
 * 
 */
public class NotesContentProvider implements ITreeContentProvider {
	Query<Note> qbe = new Query<Note>(Note.class);
	NoteComparator nc = new NoteComparator();
	
	public Object[] getChildren(Object element){
		qbe.clear();
		qbe.add("Parent", "=", ((Note) element).getId()); //$NON-NLS-1$ //$NON-NLS-2$
		List<Note> res = qbe.execute();
		Collections.sort(res, nc);
		return res.toArray();
	}
	
	public Object getParent(Object element){
		Note note = (Note) element;
		return Note.load(note.get("Parent")); //$NON-NLS-1$
	}
	
	public boolean hasChildren(Object element){
		qbe.clear();
		qbe.add("Parent", "=", ((Note) element).getId()); //$NON-NLS-1$ //$NON-NLS-2$
		List<Note> res = qbe.execute();
		return res.size() > 0;
	}
	
	public Object[] getElements(Object inputElement){
		qbe.clear();
		qbe.add("Parent", "", null); //$NON-NLS-1$ //$NON-NLS-2$
		List<Note> res = qbe.execute();
		Collections.sort(res, nc);
		
		return res.toArray();
	}
	
	public void dispose(){
		// TODO Auto-generated method stub
		
	}
	
	public void inputChanged(Viewer viewer, Object oldInput, Object newInput){
		// TODO Auto-generated method stub
		
	}
	
	public Query<Note> getQuery(){
		return qbe;
	}
}