/*
 * PresencasDataProvider.java
 *
 * Created on February 5, 2007, 5:51 PM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package siprp.medicina.presencas;

import com.evolute.utils.Singleton;
import com.evolute.utils.db.DBManager;
import com.evolute.utils.db.Executer;
import com.evolute.utils.sql.Assignment;
import com.evolute.utils.sql.Field;
import com.evolute.utils.sql.Update;
import siprp.medicina.MedicinaConstants;

/**
 *
 * @author lflores
 */
public class PresencasDataProvider
		implements MedicinaConstants
{
	private static final Object LOCK = new Object();
	private static PresencasDataProvider instance = null;
	
	private Executer EXECUTER;
	
	/** Creates a new instance of PresencasDataProvider */
	public PresencasDataProvider()
		throws Exception
	{
		DBManager dbm = ( DBManager ) Singleton.getInstance( Singleton.DEFAULT_DBMANAGER );
		EXECUTER = dbm.getSharedExecuter( this );
	}
	
	public static PresencasDataProvider getProvider()
		throws Exception
	{
		synchronized( LOCK )
		{
			if( instance == null )
			{
				instance = new PresencasDataProvider();
			}
		}
		return instance;
	}
	
	public void marcarFaltou( Integer id )
		throws Exception
	{
		Update update =
				new Update( "marcacoes_trabalhador",
							new Assignment[]{
								},
							new Field( "id" ).isEqual( id ) );
		EXECUTER.executeQuery( update );
	}
}